Note:
1. For recording resolution of 704 x 480, Core 2 Duo CPU is recommended.
2. Currently @-Witness DVR boards are not compatible with VIA-series and ATI-series chipset Motherboards. 
3. For PCI Express capability issue that we strong recommend to use the Intel Brand Motherboard when using CP-2160RD.
4. This card only works when it connects to PC's power.
5. To install two CP-2160RD cards, ensure the PC power supply is 350 Watts or above