Input: XVI / 3G-SDI / IP / HDTVI / HDCVI / AHD / CVBS. Connecting video cameras: 4. Cameras included: 4. Video cameras resolution: 3 MP. Microphones connection: 1. Hard disk: 1 x SATA (up to 10 Tb, not included). USB drive: 1 x USB Drive. Maximum display resolution: 3MP. The maximum recording resolution of the DVR: 1080 (25k / s). Network Interface: RJ45 10M / 100M Ethernet. Long distance transmission over UTP and coaxial cable: max. 500 m for 3Mp. Smart search for effective playback. Supports recording to USB sticks and USB drives of any size. Android / iOS: Monthly updated Xmeye software. Options: 1 DVR XVR-41PRO, 4 outdoor video cameras XW-300ECO, 1 PSU 12v / 4A, power strip, coaxial combo cable (signal + power supply) 40 meters, set of connectors for 16 pieces cable mouse.