Saturday, August 6, 2011

ZyXEL Powerline AV 500 Mbps 4 Port Gigabit Switch Wall-plug Adapter with PLA4205 Powerline AV 500Mbps (PLA4225KIT)


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Powered by the latest IEEE 1901 technology and four Gigabit Ethernet ports, the ZyXEL PLA4225 500 Mbps Powerline 4-Port Gigabit Switch provides an all-in-one solution for users looking to enjoy multiple HD streams, multiplayer gaming and Web surfing simultaneously. When used alongside a Powerline Ethernet Adapter, the PLA4225 makes it simple to connect up to four media devices such as HDTVs, Blu-ray players, DVRs, and game consoles to your home network through any electrical outlet in your house. Advanced Quality of Service (QoS) features improve the quality of streaming multimedia applications such as triple-play services, HD video streaming, high-speed Internet access and VoIP. The PLA4225 automatically enters power-saving mode when an inactive Ethernet connection is detected, reducing energy consumption by 80% when compared to Powerline adapters without this function. Data transmission is protected by 128-bit Advanced Encryption Security (AES) to ensure a secure connection to the Internet. There’s no complicated setup or software required - the PLA4225 makes network security as simple as pushing a button.

This review is from : ZyXEL Powerline AV 500 Mbps 4 Port Gigabit Switch Wall-plug Adapter with PLA4205 Powerline AV 500Mbps (PLA4225KIT)
Streams uncompressed Blu-rays to my WDTV Live Plus . OVERVIEW: I bought these in hopes that I could stream my Blu-ray collection (uncompressed) to my WDTV Live Plus from a NAS drive (more details at end of review). A lot of information out there on the Interwebs said this was nearly impossible, but I was tired of having to compress all of my Blu-rays with Handbrake in order to stream them over wireless (and I still had stuttering). I saw them for a good price on another site, so I decided to give them a try anyway. To my surprise, they actually worked!INSTALLATION: This kit ships with two powerline adapters, two (too short) ethernet cables, a setup CD, and some "light" documentation. There is a utility that installs from the CD that can report the transmit and receive speeds of your adapters, which are dead easy to install--just plug both into a wall outlet, then an ethernet cable into each one and your router/internet-enabled device. They find each other automatically and start talking almost instantly. There is also a button on the side of each adapter labeled "ENCRYPT" that you can use to form a secure connection between them so your neighbors can't get on to your network. (Because this would require them sharing your electrical wiring AND having powerline adapters, the possibility is remote so I didn't fool with it.) When I fired up the utility (installs from the CD), it reported that I was only getting about 50 Mbps throughput. Unfortunately I did not have any spare electrical outlets, so I had to plug the router-end adapter into a wall tap. I moved the other one (connected to the WDTV) to a bare outlet and the utility then reported about 123 TX and 111 RX throughput. Although this is a fraction of the rated speed of 500 Mbps (which you'll never come close to in real life), I fired up some test 1080p MKVs with constant bitrates (the "Birds test files," which you can Google to find) to check the actual throughput. I was pleasantly surprised to be able to stream up to 70 Mbps without issue, and then a couple of m2ts files straight from a Blu-ray folder structure as well. Since the maximum spec'd bitrate of Blu-ray is 54 Mbps, I am in the clear. And considering that I'm not even following the instructions (since I'm not plugging both adapters directly into the wall), that's pretty amazing! As a point of reference, I also have a pair of MoCA adapters (these: NETGEAR MCAB1001 MoCA Coax-Ethernet Adapter Kit (Black) connected to a Boxee Box in the living room, and they provide about the same throughput.A COUPLE OF CAVEATS: Powerline performance is highly dependent on your home's electric wiring. Apparently if you have each adapter on a different phase (i.e. on switches on opposite sides of your breaker box) then that can significantly reduce throughput. I am lucky, because although my router and WDTV are in separate rooms, they are not only on the same phase, but even the same