H264 DVR Cards H264 DVR Avermedia DVR H264 DVR CARDS ILDVR H264 (H.264) true recording rates at 120, 240 or 480fps per card is for building high quality, high compression, 100% hardware based PCI or PCI-x video surveillance DVR. There is a choice of 4-channel, 8-channel and 16-channel h264 dvr cards, each video channel has a dedicated chip delivering 30 frames per second (fps) video + audio H264 hardware compression. You can install as many as 6 cards with 8-30fps channels each on a PC to create a 6x8x30 fps = 1440 fps DVR. This is Windows 2000 and XP based. Because of its hardware-based compression, CPU usage is minimal, e.g. a 20-channel D1 600fps system (using 5 8 channel h264 DVR cards) uses only 11% of a P4 3GHz CPU! The ILDVR H264 dvr compression card delivers the highest quality hardware compression with "lip sync" audio at a very reasonable price. With h264 DVR cards, you can build a 32-channelsDVR on a PC, each channel at 30 fps 704x480 pixels with audio, or a 64-channel DVR on a PC, each channel at 30 fps 352x240 pixels with audio, or a mix of the above.