Western Digital My Book Studio USB 3.0 External Drive 4TB WDBCPZ0040HAL

Product SpecificationsInterfaceUSB 3.0 and USB 2.0Performance SpecificationsSerial Transfer RateUSB 3.0Serial Bus Transfer Rate (USB 3.0)5 Gb/s (Max) USB 2.0Serial Bus Transfer Rate (USB 2.0)480 Mb/s (Max)Physical SpecificationsCapacity4 TBPhysical DimensionsEnglishHeight6.50 InchesDepth5.3 InchesWidth1.90 InchesWeight2.69 Pounds MetricHeight165 mmDepth135 mmWidth48.0 mmWeight1.18 kgEnvironmental SpecificationsTemperature (English)Operating41° F to 95° FNon-operating-4° F to 149° F Temperature (Metric)Operating5° C to 35° CNon-operating-20° C to 65° CElectrical SpecificationsCurrent RequirementsPower DissipationAC Input Voltage100-240 VACAC Input Frequency47-63 HzCompatibilityOperating SystemCompatibilityMac/Windows As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. A