Netgear XE102 Powerline Ethernet Adapter

Average customer rating:

worked for 1 day . . . haven't got it to work again

Very easy to install and use

Not a good customer experience

Slick Last Resort Networking Solution!

It didn't work for me

Netgear XE102 Powerline Ethernet Adapter

Manufacturer: Netgear
ProductGroup: CE
Binding: Electronics

Networking & Online Communication | Computer Add-Ons | Computers & Add-Ons | Categories | Electronics | Broadband Access | Telephony | Wired Networks | Wireless
Accessories:

Monster Cable JP ULPC HP-6 U-Link USB 1.0 Cable (6 ft., White)

Netgear FA120 10/100 USB 2.0 Adapter

Product Features:

Allows simultaneous shared Internet access across existing 110V Electrical Outlets

Works with 2 & 3 prong standard 110 volt electrical outlets

56-Bit DES Encryption network ensures privacy and security

Transfers data at speeds up to 14 mbps, faster than 802.11b wireless

ASIN: B00008I9KJ

Product Description

For a truly simple way to bring the Internet to any room in your home, look no further than NETGEAR's Wall-Plugged Ethernet Bridge. It plugs into an electrical outlet and uses your existing electrical wiring to give your entire household access to your Cable/DSL connection. With no expensive new wiring or cabling to install, your family can surf the Web, participate in online gaming, send and receive e-mail, and share files and printers, all from different rooms at the same time. Uncomplicated and very quick to install, it plugs right into a wall outlet, reducing clutter and saving valuable desk space. Designed for ease of use, it has new, easy-to-read icon LEDs, and protects your network communications from eavesdroppers and hackers, while not increasing your electricity bill.Networks your PCs and shares a Cable/DSL Internet connection using existing 110V electrical outlets in your home. Automatic rate adaption chooses the best data rate depending on the level of interference caused by other electrical appliances. Compatible with 10 Mbps or 10/100 Mbps Ethernet products, and it also works seamlessly with NETGEAR Cable/DSL routers.Boasts Ethernet-like data rates of up to 14 Mbps. Works across multiple phases and circuit breakers to provide complete coverage in your home. Ensures privacy and security over the Powerline network with 56-Bit Data Encryption Standard (DES).Saves both time and money, since there's no expensive new wiring to install or modify. Plugs directly into your wall outlets, preserving valuable desk space, and works with two and three-prong standard 110 volt electrical outlets. Allows you to remotely connect popular gaming consoles to your cable/DSL Internet connection, and features distinctive status LEDs.

Customer Reviews:

worked for 1 day . . . haven't got it to work again.......2007-04-12

I bought this from BB and it worked great right out of the box, Not sure what happened after the first day but now i can no longer get it to connect. I'm not getting an internet signal at the remote location. For the $80+ i spent on this i would have been better off just upgrading to a new Pre-N wireless router. Don't waste your money . . . if you do still want this I'll gladly sell you mine!

Very easy to install and use.......2005-07-28

We have three of these in use for about a year now in our home. Just plugged them in. One is attached to the router, the other two are on computers in different parts of the house. They even supply the Ethernet cable with the adapter. No problems noted so far.

Not a good customer experience.......2004-06-12

For whatever reason this set-up did not work. As others have noted, phone support is non-existent. Even at 4 am they won't take your call. Email to support was also fruitless. I got one email back asking "what are your settings?". I replied, sent a tracer but never heard back. I see they have discontinued this product. Technical issues aside, Netgear has a ways to go to provide basic customer support.

Slick Last Resort Networking Solution!.......2004-06-01

I bought this because I have a shed next to my garage that my WiFi doesn't quite reach. This was definatly the easiest solution to networking into my shop so I could have internet and play Mp3s off my network.

I plugged one into my router, and the other into my 150mhz laptop I used in the shed (a glorified Mp3 player at this rate, but still does that and surfs the net well!)

Turned on the laptop... I was on my network at a little over 8Mbps. Sweet!

Streamed Mp3s, tested the internet... super fast. Worked great. Perfect solution. Couldn't be happier...

The only downfall was that the encryption software (not that I need it) says W98 is required. But, it actuality it requires W98SE or higher. So, I couldn't install the software (I installed in on my XP laptop to test the speed with their tools).

Kinda sucks SE is required... but, I can live with it now that I have internet and can share MP3s in my shop!

