4 TB SATA III (6 Gb/s) 3.5" HDD (7200 rpm)Read SpeedMaximum: 250 MB/sWrite SpeedMaximum: 250 MB/sRead SpeedMaximum: 250 MB/sWrite SpeedMaximum: 250 MB/sBuffer256 MBHDD SpecsDisk Sector Format512eNoise Level30.0 dB (Active)28.0 dB (Idle)Reliability / Data IntegrityEncryptionNoEndurance (Total Bytes Written)550 TBMean Time Between Failures (MTBF)2.0 Million HoursNon-Recoverable Read Errors per Bits Read1 in 1015ElectricalPower Draw8.7 W (Active)5.5 W (Idle)1.0 W (Standby)Supported Voltage5 VDC, 12 VDCCurrent2.0 A at 12 VDCEnvironmentalOperating Temperature32 to 97°F / 0 to 65°C

Temperature-40 to 158°F / -40 to 70°COperating Shock70 G / 2.0 ms

Shock300 G / 1.0 msOperating Vibration12.5 G / 10 to 1500 Hz

Vibration2.27 G / 10 to 500 HzGeneral

5.79 x 4.01 x 1.03" / 146.99 x 101.85 x 26.11 mm

1.4 lb / 650 gPackaging InfoPackage

1.735 lbBox

(LxWxH)9.2 x 6.1 x 3"