Samsung Techwin 4 Channel HD Security System, 1TB HDD, 4 720P Weatherproof Bullet Cameras, 82' Night Vision Smartphone and PC ready. View Anytime/Anywhere! Remote viewing on Internet Explorer or iPOLis mobile. HD (CH 1~4): Supports 720P/960H/D1/HD1/CIF recording 4 IP66 720p HD weatherproof security cameras (SDC-8440BC) 1TB of storage USB 2.0 and records using H.264 compression technology. Backwards compatible utilizing previous versions of Samsung's previous BNC camera models; however, the DVR must be set to utilize standard definition cameras prior to utilizing previous model cameras.