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

The Pitch and Product

BuffaloTech 54 Mbps Wireless USB 2.0 Keychain Adapter

BuffaloTech 54 Mbps Wireless USB 2.0 Keychain Adapter
Summary Flash-stick-style USB 2.0 802.11g client adapter that carries and installs its own driver and client manager application. Supports Buffalo's AOSS auto-install system
Update None
Pros • Leave the install disk at home
• Virtually no throughput hit with WEP or WPA
Cons • Client Utility doesn't cooperate with Zero Config
• Installs on some Windows versions can be confusing

Buffalo Technology's WLI-U2-KG54-AI 54Mbps Wireless USB 2.0 Keychain Adapter distinguishes itself from the rest of the "keychain" or "USB flash-key" styled wireless adapters by being the first to automatically install its drivers and Client Utility when first connected to a Windows computer.

The AI is also the first Buffalo product to be based on a chipset from Taiwan-based RaLink, the RT2500USB to be exact. It's also the second Buffalo 11g product to not use a chipset from Broadcom. (The first was the WLI-USB-G54 which converted from Broadcom to Conexant PRISM back in March [related story].)

Buffalo Tech WLI-U2-KG54-AI board

Figure 1: The AI's board
(click on the image for a larger view)

The AI's white plastic package is about the size of a disposable butane lighter, but somewhat slimmer. It has a wireless activity (ACT) indicator that lights only during transmission, a tiny recessed switch to disable the auto-installation feature and a feature that should allow you to attach a lanyard or tiny keychain ring, neither of which is included. Buffalo does throw in a USB extender cable for use with hard-to-reach or too-closely-spaced USB ports.

To cut to the chase, I inserted the AI into a newly SP2-upgraded XP desktop machine and sat back to see what happened. The install was fairly uneventful, with the XP Notification Area / System Tray popping up two "Installed and Ready" notifications, one after the USB adapter install and the other after the wireless driver install.

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

I just saw this. I wonder how many Wi-Fi devices use Realtek chips?
HiI recently bought an Asus RT-AC68U to take over router duties from a crappy cable modem provided by my ISP. Since some reorganizations in the summer...
Hey guys. For some reason the router keeps defaulting to 100mbps on my desktop PC. Here's what I know so far...1) Not a cable issue, cable works fine ...
‚Äč We take a look at how five Wi-Fi 6 routers perform with a Wi-Fi 6 client.Read on SmallNetBuilder.
The N66U is my main router/wireless, it is hardwired to an access point. This all worked until I did a firmware update last night. I can not figure ou...

Don't Miss These

  • 1
  • 2
  • 3