It didn't work for me.......2004-05-01

I tried using it to connect two medium sized rooms that were right next to each other. It only worked reasonably well for a little while after I plugged both of them in (or unplugged them both and re-plugged them in). It might have worked for non-internet networking, but I just wanted to have net access and that wasn't happening except for a brief period after resetting the power as I mentioned. It seems to have gotten a lot of good reviews, so maybe it was just my place that was the problem, but for what it's worth, it wasn't the magic it sounded like it was.

Netgear 85Mbps Wall-Plugged Ethernet Adapter Kit ( XE103G-100NAS )

Average customer rating:

Works as advertised
Plug and play
No worries!
Plug and Play
Ethernet over Power Line

Netgear 85Mbps Wall-Plugged Ethernet Adapter Kit ( XE103G-100NAS )

Manufacturer: Netgear
ProductGroup: CE
Binding: Electronics

Accessories:

Product Features:

Complete kit (two units) - Uses existing electrical wiring to extend a home network
Turns any outlet into a new network connection
Up to 85 Mbps* data rates for faster file transfers
Simple plug and play installation
Predictable and dependable network speeds

ASIN: B000GR1CBI
Release Date: 2006-08-21

Product Description

NETGEAR's 85 Mbps Wall-Plugged Ethernet Adapter (XE103) is the fast solution for extending your home network by using standard electrical outlets. It delivers everything you need to set up an Internet connection in any room without running new wires. Once it is inserted into the wall outlet, simply plug one XE103 into your router and another XE103 into any Ethernet ready device. For instance, you can use its 10/100 Ethernet port to connect a desktop or notebook PC, a gaming console, NETGEAR's SC101 Storage Central, a Slingbox, a DVR or NETGEAR's PS121 USB Print Server. You eliminate dead spots in your wireless network, while enjoying a fast 85 Mbps speed capable of transmitting multiple video streams at once and without interruption. With no software to install, setup is literally a matter of Plug and Play.

Customer Reviews:

Works as advertised.......2007-09-08

I have been told wireless technology does not work in my Condo because of double wall construction, I must admit this is true. Until I purchased the Wall Pullgged Ethernet Adapter Kit. Works like a charm.

Plug and play.......2007-08-26

I was a bit apprehensive about this product, as there seem to be a few buyers who were disappointed. Apparently, it just doesn't work with some home wiring. Happily, I'm in the majority of those for whom the device worked immediately and flawlessly. I plugged one "wall wart" into an electrical outlet next to my router, connected it to my router via an Ethernet cable, then plugged in another wart next to my computer, and connected it to my LAN port on my computer. To my considerable surprise, it worked immediately--I was up and running on the LAN, with an internet connection that was perceptibly faster than the G Wireless I had been using. I was surprised that there was no configuration necessary--I didn't even read the darn instructions! I immediately bought another one for my daughter's computer (on the same network), and dustbinned my wireless AP. After the nightmare of Windows wireless configuration and flakiness, this device is like a life raft to a drowning sailor.

I should mention that the password configuration was a bit tricky--and reading the instructions didn't help. What threw me was that the password utility shows a nice list of the connectors it finds on the network--except the one that's attached to your own computer (the one you're running the utility on) it only showed me my router's and my daughter's (no SHE doesn't have warts...). You have to configure your own device "blind". This is something that could use improvement, hence only 4 stars.

No worries!.......2007-08-23

I live in a rented townhome. Slingbox Pro in living room, cable modem downstairs in the office. Don't want to stream video over my wireless network, so purchased the XE103. Opened the box, plugged them in to a couple of outlets, and it just works. No idea what speed I get but it's more than enough for the Slingbox.

Great product for apartment dwellers!

Plug and Play.......2007-08-19

The hardest part of installing these is either opening the box or bending down to plug them in....YUP...that simple... I have tried a number of wireless routers and have tweaked them every which way possible over the years to always end up disappointed with both speed and reliability. I purchaed a set of these 2 months ago and havent had one issue at all. The speed is considerably faster than wi-Fi and I stay connected 24/7 with no issues at all. No tweaking...no encryption...no headaches....just easy to use internet all over the house. I've even set them up in retail stores and they love them.

Ethernet over Power Line.......2007-07-25

Could not be easier to install and worked perfectly out of the box. I am very pleased.

