Hikvision English Version DS 7204/08/16HGHI F1/N 1080P 4/8/16CH CCTV XVR for Analog/HDTVI/AHD/IP Security Camera 1SATA|Surveillance Video Recorder| - AliExpress
DVR Review - Hikvision DS-7204 4 Channel DVR - Digital Video Recorders - CCTVForum.com
Hikvision DS-7204HFHI-ST/A Digital video recorder (DVR) Specifications | Hikvision Digital video recorders (DVRs)