Home » External Drives and Enclosures


Mercury Pro
5.25" Optical Drive External Enclosure

Mac / PC / Linux / USB 3.2 Gen 1
Optical drive sold separately
The All-New Desktop Optical
Configured for your workflow
Now with an updated design, Mercury Pro is the premier drive to bring optical media back to your workflow. With a sleek, durable aluminum chassis, and high-speed USB 3.2 Gen 1 interface, Mercury Pro delivers reliable performance that matches its good looks. It's cooler, quieter, and better than ever.
Add Plug and Play CD, DVD, and/or Blu-ray disc burning to any USB equipped computer.
The OWC Mercury Pro Optical Drive Enclosure makes CD, DVD, and/or Blu-ray disc burning* Plug and Play easy. A fast USB 3.2 Gen 1 interface and an aluminum design provides portable convenience and flexibility for use with both Macs and PCs. Now you can add a high performance external optical drive to a notebook or desktop computers.

Please note: disc read/write capabilities vary depending upon installed drive.
Drive shown for illustrative purposes only. Drive mechanism not included.

Product Specifications:

OWC Part Number



  • USB 3.0 (ASMedia ASM1053E)

Optical Drive Support

  • 5.25" SATA I and II optical drives (all CD, DVD, and Blu-ray drives with a depth up to 6.77 inches (17.2 cm))


  • Aluminum

Power Supply

  • 12V/3A Auto Switching International External Power Supply


  • Fanless

Port Configuration

  • (1) USB 3.2 Gen 1 port


  • 16.8 cm (6.77 in)


  • 5.8 cm (2.3 in)


  • 21.1 cm (8.3 in)


  • 1.1 kg (2.40 lbs)
Manufacturer provided specifications for Other World Computing p/n MR3UKIT UPC#: 812437023701



  • OWC Mercury Pro External Optical Enclosure
  • 0.6 meter (24") USB 3.0 (Standard-A to Standard-B)
  • External power supply and power cable
  • Assembly Manual & User Guide


The best warranty is one you never have to use - but should the need occur - we're proud to provide a superior level of support and service coverage to our customers.

1 Year OWC Limited Warranty
Even when not used, we understand the peace of mind afforded by a longer warranty period. OWC's industry leading coverage is a testament to our confidence in the reliability of the solutions that we offer. OWC solutions are engineered to demanding quality standards in order to deliver the most reliable, highest performance available on the market in each storage category.

Customer Ratings

Write a Review 4 / 5 7 out of 9 (78%) reviewers would recommend this product
Verified Buyer
Reviewer: SillyBee-58454
Rating: 5/5 Great service June 22, 2021 Received quickly and product was as specified.

I would recommend this item to a friend!

Response from OWC, Support June 22, 2021 Thank you so much, if you need help with anything please let us know!!
Verified Buyer
Reviewer: ExuberantParakeet-74788
Rating: 5/5 Great product June 16, 2021 Does what it should and does it well.

I would recommend this item to a friend!

Reviewer: ComputerUser Location: USA
Rating: 3/5 To short for the superior Pioneer drives May 21, 2020 In my work, I have found the Pioneer optical drives to be superior in performance and reliability. Sadly, The OWC Mercury Pro External USB 3.0 Enclosure is about 1/4" too short for Pioneer optical drives to fit. I knew this at the time of my purchase. I had to modify this enclosure in my machine shop, and I was able to make the Pioneer drive fit properly. I find the OWC enclosure to be superior to their competition, so I spent an extra three hours making this modification. If OWC could just make there controller board inside the enclosure about 1/4" shorter they could accommodate the much better Pioneer optical drives.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Smokerz Location: Detroit, Mi Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 1/5 too short for a PIONEER optical January 23, 2020 unbelievable this enclosure does not let a Pioneer fit to screw in....the 'board' of the OWC blocks the Pioneer from traveling in to get to the screw holes. I'm short on a external drive so keeping this temporarily. I've taped the Pioneer to prevent slipping out of the enclosure. Unbelievable. I would not describe this as a PROFESSIONAL enclosure because of this poor design. I'm not going to swap in a Samsung or an LG because the Pioneers work under all conditions. The other two do not.

Response from OWC, Call Center January 24, 2020 Hello. I'm sorry to hear about any issues you were having with your Mercury Pro Enclosure. We do list in the specifications the length of a drive that this can house properly, so I do apologize if that was missed. Currently, this enclosure can house a drive with a depth up to 6.77 inches.
Verified Buyer
Reviewer: gregory Location: Carthage, Mo. Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 2/5 this product came close March 29, 2018 this 5.25 inch enclosure for disc drives ect. looks nice but falls short of fitting correctly. the Sony BR drive i have is not flush with the front of the enclosure but i kept it anyway because i needed something to hold the disc drive. I have bought a lot of product from MacSales and will continue to do so, this one just fell a little short. i am attaching a photo of the fit i have described.

Response from OWC, Call Center March 30, 2018 Hello! I'm very sorry to hear about any issues with the fit on the Mercury Pro. This is designed to work with drives that are 7" or less deep, and there were a few optical drives that are longer than those 7". I'm sorry if that wasn't clear on the product description. Feel free to contact us at 1-800-275-4576 for any further assistance if needed!
Verified Buyer
Reviewer: KR3Bannon Location: Pahrump, NV Age: 55-65 Experience Level: Power User Owned Product: over 6 months
Rating: 5/5 Easy install, works great November 16, 2017 Install is straightforward, they have a video online if you need to watch it---I did, and made sense. Needed this to preserve an internal BD / DVD burner when I changed to a 2017 iMac. Works the same now but is outside my computer.

I would recommend this item to a friend!

Verified Buyer
Reviewer: leeberg Location: Florida Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Solid Case, But USB 3.0 Does not Speed Disc Writing September 21, 2017 This is a nice case, and installing the Blu-Ray drive was simple. I had the misconception that connecting via USB 3.0 might speed up disc writing, but I guess that the issue is in the Pioneer burner.

I would recommend this item to a friend!

Verified Buyer
Reviewer: EEMac Location: Olympia, WA
Rating: 5/5 Fast, quiet, quality August 4, 2017 Works well. I installed a Pioneer BDR-2209 (aka BDR-209UBK) and it went off without a hitch. Test burns have had no problems so far. Fanless construction is nice!

The included two-foot USB cable is high quality but too short. The enclosure uses a standard USB 3 type B connector, so longer cables are cheap and easy to find.

Desktop-sized optical drives work a lot faster than slimline portable ones! This enclosure is a great way to get a $current_technology$ drive without the limitations of a laptop form factor.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Hinkle Location: South Carolina Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Good Product January 1, 2017 I had ordered a new tower PC and it only had one slot for a DVD drive. I had two drives with my old tower so I removed the second DVD drive from the old tower and installed it into the Mercury Pro External USB 3.0 Enclosure. Installation and hook up of the second drive using the Mercury Pro was easy and had no problem accessing it using Windows 10.

I would recommend this item to a friend!