Panasonic WJ-HD716 4TB. Video compression formats: H.264, Display resolution: 720 x 576 pixels, Playback resolutions supported: 720 x 480 px 720 x 288 px 720 x 240 px 320 x 240 px. Hard drive interface: Serial ATA, Hard drive capacity: 4000 GB. Compatible operating systems: Windows Vista Business (32-bit) Windows XP Home SP2+ Windows XP Professional SP2+. Power requirements: 120 - 240 V, 50 - 60 Hz, Power consumption (typical): 130 W. Operating temperature range (T-T): 5 - 45 °C, Operating relative humidity range: 0 - 85 %