A Global Silicon Electronics, Inc. Company
BUSLink USB 3.0/eSATA 2-Bay RAID 1 External Desktop Hard Drive
WARNING for California resident
Available In Price Model
4TB 399.99 U3-4TB2SR1
6TB 499.99 U3-6TB2SR1
8TB 599.99 U3-8TB2SR1
10TB 699.99 U3-10TB2SR1
12TB 799.99 U3-12TB2SR1
16TB 849.99 U3-16TB2SR1
20TB 999.99 U3-20TB2SR1
24TB 1299.99 U3-24TB2SR1
28TB 1499.99 U3-28TB2SR1

Product Description

This BUSlink 2-Bay RAID 1 hard drive supports large capacity and USB 3.0/eSATA interface. It supports RAID 1 mirroring (backup). Removable HDD trays support hot-plug replacement of drives. HDD intelligent sleep function is supported. Cooling fan maintain safe operating temperature. Skid proof and shockproof rubber feet mat ensure safe operation.


  • 2 drives included and installed in trays
  • RAID 1 (mirroring), RAID 0 (striping) also available
  • Removable 3.5” HDD tray supports hot-plug replacement of drive
  • Support HDD intelligent sleep function
  • Cooling fan maintain safe operating temperature
  • Skid proof and shockproof rubber feet mat ensure safe operation
  • Self-powered, AC adapter included
  • Operates independently to the OS: does not require separate drivers
  • Transfer rate:
    • USB 2.0: Up to 480 Mbits/s
    • USB 3.0: Up to 5 Gbits/s
    • eSATA: Up to 6.0 Gbits/s
  • Drive: Pre-formatted NTFS SATA drives (can be reformatted for Mac or Linux)

System Requirement

  • eSATA port with AHCI mode to support hot-plug
  • USB 3.0 SuperSpeed port to achieve USB 3.0 transfer speed
  • Backward compatible to USB 2.0 Hi-Speed port with USB 2.0 transfer speed
  • Mac OS X 10.4 or later
  • Microsoft Windows 10, 8, 7, Vista, XP
  • Windows Server 2016, 2012, 2008, 2003. Does not work with 2000 Server
  • Linux
  • Larger than 2TB requires GPT support; does not support Windows XP

Package Contents

  • BUSLink 2-Bay RAID 1 encrypted external hard drive
  • USB 3.0 A to B cable
  • eSATA cable
  • 12V 4A DC Full range switching power adapter
  • User Manual