Western Digital My Book External hard drive in Black 4 TB PCI Express x16 4.0 give your visuals a boost give your visuals a boost with optional NVIDIA® GeForce® MX550 with 2GB GDDR6 discrete graphics The latest AMD Ryzen™ 7 4800H processor is faster than the previous generation 1 x64 Plug and Play Yes Cable lock slot type Kensington Cable lock slot Yes Password protection Yes Security algorithms 256 bit AES Product colour Black Power AC adapter output voltage 12 V External power adapter Yes Bus powered No Operational conditions Storage temperature (T T) 20 65 °C Operating temperature (T T) 5 35 °C Weight & dimensions Weight 1 kg Height 170 shock tolerance and long term reliability
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