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OWC Mercury Pro U.2 Dual
Dual-Bay Thunderbolt External Storage Enclosure for 2.5-inch and 3.5-inch NVMe U.2 Solid-State Drives and Adapters
Mfr P/N: TB3MPDU000J OWC SKU: OWCTB3MPDU000J
Professional Grade Thunderbolt (USB-C) Dual Bay U.2 SSD Enclosure for Mac and Windows PCs
- Blazing fast: utilize Thunderbolt’s full 2800MB/s data bandwidth1
- Unrivaled capacity: the only dual bay solution configurable with up to eight (8) NVMe SSDs
- Easy RAID: Plug and play out of the box or enjoy more RAID choices than traditional dual drive enclosures
- Additional Connectivity: second Thunderbolt USB-C port lets you add up to five Thunderbolt devices, or your choice of a USB-C or DisplayPort device2
- Easy Drive Monitoring: Front panel activity LEDs offer instant status update
- Compatible: works with Mac and Windows computers3
- 1 Year OWC Limited Warranty
Edit, Ingest, and Backup in a Blink
Nearly 6x Faster SSD Performance
Adaptable Flexibility
Reconfiguration Ready
- For cost-effective and streamlined RAID 0 and RAID 1 storage needs, configure each bay using a 2.5-inch or 3.5-inch NVMe U.2 drive; or configure each bay with an NVMe M.2 SSD with an M.2 to U.2 adapter, like the OWC ShuttleOne.
- For more advanced RAID and capacity needs, configure each bay using an OWC U2 Shuttle with up to four NVMe M.2 SSDs per shuttle for a total of eight (8) SSDs.
Store More, See More, Do More
More Powerful With SoftRAID
Try SoftRAID COMPLETELY FREE for 14 Days
Ready to Work Anywhere
- Sequential read/write (max) performance based on testing Mercury Elite Pro U.2 Dual with 8 x 2TB Aura Ultra III SSDs in RAID 0 equipped connected to a MacBook Pro (16-inch 2019) with 64GB RAM and 2.4GHz i9 processor running AJA System Test (4K-Full resolution, 64GB file size, 10bit RGB codec, single file test). Each of the (2) U.2 drive bays are 2x PCIe lanes and support speeds of up to 1500MB/s. Max performance of 2800MB/s requires using both drive bays in a RAID 0 configuration.
- Requires use of DisplayPort to USB-C cable or adapter.
- Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
- Select SSDs have been tested by OWC and shown to be incompatible with Mac systems running macOS 10.14 'Mojave' and later regardless of how they are connected to the host computer. Please consult the article "Incompatible SSD List: macOS 10.14 'Mojave' and Later" for a list of affected SSDs.
Includes
- (1) OWC Mercury Pro U.2 Dual External Storage Enclosure
- (1) External Power Supply
- (1) US Power Cable
- (1) 0.7M (28") Thunderbolt Cable
- (1) Quick Start Guide for OWC Mercury Pro U.2 Dual
- (1) Assembly Manual & User Guide for OWC Mercury Pro U.2 Dual
- 1 Year OWC Limited Warranty
Specs
Drive Bays
- 2 bays supporting: 2.5-inch U.2 SSDs, 3.5-inch U.2 SSDs, M.2 SSDs (with M.2 to U.2 adapter)
Hot Plug Support
- Yes
Boot Support
- Independent volumes bootable in macOS. Boot Camp is not supported.
RAID Capable
- Yes
RAID Levels Supported
- RAID 0
- RAID 1
- JBOD
- RAID 4
- RAID 5
- RAID 0+1
RAID Features
- Software RAID
Device Ports
- (1) Host Port - Thunderbolt 3 (USB-C) up to 40Gb/s (5000MB/s)
- (1) Thunderbolt 3 (USB-C) Port
Power Delivery
- Two Thunderbolt 3 ports (15W each)
Display Support
- Up to one 5K display @ 60Hz,
- or one 4K display @ 60Hz,
- or one 4K display @ 30Hz
Display Support by Port
- Thunderbolt 3: Up to 5K @ 60Hz via a native Thunderbolt 3 display or 4K @ 60Hz via a Thunderbolt display or a USB-C display adapter
Data Transfer Rate (Maximum)
- Thunderbolt 3 : Up to 40Gb/s (or 5000MB/s)
Chipset / Controller
- Thunderbolt 3: Intel JHL6540
MTBF (Mean Time Between Failures)
- Varies depending on drive mechanism installed
Contact Start Stops
- Varies depending on drive mechanism installed
Host Interface Requirements
- Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt1)
Mac OS Compatibility
- macOS 10.13 High Sierra
- macOS 10.14 Mojave
- macOS 10.15 Catalina
- macOS 11.x Big Sur
- macOS 12.x Monterey
- macOS 13.x Ventura
- macOS 14.x Sonoma
- macOS 15.x Sequoia
PC OS Compatibility
- Windows 10 64-bit Edition
- Windows Server 2016
- Windows Server 2022
- Windows 11
Driver Required
- No
Other Requirements
- Requires 2.5 or 3.5 inch NVMe U.2 SSDs or U.2 adapters using the same form factors.
External Power Adapter
- Yes
Power Supply
- External UL-listed universal auto-switching power supply
AC Input
- 100-240V, 50-60Hz, 2.0A
DC Output
- +12V, 10A
Wattage
- 120W
Cooling
- (1) 60mm 3,000RPM cooling fan
Security Slot
- Yes
Power/Activity LED
- Yes
Housing Color
- Black
Housing Material
- Aluminum
Dimensions
- Height: 14.7 cm (5.8 in)
- Length: 23.9 cm (9.4 in)
- Width: 8.5 cm (3.3 in)
Weight
- 1.5 kg (3.31 lbs)
Certifications
- BSMI
- CE
- FCC
- RCM
- VCCI
Ambient Temperature
- Operating: 41°F to 95°F (5°C to 35°C)
- Non-Operating: -4°F to 140°F (-20°C to 60°C)
Altitude
- Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
- Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
Humidity
- Operating: 8% to 90% non-condensing
- Non-Operating: 5% to 95% non-condensing
Noise
- 32.4dB
- Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
- M.2 drives are also supported with M.2 to U.2 adapter such as the OWC U2 Shuttle and OWC U2 ShuttleOne (available separately).
Compatibility & Installation Videos
MacBook Pro


































Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
MacBook Air










Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.










Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.

Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Mac Pro








Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Mac Studio



Mac mini





Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
PC Compatible

PC must have a compatible Thunderbolt port
Videos
U.2 Drives / Adapters Install Video
Learn More
Customer Reviews
Using the U.2 dock, this storage system is very fast with U.2. SSDs
I would recommend this product to a friend!
- Reviewer:WayneU444
Thank you so much for your amazing 5-star review! We're thrilled to hear that you're experiencing lightning-fast storage performance with our U.2 SSDs and U.2 dock. Your feedback truly means a lot to us. We're grateful for your support and look forward to serving you again in the future.
I had several external Hard Drives daisy chained off of my iMac and was it not only hard to manage, one of the drives maxed and did not allow further saving. It was crippling. So after some research on SSD Hard Drives, the 8.0TB OWC Mercury Pro U.2 Dual High-Performance Thunderbolt SSD fit my performance, storage requirements, and budget. It has been a Godsend, as it quietly sits beside my monitor and hub, which is no longer burdened by the two external SSDs that have been formatted and readied for use should the need arise for additional storage space. I am very happy with my purchase, and if you are juggling external hard drives tor your music and film project, I highly recommend the 8.0TB OWC Mercury Pro U.2 Dual High-Performance Thunderbolt SSD. If you can afford it, a higher memory device, like the 16 and 32 TB units that OWC offers.
I would recommend this product to a friend!
- Reviewer:gabebey
Thank you for the feedback on the OWC Mercury Pro U.2 Dual. We appreciate you taking the time to let us know that you received a great product that that it has been a godsend to your set up. Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/
I am using Kingston KC3000 SSDs, setup with RAID 0 via Apple. Is working perfect and very fast indeed. Waiting for another sale on the KC3000 to complete the population out and change to RAID 10. Very happy.
I would recommend this product to a friend!
- Reviewer:PleasantToucan-52214
Thank you for choosing OWC for your technical needs. I'm so glad to hear the Mercury Pro U.2 is working great for you! Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/