... h.264 dvr card 1,video input:4carema 2,audio input:4carema 3,high definition image 4,brand :Macro-video 4ch NXP7130 chipset h.264 dvr ... card Main feature: 1,DVR CAR, CAPTURE CARD,2,3G Mobile phone ... : 352 x 288, 528 x 3848, Compression Format: H.264. 9,Compression Ratio: 50 –120MB per hour per channel10 ... : 9.0 or above 4ch NXP7130 chipset h.264 dvr card