These units are used but guaranteed to work.  Please look over the pictures as you will receive exactly what you see.  There is an best offer option on this listing only for purchasing more than one unit.

Manufacturer Description
Model 516 is a PC-104 frame grabber that captures and transfers full-frame (640x480) video at 30 frames per second. It overcomes the low bandwidth of the PC-104 bus by using hardware compression to produce encoded MPEG-2 and MPEG-1 data streams of 440 kbits to 10 Mbits per second. It also has two audio input channels that are synchronized to the MPEG data.

You may view the Manufacturers spec sheet here http://www.sensoray.com/products/516.htm