EverFocus ECOR264 4TB. Video compression formats: H.264, Video capturing speed: 480 fps, Playback resolutions supported: 800x600, 1280x1024. Hard drive capacity: 2048 GB. Compatible operating systems: Linux. Power requirements: 12V DC. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 20 - 80 %