WD My Book Thunderbolt Duo 4TB External Drive

WD My Book Thunderbolt Duo 4TB External Dual Hard Drive Thunderbolt WDBUSK0040JSL-NESN

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Revolutionary Thunderbolt technology
Two Thunderbolt ports for high-speed multi-tasking
Dual-drive storage system with user serviceable drives
User-selectable RAID 0/1
Thunderbolt cable included

Specifications Overview

Model	WDBUSK0040JSL-NESN
Capacity	4000 GB
Disk Type	HDD 7200RPM
Interface	Thunderbolt
Portable	No

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C