Netgear 85Mbps Wall-Plugged Ethernet Adapter ( XE103-100NAS )

Average customer rating:

works great out of the box
Decent Speed - Very Reliable
Very easy to set up and use
Powerline Adapters
Works great!

Netgear 85Mbps Wall-Plugged Ethernet Adapter ( XE103-100NAS )

Manufacturer: Netgear
ProductGroup: CE
Binding: Electronics

Accessories:

Product Features:

Uses existing electrical wiring to extend a home network
Turns any outlet into a new network connection
Up to 85 Mbps* data rates for faster file transfers
Simple plug and play installation
Predictable and dependable network speeds

ASIN: B000GQXDY8
Release Date: 2006-07-31

Product Description

Customer Reviews:

works great out of the box.......2007-09-19

This divce will get you the net at any location, no setup needed and works all the time.

Decent Speed - Very Reliable.......2007-09-13

Being thoroughly fed up with flaky performance of wireless routers and wireless networking in general, I decided to try 4 of these out in my home as an alternative to running CAT5 through the floors and walls.

After a month or so of use, I can definitely say these are worth the $60 each I paid for them. While the speed is nowhere near the advertised 85 Mbps, it is more than adequate for, say, streaming DVDs, browsing internets, etc..

And perhaps most importantly, no dropped connections, no crappy wireless performance, utter rock solid stability, just like you were running CAT5 directly to the router.

In reading the reviews here, I noticed some claims that the unit runs hot. I haven't had this problem at all, maybe I'm not subjecting it to the same workload.

Very easy to set up and use.......2007-08-30

For whatever reason, in the type of older house I live in the wi-fi can't make it through more than one wall reliably. After days of fiddling around repositioning the wireless router and contemplating complex home rewiring schemes, I gave up and bought one Netgear XE103 Wall Plugged Adapter and one Netgear 85Mbps Adapter with 4-Port Switch (XE104). Our problems were solved within 15 minutes of opening the box (it would have been five minutes if I hadn't taken the time to install the utility software to set up a private network password). Nice work, Netgear!

Here's a couple of tips: (1) Write down the device password (on the plug side) before plugging everything in and running the password utility -- you'll need the device password to set the private network password for remote units. (2) Enter the device password for all your remote devices in the software utility before trying to set the network password using the "all devices" option (otherwise the password will only be set locally, and your remote devices will stop talking to the local device).

Powerline Adapters.......2007-08-23

I am a big fan of powerline adapters to network my PCs in my older home. I have used these Netgear Adapters to network three PCs on three different floors in my home which doesn't have any ethernet cabling in the house. I considered wireless but after reading up on these adapters thought they would be a cheaper and more practical solution to my objective. They are truly plug and play and they are easy to configure to password protect the network.

The prices I have been quoted here at Amazon have been the lowest of all the online sites I have checked.

Works great!.......2007-08-11

I couldn't get a reliable signal from my wireless g to my wife's computer, and all I did was plug in both ends and it works as expected. No configuration needed. There is no waiting for it to connect after waking the computer, as there was with the wireless. She's happy, which makes me happy. Well worth the price.

Netgear XE104 85Mbps Powerline 4-Port Ethernet Adapter

Average customer rating:

Netgear XE104 85Mbps Powerline 4-Port Ethernet Adapter

Manufacturer: Netgear
ProductGroup: CE

Netgear 85 Mbps Powerline 4-Port Ethernet Adapter General Features:
Turns electrical sockets into home network/Internet points Delivers up to 85 Mbps wired speed
Simply plug one XE104 into your router and a second XE104 into as many as 4 networked devices
Ideal for LAN gaming parties

ASIN: B000S5QE1G

Product Description

Extend your home network!This NetgearXE104 Powerline 4-Port Ethernet Adapter turns any power outlet into a 4-port home network connection. And, because there is no software to install, the XE104 is easy to set up. The XE104 adapter extends your network to provide connections without the cost or hassle of running new wiring. Just plug the XE104 Powerline 4-Port Ethernet Adapter directly into the wall outlet, and youre ready.

