OWC Mercury Elite Pro Dual RAID Storage Solution with USB (10Gb/s) + 3-Port Hub

Out of stock
4 x 2TB 7200 rpm SATA III 3.5" HDDs
4 x 3.5"/2.5" SATA III 6 Gb/s Drive Bays
Thunderbolt 3 (USB Type-C) Interface
RAID 0, 1, 4, 5, 10, and JBOD
Pre-Configured in RAID 5
Software Controller
Read Speeds up to 568 MB/s
1 x 92mm Cooling Fan
SoftRAID Software Included
Windows and Mac Compatible

Number of Bays 4 x 2.5"/3.5"
Connections 2 x USB Type-C (Thunderbolt 3)
1 x DisplayPort (DisplayPort 1.2)
Compatible Drive Interface SATA III
Form Factor Desktop
Maximum RAID Transfer Rate 568 MB/s (Read)
574 MB/s (Write)
RAID Modes RAID 0, 1, 10, 4, 5, JBOD
Operating System Support Windows, macOS/OS X
OS Compatibility Windows 10 or Later
macOS 10.12.2 or Later
Total Raw Capacity 8 TB (4 x 2 TB)
Type Hard Disk Drive
Rotational Speed 7200 rpm
Interface SATA III
Cache Memory per Drive 64 MB
Initial RAID Configuration RAID 5
Power Source Internal Power Supply
AC Input Power 100 to 230 VAC, 50 / 60 Hz
Security Features Kensington Security Slot
Operating Temperature 50 to 95F / 10 to 35C
Storage Temperature -40 to 149F / -40 to 65C
Cooling 1 x 92 mm Fan
RAID Controller None
Status Monitoring LED Indicator
Dimensions (W x H x D) 5.3 x 7.0 x 9.6" / 134.6 x 177.8 x 243.8 mm
Weight 12.6 lb / 5.7 kg
Packaging Info
Package Weight 18.85 lb
Box Dimensions (LxWxH) 15.6 x 14.3 x 10.9"

Add RAID 5 storage to your Mac or Windows computer with the ThunderBay 4 8TB 4-Bay Thunderbolt 3 RAID 5 Array from OWC / Other World Computing. As you can guess from its name, the ThunderBay 4 features dual Thunderbolt 3 ports, which utilize the USB Type-C connector. There is also a DisplayPort 1.2 port for connecting up to a 4K display.

The ThunderBay 4 has four drive bays, which supports both 2.5" and 3.5" hard drives (2.5" HDDs do not need adapters). This particular ThunderBay 4 model comes with four 2TBTB 3.5" 7200 rpm drives for a total of 8TB storage capacity. The included drives are configured in RAID 5. With RAID 5, you get protection against a single drive failure. Three of the hard drives are used for storage while one hard drive is used for parity. If you want to reformat to RAID 0, 1, 4, or 1+0, you can use the included SoftRAID software.

Total Raw Capacity8 TB (4 x 2 TB)
Storage4 TB
Charging and Expansion
Power SourceInternal Power Supply
Noise CancelingYes
Operating Requirements
Storage Temperature-40 to 149F -40 to 65C
Size and Weight
Box Dimensions (LxWxH)15.6 x 14.3 x 10.9"
In the Box
Box Contents
  • User configurable in RAID 0, 1, 4, 5 and 1+0
  • Up to 580MB/s read / 569MB/s write RAID 5 performance
  • Up to 878MB/s read / 924MB/s write RAID 0 performance
  • Exponentially faster rebuild times than hardware RAID
  • Intelligent drive monitoring with desktop and email notification
Operating System
OS CompatibilityWindows 10 or LatermacOS 10.12.2 or Later
Connections2 x USB Type-C (Thunderbolt 3)1 x DisplayPort (DisplayPort 1.2)
Rotational Speed7200 rpm
Form FactorDesktop
Beamforming SupportYes
WarrantyLimited 3-Year Warranty


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