Genuine Seagate Barracuda 4TB 5400 RPM Desktop Internal Hard Drive ST4000DM004

Compliant with RoHS requirements in China and Europe. High instantaneous (burst) data-transfer rates (up to 600MB per second). Native Command Queuing with command ordering to increase performance in demanding applications. Quiet operation. SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns. State-of-the-art cache and on-the-fly error-correction algorithms. Support for S.M.A.R.T. drive monitoring and reporting. Supports latching SATA cables and connectors. TGMR recording technology provides the drives with increased areal density. Worldwide Name (WWN) capability uniquely identifies the drive. Specification : Formatted capacity (512 bytes/sector)** 4000GB (4TB) Guaranteed sectors 7,81,40,37,168 Heads 4 Disks 2 Bytes per sector 4096 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density (max) 2294 kB/in Track density (avg) 540 ktracks/in Areal density (avg) 1203 Gb/in SATA interface transfer rate 600 MB/s Maximum data transfer rate 190 MB/s ATA data-transfer modes supported PIO modes: 0 to 4 Multiword DMA modes: 0 to 2 Ultra DMA modes 0 to 6 Cache buffer 256MB Height (max) 20.17mm / 0.794 in Width (max) 101.6mm ( ?¥ ?± 0.25) / 4.0 in ( ?¥ ?± 0.010) Length (max) 146.99mm / 5.787 in Weight (typical) 490g / 1.08 lb Average latency 6.0 ms Power-on to ready (typ) 10.0s Standby to ready (typ) 10.0s Startup current (typical) 12V 2.0A Voltage tolerance (including noise) 5V ?¥ ?±5% 12V ?¥ ?±10% Non-Operating (Ambient ?¥ ?¡C) ?’40 ?¥ ?¡ to 70 ?¥ ?¡ Operating ambient temperature (min ?¥ ?¡C) 0 ?¥ ?¡ Operating temperature (drive case max ?¥ ?¡C) 60 ?¥ ?¡ Temperature gradient 20 ?¥ ?¡C per hour max (operating) 30 ?¥ ?¡C per hour max (non-operating) Relative humidity 5% to 90% (operating) 5% to 95% (non-operating) Relative humidity gradient (max) 30% per hour Wet bulb temperature (max) 30 ?¥ ?¡C max (operating) 40 ?¥ ?¡C max (non-operating) Altitude, operating ?’304m to 3048m ( ?’1000 ft to 10,000 ft) Altitude, non-operating ?’304m to12,192m (below mean sea level, max) ( ?’1000 ft to 40,000+ ft) Operational shock (max) 80 Gs (read) / 70 Gs (write) at 2ms Non-operational shock (max) 300 Gs at 2ms Vibration, operating 10Hz to 22Hz: 0.25 Gs, Limited displacement 22Hz to 350Hz: 0.50 Gs 350Hz to 500Hz: 0.25 Gs Vibration, non-operating 5Hz to 22Hz: 3.0 Gs 22Hz to 350Hz: 3.0 Gs 350Hz to 500Hz: 3.0 Gs Idle 2.2 bels (typical) 2.4 bels (max Seek 2.4 bels (typical) 2.7 bels (max) Non-recoverable read errors 1 per 1015bits read Load/unload cycles 600,000 at 25 ?¥ ?¡C, 50% rel. humidity Warranty 2 Years