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

Wireless Reviews

Wireless Performance

Although I have a USB2-equipped desktop machine, the notebook that I normally use for client testing remains at USB 1.1. But not to be kept from my appointed throughput-testing rounds, I just connected a Belkin F5D7130 AP [reviewed here] to my notebook and left the USB-G54 lashed to my 2.4GHz Pentium4 desktop, sitting where the test AP normally is. Figure 2 shows the test results.

BuffaloTech WLI-USB-G54 - Four location throughput

Figure 2: Four location throughput
(click on the image for a full-sized view)

I should note that you can't directly compare these results - or any results going forward - with those of previous reviews before October 1, 2003. My recent move meant setting up new test locations, which are described here.

The new Location 3 test is the only one done from a point one floor below the stationary AP location. The poorer performance for Location 3 might be due to the unusual antenna design of the USB-G54, but it could just be the way the radio waves crumble in the new test location. Only time - and more product testing - will tell for sure.

I also ran tests in WEP128, WPA-PSK / TKIP, WPA-PSK / AES modes and found a significant throughput loss (24%) only in WPA-PSK / TKIP. All other modes had variation within the accuracy of my test methods. This is consistent with what I've found on other Broadcom-based products, and does put you at a throughput disadvantage if you mix the USB-G54 (or any other Broadcom-based client supporting WPA) with WPA-enabled APs or wireless routers based on GlobespanVirata (Intersil) or Atheros chipsets.

The best-case average throughput of about 20Mbps is consistent with Broadcom-based 11g products based on Ethernet or CardBus interfaces. So it appears that - unlike 802.11b USB1.1 adapters - you won't pay a throughput penalty for connecting via USB 2.

You will lose throughput, though, if you use the adapter with a computer supporting USB 1.1, as Figure 3 shows.

BuffaloTech WLI-USB-G54 - Throughput connected to USB1.1

Figure 3: Throughput connected to USB 1.1
(click on the image for a full-sized view)

Smooths things right out, doesn't it? Although you wouldn't buy the USB-G54 specifically to attach to a USB 1.1-equipped machine, it's nice to know that you at least have the option.

802.11g Wireless Performance Test Results

Test Conditions


- WEP encryption: DISABLED
- Tx Rate: Automatic
- Power Save: Disabled
- Test Partner: Belkin F5D7130 Access Point

Firmware/Driver Versions

AP f/w:
2.00.01
Wireless client driver:
WinXP 5.1.3538.0
Wireless client f/w:
No Info

Test Description SNR (dB) Transfer Rate (Mbps) Response Time (msec) UDP stream
Throughput (kbps) Lost data (%)
Client to AP - Condition 1 0 20.4
[No WEP]
19.9
[w/ WEP]
1 (avg)
2 (max)
499 0
Client to AP - Condition 2 0 13.2 1 (avg)
3 (max)
499 0
Client to AP - Condition 3 0 2.8 3 (avg)
6 (max)
347 29
Client to AP - Condition 4 0 11.7 2 (avg)
3 (max)
499 0
See details of how we test.

More Wireless

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

Greetings fellas- I have read all the threads with the 86u hardware issue with the wireless channel and wanted some feedback and help from you guys if...
Hi! This is my first time with an ASUS router (AX-11000). I use and like to use MAC address filtering (yes, I know what some may say, but that isn't t...
I am now on my third replacement AC5300 router and about to give up on ASUS completely. I used to have a Netgear Nighthawk AC2300 with a matching exte...
Hi, currently running Merlin on a AX3000 and a AC68U as a mesh node. I really need extra ethernet ports and recently discovered the RT-AC88U had 8!Any...
My router is saying the above new firmware is available, but I don't see it listed on the Asus website and there doesn't appear to be any release note...

Don't Miss These

  • 1
  • 2
  • 3