h264 IP camera dome camera H264 (H.264) ILDVR H264 (H.264), true recording rate in combined multiples of 30, 60 or 120fps up to 750fps per system is for high quality, high compression, 100% hardware based PCI based video surveillance DVR card. There are 1-channel, 2-channel, and 4-channel 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 25 channels on a PC, 25 x30 fps = 750 fps DVR. Windows 2000 and XP based. Because of its hardware based compression, CPU usage is minimal, e.g. a 240fps system (using two 4 channel DVR cards) for 8 channels video and audio uses only 50% of a P3 800MHz CPU.