Average customer rating:

Powerline HD Ethernet Adapter

Manufacturer: Netgear
ProductGroup: CE

Product Description

NETGEAR's Powerline HD (High Definition) Ethernet Adapter (HDX101) with Video QoS for high quality video and gaming is an ideal solution for connecting a PC, DVR, X-Box 360 or other game console to the home network. Simply plug one HDX101 into an AC outlet near your router and the other HDX101 near the device you wish to network.

Average customer rating:

Powerline HD Ethernet Adapter

Manufacturer: Netgear
ProductGroup: CE

Product Description

MODEL- HDX101-100NAS VENDOR- NETGEAR FEATURES- Powerline HD Ethernet Adapter Turn any electrical outlet into an HD-streaming Ethernet connection! NETGEAR's Powerline HD Ethernet Adapter and Kit (HDX101 and HDXB101) for high quality video and gaming is an ideal solution for connecting a PC DVR X-Box 360 PS3 or other game console to the home network. Simply plug one HDX101 into an AC outlet near your router and the other HDX101 near the device you wish to network. Built-in Quality of Service (QoS) ensures high quality consistent performance for things like real-time HD video and audio streaming for a digital media adapter (DMA) like the NETGEAR Digital Entertainer (EVA700) or for Internet gaming and VoIP calls. With data rates up to 200 Mbps large file transfers to networked storage devices like NETGEAR's Storage Central (SC101) can be up to 12 times faster than previous Powerline networking products all with encrypted security. Includes Powerline HD Ethernet Adapter 6 ft (1.82 m) Ethernet cable Installation guide Setup CD Warranty card Support and information card.* Built-in Quality of Service (QoS) for video streaming gaming and VoIP.* Simple plug and play installation* Uses existing electrical wiring* Up to 200 Mbps data rates for faster file transfers* Predictable and dependable network speeds* Configurable QoS for advanced-users* Powerline-friendly -- easily coexists with NETGEAR's Wall-Plugged or HomePlug compatible products. -- SPECIFICATIONs ------------------------------------CONNECTORs - (1) 10BaseT/100BaseTX/RJ45 Ethernet port (1) 200 Mbps Powerline HD interfaceINDICATORS - LEDs for Unit : Power " " Powerline: Line " " Ethernet : Link/ActivityCOVERAGE - up to 5000 square foot home (typical)REQUIREMENTS - For device connection: Available RJ-45 Ethernet port

Netgear Powerline Ethernet Adapter (XE602)

Average customer rating:

Works great, anyone can set these up
New home netrwork
Plug and Play if no Encryption need
Great for XBox and PS2 system link and Internet gaming.
AWESOME!!!! One of the best products this year!

Netgear Powerline Ethernet Adapter (XE602)

Manufacturer: Netgear
ProductGroup: CE
Binding: Electronics

Other Networks | Netgear | Brands | Electronics Features | Electronics
ASIN: B00006C7ET

Product Description

No new wires - that's what NETGEAR's Powerline means to you. Powerline uses what's already there - your home's electrical outlets. Completely network your home by plugging in to the existing electrical outlets in every room, and then by plugging in to an available Ethernet port on your PC. Easily extend an existing Ethernet network to PCs in other rooms to maximize the use of all your peripherals. When combined with a Cable/DSL router, XE602 Powerline Ethernet Adapter makes high-speed Cable or DSL connection available at every outlet, in every room in your home. The Powerline network can be used to compliment your wireless network to provide network connection to the furthest reaches of your home. With a sleek and attractive silver casing, the XE602 complements your living environment and sports NETGEAR's new, easy-to-read icons.

Customer Reviews:

Works great, anyone can set these up.......2003-02-16

I got these to complete our home network for sharing a broadband connection. Since I already had ethernet cards on the machines that were upstairs (far from the cable modem) I decided to try these rather than go wireless. You will need at least two of these for them to be of use, I have one on the router and one plugged into a hub where the two remote computers are. If you do not turn on the encryption all you need to do is plug them in and you are done. I have not tried the encryption yet and do not plan to any time soon, so I don't know how difficult is is to set up or how well it works.

The only negative (and this applies to all the current powerline networking items) is they need to plug right into the wall. Given how many plugs a desktop computer needs you will need a surge protector with LOTS of plugs to free up a wall socket.

Also, one word of advice, keep this in a reasonably well ventilated area. I had mine partially covered and it got too hot and stopped working. After I uncovered it and let it cool down for a few minutes it started working again.

