ZyXEL Home Plug Powerline Ethernet Adapter (200 Mbps)

Manufacturer: ZyXEL Communications Corp. Part number: PLA-400

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Bottom Line:: The Zyxel PLA-400 is a compelling alternative to a wireless home network, but the competition offers faster throughput for about the same price.

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CNET editors' review

ZyXEL Home Plug Powerline Ethernet Adapter (200 Mbps)

price range: $72.24 - $89.99

Reviewed by: Felisa Yang
Edited by: Michelle Thatcher
Reviewed on: 02/07/2007
Released on: 11/01/2006

The good: Dead easy to setup and maintain; 128-bit AES encryption; utility offers security features, such as password protection; QoS for latency-sensitive applications; generous warranty period.

The bad: Pricey; slower throughput than the competition.

The bottom line: The Zyxel PLA-400 is a compelling alternative to a wireless home network, but the competition offers faster throughput for about the same price.

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If your current 802.11g network can't cut the mustard for streaming HD content or you're simply tired of wrangling a wireless network (maybe your house isn't well suited to it), you have another option: power-line networking. The Zyxel PLA-400 HomePlug AV Ethernet Adapters let you use your home's existing electrical system to create a data network that can support enough throughput for demanding applications such as HDTV and VoIP. With each adapter costing about $95 (you can find them online for less) and each network requiring a minimum of two adapters to start, though, it's not an inexpensive solution. And in our Labs' test, we found the PLA-400 to be slower than a similar product from Netgear.

Power-line networking lets you take advantage of a preexisting home network--your electrical system--to transmit data between networked devices. Each electrical outlet serves as a node on the network and any device, such as a digital media adapter or a PC, that's connected to the electrical system via an adapter is part of the LAN. Zyxel's previous iteration of the product, the PL-100, is based on the HomePlug 1 spec. The PLA-400 device is based on the new spec--HomePlug AV--which specifically address the need for QoS for latency-sensitive services such as HDTV and VoIP (HomePlug AV is backward-compatible with HomePlug 1). The theoretic throughput of HomePlug AV products is 200Mbps, but real-world performance is pegged at around 100Mbps.

The Zyxel PLA-400 uses the same design as its predecessor, the PL-100. The compact silver-and-black brick houses four LED indicator lights on the front and a power port and an Ethernet port on the back. The bottom of the adapter has two holes for wall-mounting the device.

Setting up the PLA-400 is as simple as can be. To start, you'll need at least two adapters: one for your router and another for whatever device you're networking. In our case, it was simply a laptop computer. Connect the first adapter to one of your router's LAN ports and plug it in. Connect the second adapter to your device of choice via Ethernet cable and plug that one in to an outlet as well, and voila, you have a power-line network. Zyxel includes a configuration utility on CD, but you don't need it to get started. However, you will need to install it if you want to change the default password or monitor the other devices on your system. Because all the adapters on a network must use the same password to communicate, all PLA-400 adapters come with the same default password. For security reasons, however, it's recommended that you change it. (In some apartment buildings, for example, it's possible for multiple units to share an electrical system. Anyone on the same electrical system could plug in an adapter from the same maker and access your network if they know your password.) For security during transmission, the PLA-400 uses 128-bit AES encryption. Zyxel's site shows that the PLA-400 can currently support up to 16 total devices on the network, but a future firmware upgrade will allow it to support a whopping 64 devices, so fear not if you have multiple networkable gaming consoles, computers, VoIP phones, and printers or NAS drives.

Though Zyxel advertises the PLA-400's theoretical maximum throughput as 200Mbps, our Labs' test showed actual throughput to be much lower: an average of 35.56Mbps. This is an improvement over the PL-100's throughput but still behind the 52.7Mbps posted by the Netgear HD Powerline Ethernet Adapter. Still, 35.56Mbps is more than enough throughput to stream HD content to your home entertainment system.

Zyxel supports the PLA-400 with a limited two-year warranty. Phone support is available weekdays from 8 a.m. to 5 p.m. PT, and Zyxel has improved upon its previous support line by offering a toll-free phone number. You can also fill out a form on Zyxel's Web site to request assistance from tech support.

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Specifications

Manufacturer: ZyXEL Communications Corp.
Part number: PLA-400
Description: ZyXEL's Powerline Series is an access extension solution to have your house completely networked with existing power lines. Thanks to the advanced HomePlug AV Technology, the PLA-400 is capable of transmitting data at up to 200Mbps. It allows you to share network resources and enjoy Internet access through secure high-speed data connection over the house power lines you already have. The inherent advanced QoS features of HomePlug AV make the PLA-400 an ideal solution for in-home distribution of HDTV and VoIP streams. HomePlug AV is designed to support the high-bandwidth and low-latency demands of several simultaneous streams of video, audio and data. With the 128-bit Data Encryption Security (AES) feature, the PLA-400 provides secure network connection for Internet access and network resource sharing. Just enjoy fast Internet surfing experience and secure file transfer and leave the sweats to the PLA-400.

General
Width 4.4 in
Depth 4.2 in
Height 1.1 in
Weight 6.6 oz
Miscellaneous
Miscellaneous compliant standards CE-LVD, FCC, RoHS, UL, CE

Environmental Parameters
Min Operating Temperature 32 ?F
Max Operating Temperature 113 ?F
Humidity Range Operating 10 - 90%
Networking
Networking type Bridge
Data link protocol Ethernet, Fast Ethernet, HomePlug AV (HPAV)
Data transfer rate 200 Mbps
Features 128-bit encryption

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