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OWC SSD Blade Upgrade - 960GB
for Accelsior & Accelsior E2 PCI Express Cards

OWC SSD Blade Uprage - 960GB
Maximize your storage and/or backup space
by upgrading to higher capacity Accelsior blades!
Upgrading your Accelsior with higher capacity SSD blades is as easy and quick as installing a memory module. Our 'how-to' video makes this Plug and Play easy! And you can trade in your original blades for a cash back rebate.
Accelsior SSD Blade Upgrades incorporate the latest SandForce® processor with 7% over-provisioning and DuraClass™ technology to deliver best-in-class reliability, performance, and power efficiency. You'll enjoy a more responsive and productive computing experience along with cooler, quieter, and more energy efficient computer operation. SandForce RAISE™ technology provides RAID-like data redundancy protection and reliability.


  • Extend your existing investment!
  • Boot, Launch, Create, and Save Faster
  • Up to 820MB/s of blistering performance
  • Up to 100,000 IOPS
  • Backed by a three-year warranty, and is designed and built in the U.S. from domestic and imported parts.

Release Candidate (RC) firmware set

There are two kinds of firmware for SSDs Mass Production (MP) and Release Candidate (RC). Prior to an MP firmware release, there are beta firmware releases and an RC firmware release. Often, the RC is the same as the MP release, however there can be small changes and bug fixes made between the two. OWC has evaluated the RC for the 6Gb/s SandForce 2281 Processor and found it to be stable with no issues reported during our testing. However, as with any evolutionary product, issues may surface as different usages and configurations are employed and it is important to understand that there will be further updates and revisions.

Since no firmware update is currently offered for the OWC Mercury EXTREME Pro 6G SSD, no update page exists. To see the typical steps involved with a self performed field firmware update, please visit our 3Gb/s product update page at:

It is important to note that the current firmware update tool requires the use of Windows XP/Vista/7. OWC is currently working on a Mac OS based update tool, but we do not have an exact availability date.

960GB SSD Blade Specifications:


Dual LSI® SandForce SF-228x series processors with 7% Over Provisioning
Tier 1 Major Multi-Level Cell (MLC) High-Performance Sync-NAND Flash
2 x 480GB blades for 960GB
Total Flash Memory Components - 1024GB
64GB allocated to real-time data redundancy & error correction
Formatted Capacity2
SMART Attributes
Not Supported
Native Command Queuing
up to 32 commands
AHCI Compliant
Plug and Play installation, no drivers* required
Manufacturer Model Number
RoHS Compliant


Data Reliability
ECC Recovery: Up to 55 bytes correctable per 512-byte sector
Chip Based Data Encryption: 128-bit AES-compliant
3 Year OWC Warranty
(Standard return policy applies.)


Sustained Sandy Bridge PC
Reads (up to)
Sustained Sandy Bridge PC
Writes (up to)
Sustained Ivy Bridge PC
Reads (up to)
Sustained Ivy Bridge PC
Writes (up to)
Sustained Mac Pro
Reads (up to)
Sustained Mac Pro
Writes (up to)
Random 4K Read
Up to 100,000 IOPS
Random 4K Write
Up to 100,000 IOPS
Write Latency
less than 0.1ms
Read Latency
less than 0.1ms

Environmental (Operating)

Temperature (°F)
32°F to 158°F
Temperature (°C)
0°C to 70°C

Environmental (Non-Operating)

Temperature (°F)
-67°F to 302°F
Temperature (°C)
-55°C to 150°C


Idle (Typical)
0.0 bels
Seek (Typical)
0.0 bels

Operating System Compatibility5

Vista and higher
Server 2008 and higher
Mac OS X
10.6 and higher
Mac OS X Server
10.6 and higher
Ubuntu Linux
9.04 and higher
Fedora Linux
14 and higher



Accelsior Driver for OS X 10.6.8 & Later, Mac Pro only
  1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
  2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
  3. Specific application environments such as temperature and duty cycle will affect the overall reliability.
  4. Performance may vary by machine - see compatibility tab for details.
  5. Accelsior may be used with Bootcamp only if the entire formatted capacity of the Accelsior model is completely dedicated to the Windows partition.
  6. Driver ensures proper power-down of Accelsior during sleep and shutdown actions, this driver does not interact with the data operation and ensures that OS X provides proper power down notification to the Accelsior where without the driver such notification may not occur.

Note: The use of two or more Accelsior SSDs requires OS X 10.6.8 or later.
Note: Bootcamp: 2008 Mac Pro (with model ID MacPro3,1) only supported in PCIe slots #3 & #4. All models: To boot Windows via Bootcamp on Accelsior, only one Accelsior SSD can be installed.
The OWC SSD Blade Upgrade is compatible with...
OWC Mercury Accelsior
OWC Mercury Accelsior
PCI Express Card
OWC Mercury Accelsior
OWC Mercury Accelsior E2
PCI Express Card
*Driverless in Windows only. Download Driver for Mac only.
OWC SSD Blade Upgrade - 960GB for Accelsior & Accelsior E2 PCI Express Cards Mfr P/N: SSDPHSETR960 OWC SKU: OWCSSDPHSETR960 3 Year OWC Limited Warranty Ships: Same Day Only $599.00Matched Kit for $529.00
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