New home netrwork.......2003-01-05

I just bought a NETGEAR RP614 router to share the ADSL connection to the Internet between several PC's. Two years ago I had purchased one of the wireless products and had extremely slow transfer rates. I have decided to upgrade to a real "wired" network. Now with the new router I am contemplating all the Ethernet wiring that will be needed and it wont be a trivial task. But I just read those articles about using the existing power lines and the Netgear Powerline Ethernet Adapter (XE602) seems to be the solution. So thanks for all the info.

Plug and Play if no Encryption need.......2002-11-30

I works right out of box, (supposed to be that, such as all other brands...Iogear, Linksys, Phonex NeverWire 14, etc.) It also comes with two Ethernet patch cables ( and you only need one, it is good to have extra). It also looks nice with the stand and all the connections (Ethernet port and AC powerline port) are at rear panel. But, you need to install software on computer to have encryption. On the other hand, the Phonex NeverWire 14 uses one button on the device to have the encryption (that is realy really Plug and Play). That is the reason it only got my 4-star.

Great for XBox and PS2 system link and Internet gaming........2002-11-16

I have three Netgear XE602 adapters; one as the main hub off an Internet broadband router in one room and the other two in other rooms. There's no configuration required. They work right out of the box.

There's an Encryption software included in the package, but it's not necessary. I tried it and it worked well at first. But somewhere down the line, the adapters stopped recognizing each other. So, I uninstalled the Encryption tools and it worked fine since then.

I've used the XE602's to connect two Xbox's located in two separate rooms to play System Linked games. It's much easier than getting two large TV's into one room. Ever played Halo with 8 players? Now you can without cramming 8 screaming people into one room.

The XE602's also work well with broadband Internet gaming. Whenever we had guests, I would move the Playstation 2 and an XE602 downstairs and let them play Socom Navy Seals online. When they left, I simply packed everything up and moved them back upstairs. Quick and easy.

AWESOME!!!! One of the best products this year!.......2002-09-18

I bought this product recently because i wanted the computer in my basement to have internet access from my cable modem on my second floor. Putting a wire between floors wasn't very practical and wireless networkinf wouldn't work either so when I saw this I was happy but a little skeptical but after buying I realized that it worked great. It's not as fast as a wired network but it gives me speeds of up to 170 k per second downloading. So I can't complain. It was also super easy to hook up you literally just have to plug it in and it works. I have no complaints about this Product it is wonderful. The only thing is that each of the adapter is $ and one is needed for each computer. But I strongly suggest buying this if you need a networking solution.

Netgear HDX101 Powerline HD Ethernet Adapter

Average customer rating:

Netgear HDX101 Powerline HD Ethernet Adapter

Manufacturer: Netgear
ProductGroup: CE

Netgear HDX101 Powerline HD Ethernet Adapter General Features:
Turn any electrical outlet into a network connection One (1) 10/100 Ethernet port
Up to200 Mbps data transfer rate Coverage: Up to 5000 square foot home
Supports up to 16 HDX101 units on one home network

ASIN: B000UV3U0Q

Product Description

Turn any electrical outlet into a network connection! This Netgear HDX101-100 Powerline HD Ethernet Adapter is an ideal solution for connecting a PC, DVR, Xbox 360, PS3 or othergame console to the home network!It uses your home's existing electrical wiring and deliversdata transfer rates of up to 200 Mbps! The built-in Quality of Service (QoS) ensures high quality, consistent performance for applications like real-time higher definition video and audio streaming, online gaming and VoIP calls! It's easy to set up, just plug it in and start networking! Order this Netgear HDX101 Powerline HD Ethernet Adapter today!

Netgear XE104G 85Mbps Powerline Adapter Kit

Average customer rating:

Great design and performance
Poor performance if 20-30' from router
Excellent - performance as promised
Great product
Better than wireless, but don't expect too much

Netgear XE104G 85Mbps Powerline Adapter Kit

Manufacturer: Netgear
ProductGroup: CE
Binding: Electronics

Accessories:

Product Features:

Uses existing electrical wiring to extend a home network
Turns any outlet into a new network connection
Up to 85 Mbps* data rates for faster file transfers
Simple plug and play installation
Predictable and dependable network speeds

