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Mercury Extreme Pro 6G

OWC upgraded its Mercury Extreme Pro 6G series SSD to match up with OCZ’s Vertex 3 and Patriot’s Wildfire. The 240 GB version now sports a OWC Mercury Extreme Pro 6G SSDSandForce SF-2281 controller while the 480 GB variant is now powered by a SandForce SF-2282. These changes allowed this drive to reach read speeds of 559 MB/s and write speeds of 527 MB/s.

The Mercury Extreme Pro 6G has the same read and write IOPS figures at 60,000. Its read and write latency is equal too at less than 0.1 ms. It supports 128-bit and 256-bit AES compliant data encryption. The drive can recover 55 bytes in a sector than contains 512 bytes. Similar to other SATA III synchronous NAND Flash  SSDs, the Mercury Extreme Pro 6G supports SMART, TRIM and RAID technology.


  • Sequential Read: Up to 559 MB/second
  • Sequential Write: Up to 527 MB/second
  • NAND type: MLC
  • Interface: SATA 3 6GBps
  • Controller: SandForce SF-2281/SF-2282
  • Form Factor: 2.5 inches
  • Power Consumption (idle): <1.2 W
  • Power Consumption (active): < 3 W
  • DRAM Cache: None
  • TRIM support: Yes
  • SMART support: Yes
  • Warranty: 3 years

Part Numbers:

  • 120 GB : OWCSSDMX6G120
  • 240 GB : OWCSSDMX6G240
  • 480 GB : OWCSSDMX6G480



The OWC Mercury Extreme Pro 6G with the new SF-2282 controller and Toshiba Toggle Mode flash is the 2.5″ drive to get at this time if you are looking for full on, no compromise, no BS performance. We have every 2.5″ client SF-2000 Series SandForce drive available in the US sitting on our desk and this is the fastest right now.


With the exception of the (temporary?) 4KB random write cap and slightly higher power consumption, OWC’s Mercury Extreme Pro 6G is a dead ringer for OCZ’s Vertex 3 – at least at the 120GB capacity. The two come with comparable warranties which brings the decision down to pricing, where OCZ currently has a $20 advantage


The change in NAND on the new OWC Mercury Extreme Pro 6G is an interesting shift, since for the same cost, consumers are now getting a higher performining drive. For the most part, this type of change bucks the common trends, which usually push to bring costs down during production, instead of improving performance or perhaps increasing internal costs. Another huge plus is OWC is keeping the same industry-leading five-year warranty on the Mercury Extreme Pro 6G, matched only by Intel, although OWC is the first to offer five-years with Toshiba toggle NAND.


OWC is going to garner a lot of attention if they keep putting out products like the 240 GB Mercury EXTREME Pro 6g SSD as we found it to be the best overall performing SATA III drive we have tested to date. The bar is set – who will step up next?



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