breaker switch. This means that there is less wiring between the adapters and therefore less attenuation in the signal.FIRMWARE INFO: I have an old pair of 1st-gen powerline adapters (Netgear 85Mbps Powerline Network Adapter XET1001) that can't get anywhere near to streaming even compressed movies, so obviously powerline has come a long way. These Zyxels ship with firmware v5.2.0, which seems to be newer firmware than the Trendnet 500 Mbps adapters that smallnetbuilder gave mixed reviews to. In fact, I believe it is newer than the Netgear 500 Mbps that got more positive reviews. I'm pretty sure that all the currently available 500 Mbps adapters are based on the same Atheros chipset, which means that the only variable among them would be the firmware version.Here are a few relevant details about my network setup:ROUTER: D-Link DIR-655, gigabit (D-Link DIR-655 Extreme N Gigabit Wireless Router)
MEDIA SERVER: WD MyBook Live 3TB NAS (Western Digital My Book Live 3 TB Personal Cloud Storage Drive), connected w/gigabit ethernet to router
MEDIA RECEIVER: WDTV Live Plus (Western Digital WD TV Live Plus 1080p HD Media Player), running aftermarket WDLXTV firmware (v5.0.0)
STREAMING PROTOCOL: NFS (not the more common SMB, also known as Windows Sharing. With SMB I can only get about 30-40 Mbps throughput over these adapters, which is typically not enough to stream Blu-rays). The MyBook has NFS built in, but the WDTV can only stream over NFS with WDLXTV firmware.
STREAMING FILETYPE: 1080p .m2ts (uncompressed Blu-ray) and lossless MKV (created from said Blu-rays)
ZyXEL Powerline AV 500 Mbps 4 Port Gigabit Switch Wall-plug Adapter with PLA4205 Powerline AV 500Mbps (PLA4225KIT) Reviews
Solid Powerline Adapter . I bought the PLA4205K from [...] a week ago because it was $15 cheaper that Amazon.com. The kit came in last night. I plugged 1 unit in the upstair den where I have my router/Internet connection and plugged the other unit in the downstair kitchen where I have a VoIP phone. I was able to dial out and receive VoIP phone calls with no problem. Then, I unplugged the VoIP device and plugged in my Macbook Pro to test the effective file transfer speed. I was able to get around 6-7 MB/sec, which is much faster than what I can get from wireless connection through my 5GHz 802.11n Airport Extreme. With the Airport Extreme, I can only get about 1.2MB/sec. Consider the fact that the power outlets are not on the same circuit and signals have to go through the main power panel, it is pretty solid performance to get 6-7MB/sec. Most of the other Powerline adapters can only deliver 1-2MB/sec.
ZyXEL Powerline AV 500 Mbps 4 Port Gigabit Switch Wall-plug Adapter with PLA4205 Powerline AV 500Mbps (PLA4225KIT) Opinions
Why didn't I try this sooner? . This was one of those rare times when a technology just did what it was supposed to right out of the box.I have an Xbox 360 that sits in the opposite end (on a different floor) of my house from my wireless router and it never got more than 2 bars of signal. I just plugged one of the PLA5205kits into the wall by my router, the other by my Xbox, connected the ethernet cables, and it instantly worked.Plus, as it advertises, it was a great connection speed for me. Netflix on the Xbox streamed at HD quality and the initial buffer was short. This was a perfect solution to solve the gap in my wireless network coverage.


Feature ZyXEL Powerline AV 500 Mbps 4 Port Gigabit Switch Wall-plug Adapter with PLA4205 Powerline AV 500Mbps (PLA4225KIT)

  • Starter Kit includes: 1 PLA4225 (Powelrine AV 500mbps 4-port Gigabit Switch), and 1 PLA4205 (Powelrine AV 500 Gigabit Adapter)
  • Blazing-fast 500 Mbps speeds for lag-free HD video streaming and gaming
  • Plug-and-play connection for to up to four media devices at Gigabit wire speed
  • IEEE1901 compliant and compatible with HomePlug AV
  • QoS enhances media streaming quality
  • Power-saving mode reduces wasted energy




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Product Details

EAN : 0760559119737
UPC : 760559119737
MPN : PLA4225KIT
Brand : ZyXEL
Color : White
Weight : 2 pounds
Height : 5 inches
Length : 10 inches
Width : 7 inches
Binding : Personal Computers
Manufacturer : ZYXEL
Model : PLA4225KIT
Publisher : ZYXEL
Size : AV Adapter w/4 Gig Ports Kit
SKU : SY-PLA4225KIT
Studio : ZYXEL

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