The Behringer U-Control UCA202 is an inexpensive (~25 EUR) small USB sound card that I bought when my older M-Audio Transit USB wasn’t working well on my Seagate GoFlex Home. I’m also planning to use it on my Buffalo WZR-HP-AG300H WiFi router. This blog post documents some of its features and tests.
This sound card doesn’t need any drivers for Win, Mac or Linux. The built in TI PCM2902E Audio Chip is supported by the major operating systems.
I took a couple of photos of the hardware. You can see them in my Picasa Album Behringer U-Control UCA202.