A Global Silicon Electronics, Inc. Company
Buslink USB 3.0/eSATA 2-Bay RAID External Desktop Hard Drive
WARNING for California resident
Available In Price Model
20TB (RAID 0) 999.99 U3-20TB2S
24TB (RAID 0) 1299.99 U3-24TB2S
16TB (RAID 1) 849.99 U3-16TB2SR1
20TB (RAID 1) 999.99 U3-20TB2SR1
24TB (RAID 1) 1299.99 U3-24TB2SR1
28TB (RAID 1) 1599.99 U3-28TB2SR1

Product Description

This BUSlink 2-Bay RAID hard drive supports large capacity and USB 3.0/eSATA interface. It supports RAID 0 or RAID 1 depending on the model ordered. RAID 0 (striping) is faster and provides the full capacity (ie. 2TB x 2 = 4TB) but no backup. RAID 1 (mirroring) is slower and provides half the capacity (ie. 2TB x 2 = 2TB; 1 drive is used for backup). Removable HDD trays support hot-plug replacement of drives (only for RAID with redundancy mode). 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
  • Comes in 2 RAID models: RAID 0 (striping) and RAID 1 (mirroring)
  • RAID mode is fixed and is not user changeable
  • Removable 3.5” HDD tray supports hot-plug replacement of drive (RAID mode with redundancy only)
  • 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
  • Transfer rate:
    • USB 2.0: Up to 480 Mbits/s
    • USB 3.0: Up to 5 Gbits/s
    • eSATA: Up to 3.0 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 and does not support Windows XP

Package Contents

  • BUSlink USB 3.0/eSATA 2-bay RAID external hard drive
  • USB 3.0 A to B cable
  • eSATA cable
  • 12V 4A DC Full range switching power adapter
  • User Manual