Like every other website on the planet, SmallNetBuilder uses cookies. Our cookies track login status, but we only allow admins to log in anyway, so those don't apply to you. Any other cookies you pick up during your visit come from advertisers, which we don't control.
If you continue to use the site, you agree to tolerate our use of cookies. Thank you!

Router Charts

Click for Router Charts

Router Ranker

Click for Router Ranker

NAS Charts

Click for NAS Charts

NAS Ranker

Click for NAS Ranker

More Tools

Click for More Tools

Other Reviews

In Use and UWB USB Performance Primer

Setting up the product was uneventful. I just loaded the CD onto my notebook, installed the drivers and plugged in the dongle. The Cable Free Hub client application appeared in the System tray, showing a yellow icon (dongle enabled, but no connection). But once I plugged the power wall-wart into the hub and entered the "Product ID" from a label on the hub bottom into the client app, the icon turned green and I was connected up and ready to go.

Note: There are two labels on the bottom of the hub, each with numbers that could be the "Product ID". The Product ID is actually listed as the "ID Number:" on the serial # label above a bar code. The format of the number reveals its real identity, the hub MAC address.

Figure 4 shows the client application screen, with a connection up and running. The Product ID was entered in the area that has the Un-Register button in the screenshot.

Cable Free Client Application

Figure 4: Cable Free Client Application

Before I present my performance test results, let me equip you with some information you'll need to be an informed consumer of UWB/USB products. Belkin provided the handy diagram in Figure 5 in its reviewer's guide, which while instructive, still bears some translation.

Cable Free Client Application
Click to enlarge image

Figure 5: The Pyramid of wireless USB throughput truth

What the diagram is trying to say is that no real UWB/USB device will ever reach the pinnacle of the advertised 480 Mbps PHY rate. The best that a "highly optimized" solution could reach would be ~320 Mbps, with a more realistic expectation being the ~270 Mbps of a "standard (wired) USB solution. This isn't really a shocker since we all know by now that the number on the product box is usually a lie.

The Belkin product falls into the bottom "HWA > DWA" area of the pyramid that represents a connection that has the UWB radio connecting to the CPU via a USB 2.0 connection on each end of the connection. You can see that the additional interface slows things down considerably to a 30 - 45 Mbps range—over a factor of 10 reduction from the advertised number. Note that this will be the performance range of any of the UWB/USB "hub+dongle" products that are expected out over the next year—Wireless USB flavor included.

The next step up in performance to the 80-120 Mbps range will be products having "Native" host and/or device interfaces. An example of a "Native" device could be a Wireless USB printer—if it doesn't actually hide a "Wired" (additional USB 2.0) intermediate interface inside. So you'll have to be on your toes and pay attention to the specification details that manufacturers will hopefully provide when Wireless USB devices start appearing.

Even when those devices do hit the stores, you won't get the best possible (~200 Mbps) throughput until computers with "Native" Wireless USB host adaptors start appearing. If what I heard at CES is true, you shouldn't expect to see those until 2008 at the earliest.

More Stuff

Wi-Fi System Tools
Check out our Wi-Fi System Charts, Ranker and Finder!

Support Us!

If you like what we do and want to thank us, just buy something on Amazon. We'll get a small commission on anything you buy. Thanks!

Over In The Forums

I have been using the RT-AC87 for about 5 years now, and it has always been a rock solid router in my opinion. My friend has the opportunity to purcha...
I am having different results using the test in different browsers. I'll link some photos of my setup and some photos of rootcanary usi...
Hello, I am a novice internet user/gamer and I am experiencing some issues with my upload/download speeds, especially with the upload speeds. I have e...
So I just picked up my new router and installed the Merlin 384.11_2 version as I read once the router updates its wifi with ASUS, it will no longer be...
Im getting agitated with the constant deletion of disgruntled members complaints and one of my own recently as well with no response yet again to the ...

Don't Miss These

  • 1
  • 2
  • 3