Input Type: D-Type: DB15x2 Video Input(s): 1, 2, 4, 6, 8, 10 ... Input(s): 1 Channel Support Windows XP/Vista Specification:Input Type D-Type: DB15 x 2Video Input(s)1, 2, 4, ... fps (NTSC), 16fps (PAL).Video Resolution 320x240, 640x240, 640x480, 640x480sw Compression Format Wavelet, MPEG-4 OS Supported Windows2000 / 2003 / XP / Vista ... .2 (Language: English/Portuguese/Spanish) Max 16 Channel D-Type DVR Card