USB camera for PC or Raspberry pi WebCam

USB Camera for Raspberry Pi Model B/B+/A+
Usb driver-free camera, supports all Raspberry Pi versions
Focusing range: 20MM to very far
Lens focal length: F6.0MM
Video Resolution: 640*480
About 3.8CM long, about 1.5CM wide and about 3CM high, the line can be lengthened or shortened, up to 65cm