ASIN: B000I22GAW

Product Description

The XE104 85 Mbps Wall-Plugged Ethernet Switch delivers everything you need to extend the Internet to any room in your home without having to run new wires. Simply plug one XE104 into your router and another XE104 (up to 4 can be used) to any Ethernet-ready devices including a PC, a gaming console, Netgear's SC101 Storage Central, a Slingbox a DVR or Netgear's PS121 USB Print Server.And, the XE104's attractive white casing blends easily into any home decor without consuming floor or desk space. Never have to worry about a signal being lost among household interferences again. The fast 85 Mbps speed can transmit multiple video streams at once and without interruption. The XE104 wall-plugged Ethernet switch turns any power outlet into a 4-port home network connection. And, because there is no software to install, the XE104 is easy to set up. The XE104 switch extends your network to provide connections where wireless can't reach - without the cost or hassle of running new wiring. Just plug the XE104 wall-plugged Ethernet switch directly into the wall outlet, and you're ready. The XE104 connects multiple devices to your network: Game Consoles, Desktop PCs, Notebook PCs, Storage Central, SlingBox, Internet Routers.This kit includes NETGEAR 85 Mbps Wall-Plugged Ethernet Switch XE104 and NETGEAR 85 Mbps Wall-Plugged Ethernet Adapter XE103.

Customer Reviews:

Great design and performance.......2007-02-18

I have to say I'm very pleased with the product. I have two units connected on 2 different circuits and the performance is great- 50-60Mbps.
My building does have new electric wiring so perhaps it helps too.

The heat issue doesn't exist- the units feel barely lukewarm to the touch. And the 4-port switch is sweet- no extra power supplies, no wires. Great design indeed !

My only complain is that software is a bit flaky, seems to freeze and I couldn't change the password to anything but default. But the software is really not necessary anyway- it is a hardware solution. I plugged the units in and they worked !

Poor performance if 20-30' from router.......2006-12-04

I found that if you place this device in a diferent room from the router the performance drops considerably. I have a new home so the wiring is good and I only got about 11% of my original speed by putting the second device about 20'+ from my office to the great room. I called Netgear CR and this is a common experience.

Excellent - performance as promised.......2006-11-11

I used this product to replace troublesome RF-based wireless connection between my cable modem in my office and my wife's computer in the kitchen. The RF connection was spotty, weak, and undependable, despite trying various brands and configurations of RF routers.

The Netgear 104G was simple, and produced an uninterrupted, steady, strong, and fast internet connection. Yay!

Great product.......2006-11-10

I used this when the wireless had a huge dead spot. Allot easier than running CAT5. Plus it gives you flexibility to move.

Better than wireless, but don't expect too much.......2006-11-09

As most people have found with powerline ethernet, performance will depend a lot on house wiring. When I plug the two units into the same outlet, I get great, near 100BT rates (5-8MB/s). When moved across the house, this drops to 10BT rates (0.5-1 MB/s). However, unlike wireless (802.11g), these rates are very consistent and reliable. A sensible (if expensive) alternative to wireless for desktop computers.

This product is trivially easy to use. No software; it works just like a wire. (It does have some encryption capability that I didn't use -- that should only be needed in apartments with shared electrical systems.)

For those who care, my setup is a cable modem connected to a Netgear 624SC wireless router, and a network of 4 desktop Macs (iMacs G5 and Core2, two beige G3s) and an old white iBook. I also extend the wireless (for the laptop only!) using an old Netgear 614 router. The Appletalk file sharing seemed especially sensitive to the wireless flakiness, and is now rock solid.

Powerline HomePlug 85Mbps 10/100 Ethernet Adapter - Gheldmandare WP300E

Average customer rating:

Powerline HomePlug 85Mbps 10/100 Ethernet Adapter - Gheldmandare WP300E

Manufacturer: Gheldmandare
ProductGroup: CE

Turn any electric outlet to Internet connection
85Mbps/14Mbps fast spped file transfer. HomePlug compliant, interoperable with other HomePlug products
Just plug-in, no configuration, 10/100 Ethernet connection.
56-bit DES link encryption for security
Up to 3,300 feet in range

ASIN: B000H10V6U

Product Description

Gheldmandare WP300E 85Mbps Powerline-Ethernet Adapter is an easy to use in-home network product. Transfer files, share music and get on Internet through existing electric powerline. No more new wire. Connecting dead corners where wireless beams cannot reach.

Electronics:

Electronics

Electronics