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OWC Mercury Pro

Multi-Interface Optical Drive External Enclosure
USB 3.0 | FireWire 800 | FireWire 400

Add Plug and Play CD, DVD, and/or Blu-ray disc burning to any USB or FireWire equipped computer.
Turn your internal or bare 5.25" SATA optical drive into an external optical drive! Just install your favorite optical drive mechanism into the OWC Mercury Pro enclosure, plug in, and go! It's that easy!
Multi-Interface Types for Greatest Compatibility
USB 3.0, FireWire 800 and FireWire 400 with transfer rates of up to 300MB/s! With so many interface choices, it's compatible with virtually any system. The OWC Mercury Pro includes USB & FireWire 800 connecting cables. Offering true Plug & Play, it's never been easier to get started creating your own CD, DVDs, or Blu-ray discs*.

*Disc read/write capabilities vary depending on installed drive.

Product Specifications

Manufacturer Part Number

  • MRSFW8U3


  • Initio 1615 and 3609

Optical Drive Support

  • 5.25" SATA I/II optical drives (all CD & DVD devices and Blu-ray drives 7.7" (195.6 mm) and shorter)

LED Indicator

  • Preconfigured solutions only

Solution Material

  • ABS Plastic


  • Fan cooled

Power Supply


  • Varies with drive mechanism installed


  • Varies with drive mechanism installed

Port Configuration

  • USB 3.0 (2.0 Backwards Compatible) - 1 Port
  • FireWire 800 (1394b) - 2 Ports
  • FireWire 400 (1394a) - 1 Port

Max Data Transfer Rate

  • USB 3.0 - 3.0Gbps (or 300MB/sec)
  • USB 2.0 - 480Mbps (or 60MB/sec)
  • USB 1.1 - 12Mbps (or 1.5MB/sec)
  • FireWire 800 - 800Mbps (or 100MB/sec)
  • FireWire 400 - 400Mbps (or 50MB/sec)

Macintosh System Requirements

  • FireWire interface and OS X 10.3 or later
  • USB 3.0 or USB 2.0 interface and OS X 10.3 or later

Windows System Requirements

  • FireWire interface and Windows XP SP2 or later
  • USB 3.0 or USB 2.0 interface and Windows XP SP2 or later

OWC Notes

  • Apple software currently does not support Blu-ray drives, but the DVD and CD burning/reading portions of the OS do function.
  • Usage of Pioneer BDR-206, Pioneer BDR-207, Pioneer BDR-208 and Pioneer BDR-209 mechanisms over the FireWire interface are not supported.


  • (operating) 5°C - 55°C (41°F - 131°F)
  • (non-operating) -40°C - 65°C (-40°F - 149°F)

Relative Humidity

  • (operating) 8% - 90% RH (Non-condensing)
  • (non-operating) 5% - 95% RH (Non-condensing)


  • (operating) 65G 2mS
  • (non-operating) 175G 2mS

External Case Dimensions

  • 6.3 in (D) x 11.3 in (W) x 2.1 in (H)
  • (16.00 cm x 28.70 cm x 5.33 cm)

Total Shipping Weight

  • Less than 4.0lbs/1.8kgs


Product Manual


  • External SATA 5.25" Case Kit
  • High Quality Double Shielded USB 3.0 Standard-B to Standard-A (backward compatible with USB 2.0/1.1) connecting cable
  • High-quality, double shielded FireWire 800 (1394b) connecting cable (9-9 pin cable)
  • UL Listed U.S./International Auto Switching 100 ~ 240v, 50/60Hz input, 12 Volt 2.5 Amp output Power Supply (adapter plugs for International use sold separately). For replacement power supply, click here.



Customer Ratings

Write a Review 4 / 5 4 out of 4 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: Anonymous
Rating: 4/5 Great product! September 27, 2015 So far so good. Have been very happy/impressed with the enclosure. I did as much research as I could before purchasing an enclosure and I believe this one to be the highest quality enclosure I could find. Thanks OWC

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Las vegas, NV Age: Over 65 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 Needed an enclosure for a full sized CD/DVD burner July 12, 2015 The enclosure was more expensive that the others but the quality made it worth while. I needed a USB-3 connected device and this one fit the bill.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: New jersey Age: 55-65 Owned Product: less than a month
Rating: 4/5 OWC Mercury Pro USB 3.0, FireWire 800, & FireWire 400 Enclosure kit October 19, 2014 Migrating to the new MacPro meant I had to carry over my drives this enclosure was the perfect fit for my Blu-Ray disc drive

I would recommend this item to a friend!

Verified Buyer
Reviewer: Walter Location: North Carolina Age: 55-65 Experience Level: Home User Owned Product: less than a month
Rating: 3/5 A little pricey for plastic February 28, 2014 The enclosure appears to be aluminum, but is actually painted plastic. Upper and lower sections are very hard to take apart to install the drive and care must be taken to avoid damaging the enclosure when putting it back together. It would also be nice if the power switch was on the front. It was a little hard for me to reach.

Functionality seems good although I've only been testing for a few hours. Fast read/write without any vibration that I can hear and no fan noise.

Overall I would recommend this product but with some reservations. This is far from the best product I have purchased from OWC and the plastic was a surprise.

I would recommend this item to a friend!

Response from MacSales.com, Marketing March 3, 2014 The ABS plastic design is actually a testament to the longevity of this product. The housing was originally designed as a complement to the PowerMac G4 line of desktop computers. Through the years, updates were made to the interface ports to ensure maximum throughput, but the time-honored design itself still works well for most computer setup needs. If you're ever unsure at how to assemble or disassemble any of our add your own drive kits, we've provided step-by-step videos to show just how easy that task is. When the steps are completed in the correct order, the installation is quite simple: http://eshop.macsales.com/installvideos/enc_owc_mercury_pro_525/
OWC Mercury Pro Multi-Interface Optical Drive External Enclosure Mfr P/N: MRSFW8U3 OWC SKU: OWCMRSFW8U3 USB 3.0, FireWire 800, and FireWire 400 Enclosure kit for 5.25" SATA Optical Drives. 1 Year OWC Limited Warranty
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