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OWC Mercury Pro U.2 Dual for up to 16TB U.2 SSD, or 64TB NVMe M.2

I haven’t seen the OWC Mercury Pro U.2 Dual (or any U.2 drives), but apparently there are two “bays”, each of which can accommodate two U.2 SSDs or alternately, up to eight SSDs in an NVMe M.2 form factor, as in the OWC MERCURY PRO U.2 DUAL ADVANCEDX8 supporting up to 64TB, using the OWC U.2 Shuttle.

WOW! 64TB in one relatively compact external enclosure is something you can’t even touch with hard drives. It’ll cost you, but in the right industry, what a slick solution.

I would not also that if you have up to 8 blades, this enclosure looks to be a nice way to house them, using two OWC U.2 Shuttle.

Performance note: Each bay gets two PCIe lanes in the OWC Mercury Pro U.2 Dual, for a total of four lanes.


  • 3.5-inch U.2 SSDs
  • 2.5-inch U.2 SSDs
  • NVMe M.2 SSDs via 2.5 or 3.5 inch U.2 adapter

If you need 64TB of SSD, looks like a great way to go. I prefer the form factor of the OWC Thunderblade, but it maxes-out at 32TB with its four NVMe M2. slots.

As of Nov 26, you could build your own 16TB unit (2 X 8TB U.2 SSD + enclosure) for $978 X 2 + $299 = $2255.

OWC Mercury Pro U.2 Dual

OWC Announces Mercury Pro U.2 Dual As World’s First Thunderbolt Dual Bay U.2 Desktop Storage Solution


The ideal storage solution for anyone and any task with up to 2800MB/s speed and massive 16TB storage capacity

OWC®,the premier zero-emissions Mac and PC technology company,and a respected provider of MemoryExternal DrivesSSDsMac & PC Docking Solutions, Network Attached Storage, and Performance Upgrade Kits, announces the OWC Mercury Pro U.2 Dual. The OWC Mercury Pro U.2 Dual offers up to 16TB of storage for creative pros, small office/home office users, students, and families to save, access, backup, and edit work and personal files. It utilizes Thunderbolt’s full 2800MB/s of data bandwidth to function nearly 6x faster than your typical SSD. Dual drive bays house two NVMe U.2 SSDs for streamlined, easy-to-manage RAID storage. 

A super easy, plug and play design makes the OWC Mercury Pro U.2 Dual the most convenient drive to use. Just connect the included Thunderbolt cable to your machine or OWC docking solution and start saving, editing, and sharing at warp speed.

With OWC's MacDrive software (sold separately) installed on your Windows PC,  you can use Apple RAID formatted drives without jumping through hoops for the ultimate cross-platform workflow. 

The OWC Mercury Pro U.2 Dual is ready for your demanding A/V, digital photography, professional music, graphics, and general data backup needs. The OWC Mercury Pro U.2 Dual gives everyone the necessary horsepower to get the job done:

  • Backing up simple to complex video editing projects 
  • Time Machine and File History backups of essential business data and irreplaceable personal photos 
  • Consolidating files from multiple smaller drives to a single location for faster, more convenient access 
  • Migrating data from an existing machine to a new computer 
  • Freeing up space on a computer's internal drive to improve performance

An extra Thunderbolt USB-C port lets you daisy-chain devices to your OWC Mercury Pro U.2 Dual to expand your capabilities. Attach a 5K display or two 4K Thunderbolt displays. You can even place a USB device at the end of the chain. The OWC Mercury Pro U.2 Dual gives you the freedom to use more of what you need.

OWC Mercury Pro U.2 Dual Highlights

  • Blazing fast: Utilize Thunderbolt’s full 2800MB/s data bandwidth
  • Unrivaled Capacity up to 16TB: The only dual-bay solution with up to two NVMe U.2 SSDs
  • Cross Platform Compatible: Use the same drive between a Mac and a PC with OWC MacDrive for Windows
  • Additional Connectivity: Add up to five Thunderbolt devices, a display, or your choice of a USB-C or DisplayPort device via the second Thunderbolt USB-C port
  • Easy Drive Monitoring: Front panel activity LEDs offer an instant status update
  • Deployment Ready: Solutions undergo a rigorous multi-step performance certification
  • Worry-free: Up to 3 Year OWC Limited Warranty and lifetime support

“With the OWC Mercury Pro U.2 Dual, we wanted to build a storage solution for everyone that could handle any task or workflow,” said Larry O’Connor, CEO and Founder of OWC. “It’s perfect for everything from routine backups, storing photos, music, you name it, making the OWC Mercury Pro U.2 Dual the ideal drive for Mac or PC.”

Great solution for dual U.2 drives. As shown below, at present you can get a 16TB U.2 external for just $2400!

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