Sensoray
I/O System on a PCI Express board
Sensoray’s small form factor PCI Express board allows users to capture four channels of video and four channels of stereo/mono audio at the same time. The product features super low latency video preview concurrent with compressed capture, an extended temperature range, text overlay and can support both stack-up and stack-down. Each video channel can capture at 30 fps for NTSC or 25 fps for PAL. The unit can produce two different video streams from a single composite video input-one stream can be a low-latency stream and the other compressed, or both compressed.
http://www.sensoray.com/products/826.htm