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NETGEAR XAVB5001 Powerline AV 500 Adapter Kit Reviewed

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Introduction

NETGEAR XAVB5001 Powerline AV 500 Adapter Kit
At a Glance
Product NETGEAR Powerline AV 500 Adapter Kit (XAVB5001)
Summary HomePlug AV compatible, IEEE 1901-compliant powerline adapter kit with Gigabit Ethernet LAN port and higher maximum throughput than HomePlug AV
Pros • Close to 100 Mbps of single-stream throughput
• HomePlug AV certified and interoperable
• Only about 20% throughput drop with distance
• Very low throughput variation in general
Cons • High throughput variation when adapters are close together (same room)

My review of TRENDnet's first-to-market TPL-401E2K 500 Mbps powerline adapter kit ended with a question (actually two). Did TRENDnet's product really have design issues that caused its less-than-impressive performance? Or was Atheros' AMP 500 "500 Mbps" HomePlug AV compatible technology still not fully baked?

NETGEAR was finally able to get me an XAVB5001 kit (direct from Taiwan, no less). And to kill the suspense, it performs better than TRENDnet's adapters. But it also seems that Atheros still has some tuning to do, to bring out the full potential of its "500 Mbps" powerline technology.

The TRENDnet article has all the background on how Atheros' AMP 500 works, so I won't repeat it here. The gist is that it uses almost twice the spectrum that 200 Mbps HomePlug AV uses. So it can achieve higher throughput, if those higher frequencies can make it through your home's AC wiring.

The inside photo in Figure 1 of one of the two XAV5001 adapters in the XAVB5001 kit, shows an impressively heavy heatsink that's coupled to the main devices via a thick thermal pad. The heatsink isn't tied down; it is held in place only by the top cover.

This heatsink, plus generous use of vent grilles on all sides of the adpater should help keep the devices inside within proper operating range, even if the front cover of the adapter gets a bit warm to the touch.

NETGEAR XAVB5001 inside

Figure 1: Inside the XAV5001

Removing the heatsink reveals a familiar chipset (Figure 2): a large Atheros AR7400 MAC / PHY, flanked by an AR1500 Analog Front End (AFE) to its upper right and an Atheros AR8021 Gigabit Ethernet PHY to the lower left. If the XAV5001 hews closely to Atheros' reference design, there will be 16 MB of RAM and some amount of flash sitting on the bottom of the board.

NETGEAR XAV5001 board detail

Figure 2: XAV5001 board detail

There is actually another board on the very bottom of the package, connected to this top board by a 10 pin connector. The bottom board is probably where a lot of the AC line coupling and power conversion circuitry sits.

Setup And Administration

HomePlug adapters are factory set to plug in and go, and the pair of XAV5001's did. I had no problem with the adapters auto-negotiating Gigabit links with my Acer Aspire 1810T test notebook with Atheros AR8131 PCI-E Gigabit Ethernet controller and NETGEAR GS108 Gigabit switch.

Figure 3 shows a summary of the adapter's lights. Note that the three color signal quality light seen on some HomePlug AV roundup adapters and the TRENDnet TPL-401E is also incorporated into this product. Looks like a standard feature of the Atheros chipset.

NETGEAR XAV5001 ports and indicators

Figure 3: XAV5001 ports and indicators

You also get a Security button that you can use to change the default "HomePlugAV" 128 bit AES encryption key. This is a good idea if you live in a dorm or apartment building where your powerline signal could stray beyond your home. The button doesn't change the security encryption strength, just the encryption key.

I didn't find a utility on the CD that came in the box. So I hit the XAVB5001 support page to download the 2.0.0.8 utility. I also downloaded the XAV5001 Firmware Upgrade Utility v2.0.0.0 while I was at it.

The utility is much fancier than TRENDnet's, but does essentially the same thing. I didn't get prompted to install WinPCap as I did when installing TRENDnet's utility. But perhaps that could have been because it had been previously installed.




Related Items:

NETGEAR XAVB5101 Powerline Nano 500 Set Reviewed
HomePlug AV 500 Adapter Roundup
Actiontec PWR500 and TRENDnet TPL-406E2K Powerline Adapters Reviewed
500 Mbps Not! : TRENDnet TPL-401E2K 500 Mbps Powerline AV Adapter Kit
How We Test Powerline Products

User reviews

Average user rating from: 4 user(s)

NOTE! Please post product reviews from actual experience only.
Questions, review comments and opinions about products not based on actual use will not be published.

User Rating    [Back to Top]
Overall: 
 
4.8 Features :
 
5.0 Performance :
 
5.0 Reliability :
 
4.5
 
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latency issues

Overall rating: 
 
4.3
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
3.0
Reviewed by mark
April 13, 2011
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Also own a 200mbps Linksys Adapter which runs at 7.8MB/s with latency of 3.5ms.

Netgear dapter runs at 14.5MB/s, best latency is 2ms, but not conistent like Linksys, it jumps by as much as 100ms and remains that way for a while.

Until this is fixed my older Linksys PLK300 is much better for gaming and VOIP.

Netgear, please resolve this!

 

Great review + Question

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by Brian
April 13, 2011
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Great review! I'm wondering how well it works when there are more than 1 set running? I have 3 rooms to bring into my network.

 

Fantastic Review - everything i wanted to know

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by MojoMohambo
April 08, 2011
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this review is outstanding. legit scientific comparison of the key measurables is all i ever really want to see. no rhetoric and garbage.
Well done!

 

Informative review

Overall rating: 
 
5.0
Features:
 
5.0
Performance:
 
5.0
Reliability:
 
5.0
Reviewed by Rob
February 21, 2011
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Tim, thanks so much for this review. I tested out a friend's set of 85Mbps Netgear powerline adapters and while they did well for 720p media, they choked quite often on 1080p media. I've been following the new 500Mbps devices closely but hadn't seen any useful or in-depth review of them until I came across yours. I read your previous review of the 500Mbps TrendNet adapters and was disappointed about performance. I surely hope it's just a firmware issue there. I have a TrendNet TEW-639GR and I have to say it's top notch, so I'm hoping it's not the hardware design. I looked at their site and the last firmware they have for the 500Mbps adapters is two months old. *sigh*

If/when TrendNet released new firmware, are you going to test their 500Mbps adapters again? From your review I'm leaning heavily towards the Netgear 500Mbps, they seem to have their act together.

Thanks again.