4 channel usb dvr

4 channels video ***** maximum Display/recording rate is 25 fps under PAL Format.and 30 fps under NTSC format. â—‡ 4 screen display modes are available. â—‡ Multi alar...  view detail

USB DVR SURVEILLANCE SYSTEM (4 CHANNEL) EasyCAP 4channels Video One Audio Channel USB 2.0 DVR Syntek STK1160 Chip Cost effective way to record simultaneous Video o...  view detail

• 4 channels video input in one card, the maximum display/recording rate is 25 fps under PAL format, and 30 fps under NTSC format. • 1/4/6/8/13/16 screen...  view detail