The Digi-Master 8 and 16-Channel Triplex DVRs give you the same intuitive setup and operation platform as their popular, full-featured 4-channel DR4N model. The units will accept up to 1.5 TB of internal storage (3xHDD) for more than 60 days recording at 704x480 resolution. MPEG-4 compression saves high-quality images with smaller file sizes and allows more efficient transmission over Ethernet. The USB-2 port and optional CDRW drive assure quick and easy archiving. The Digi-Master is designed to work into the existing CCTV system or is available in convenient preconfigured kits.