... A.Support720P: a. Single cam with 720P, HDD mode, 24 frames per second b. Double cam with 720P, HD mode, ... 20 frames per second B.Double cam with 480P, Sd mode, 30 frames per second a. Single ... cam with 480P, Sd mode, 30 frames per second b. Double ... second c. Four cam with 480P, Sd mode, 20 frames per secondØ 4. Support file system:FAT16/32, Ext2, ...