Hikvision DVR(digital video recorder) 4-channel
Hikvision DS-7204H-S is a 4 channel digital video recorder that features: H.264 video compression CIF resolution real-time recording Up to WD1(960*576) resolution recording HDMI and VGA output at up to 1920×1080P resolution Dual-stream Up to 4-ch synchronous playback NTP, SMTP, NFS, UPnP and iSCSI protocols