This is a very common webcam, the Vimicro ZS211 is known under many different names and the specs change a bit between branding. This Chinese camera was made to order in large batches and was branded by company that put the order in, hence why it is under dozens of names.
CMOS Chip Type: High resolution CMOS sensor
Resolution: Large window capture size: 2304 x 1728 - 320 x 240
Video data format: 24 bit true colour
Interface: USB 2.0
Frame rate: (320 x 240) at 30fps (CIF),(1600*1200) 15fps (VGA)
Support: Live Messenger, Yahoo Messenger, Skype
Focus range: Manual focus (focusing : 5cm to infinity)
Lens: 3 layer glass lens.
Built-in Technology: Mic built-in
Signal to Noise Ratio: <48dB
Dynamic Range: <72dB
Brightness: Auto brightness adjustment
Colour: Auto colour compensation, Auto white balance.
S/N Ratio: 1/3inch
Compliant Standards: CE, FCC, WEEE, RoHS
USB ID: 0AC8:0302 = USB\VID_0AC8&PID_307B