![Amazon.com: Western Digital 4TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0040HBK-NESN : Electronics Amazon.com: Western Digital 4TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0040HBK-NESN : Electronics](https://m.media-amazon.com/images/I/31fb4AS9DbL._AC_.jpg)
Amazon.com: Western Digital 4TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Backup Software - WDBBGB0040HBK-NESN : Electronics
![WD 4TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 - WDBFBE0040JBK-NESN WDBFBE0040JBK-NESN | Fast Server Corp. www.srvfast.com WD 4TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 - WDBFBE0040JBK-NESN WDBFBE0040JBK-NESN | Fast Server Corp. www.srvfast.com](https://www.srvfast.com/media/catalog/product/cache/73f179befb2b664ec3794b7759101d79/4/1/41p5-6mrdtl._sr500500__gmlysz4o3t5dichu.jpg)
WD 4TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 - WDBFBE0040JBK-NESN WDBFBE0040JBK-NESN | Fast Server Corp. www.srvfast.com
![Refurbished: WD My Book Thunderbolt Duo 4TB 3.5" Thunderbolt Dual-drive Storage System Model WDBUPB0040JSL - Newegg.com Refurbished: WD My Book Thunderbolt Duo 4TB 3.5" Thunderbolt Dual-drive Storage System Model WDBUPB0040JSL - Newegg.com](https://c1.neweggimages.com/productimage/nb640/22-236-713-02.jpg)
Refurbished: WD My Book Thunderbolt Duo 4TB 3.5" Thunderbolt Dual-drive Storage System Model WDBUPB0040JSL - Newegg.com
![Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics](https://m.media-amazon.com/images/I/81ixV1km5CL._AC_UF350,350_QL80_.jpg)
Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics
![Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics](https://m.media-amazon.com/images/I/81GA6wrfaBL._AC_UF894,1000_QL80_.jpg)
Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics
![WD 4TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 - WDBFBE0040JBK-NESN WDBFBE0040JBK-NESN | Fast Server Corp. www.srvfast.com WD 4TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 - WDBFBE0040JBK-NESN WDBFBE0040JBK-NESN | Fast Server Corp. www.srvfast.com](https://www.srvfast.com/media/catalog/product/cache/73f179befb2b664ec3794b7759101d79/3/1/31jgtakorrl_vljqly22gwcj46kx.jpg)
WD 4TB My Book Duo Desktop RAID External Hard Drive - USB 3.1 - WDBFBE0040JBK-NESN WDBFBE0040JBK-NESN | Fast Server Corp. www.srvfast.com
![Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics](https://m.media-amazon.com/images/I/81mpjKH+HYL.jpg)
Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics
![Amazon.com: WD 36TB My Book Duo Desktop HDD USB 3.1 Gen 1 with Software for Device Management, Backup and Password Protection USB-C and USB-A Cables RAID 0/1, JBOD : Electronics Amazon.com: WD 36TB My Book Duo Desktop HDD USB 3.1 Gen 1 with Software for Device Management, Backup and Password Protection USB-C and USB-A Cables RAID 0/1, JBOD : Electronics](https://m.media-amazon.com/images/I/71BA6lNozHL._AC_UF350,350_QL80_.jpg)
Amazon.com: WD 36TB My Book Duo Desktop HDD USB 3.1 Gen 1 with Software for Device Management, Backup and Password Protection USB-C and USB-A Cables RAID 0/1, JBOD : Electronics
![Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics Amazon.com: WD 4TB My Book Thunderbolt Duo Desktop RAID External Hard Drive - Thunderbolt - WDBUTV0040JSL-NESN : Electronics](https://m.media-amazon.com/images/I/81rXkY1H0GL._AC_UF350,350_QL80_.jpg)