• OWC Live Chat Support
  • OWC Newsletter
  • OWC Blog
Description: Ships: Price:
240GB OWC Mercury Accelsior_E2 PCI Express SSD with two eSATA Expansion ports. Up to 5x faster performance than an internal SATA drive with speeds up to 823MB/s read and 772MB/s write. Plug and Play*. 3 Year OWC Limited Warranty. (SSDPHWE2R240)

Parallels Desktop 10 for only $39.00! Exclusive offer with purchase of OWC SSDs. Run Windows and/or Linux applications from your OS X Desktop!
Click Here for qualifying items
Same Day $449.99
OWC Discounted Price: $379.99
Rating: 4.9 based on 36 reviews.
Add to Your Basket:
 

OWC

240GB
Mercury Accelsior_E2
PCI Express Solid State Drive

The PCIe SSD drive built for the most demanding needs of video editing and creative professionals.
3 Year OWC SSD Limited Warranty
Boot, Launch, Create, and Save Faster
With its simultaneous internal and external storage performance, the Mercury Accelsior_E2 offers the the best combination of speed, capacity, and connectivity available today.

Stop waiting for I/O-intensive apps like Photoshop, Final Cut Pro, or Avid Pro Tools to render, capture or process. Start working faster with near instantaneous boots and app launches. And save your work faster than ever before.

The Accelsior_E2 utilizes the PCIe slot in Mac Pros and PC towers, the fastest data interface available, to deliver up to 820MB/s of blistering perfomance. That's nearly 3x faster than an SSD equipped Mac Pro 3Gb/s drive bay, and well beyond 6Gb/s drive speeds.

When your work is completed, transfer it for backup or archival purposes at speeds up to 600MB/s via the two eSATA expansion ports to any external storage device with an eSATA port.
Boost Server and Gaming Data Speeds
In addition to video-editing and multimedia creation / management deployment, the Accelsior_E2 takes servers and gaming to entirely new levels of performance with it's extreme data speeds.

With up to 100,000 IOPS, business-critical applications like online transaction processing databases are given an instant boost. For gamers, Accelsior_E2's speed dramatically reduces game level-loading, object streaming, and save times for more playing and less waiting.
And Laptops, Mac mini, & iMac Too...
The Accelsior_E2 isn't just for desktop computing. With an external PCIe expansion chassis, such as the OWC Helios, you can enjoy the Accelsior_E2's performance benefits with any Thunderbolt port equipped Mac or PC.
Efficient, Reliable, and Upgradeable SSD Blades
Accelsior_E2's SandForce Driven™ SSD blades provide a more responsive and productive computing experience with cooler, quieter, and more energy efficient operation compared to standard hard drives. SandForce RAISE™ technology provides RAID-like data redundancy protection and reliability.

And with the future introduction of higher capacity Mercury Accelsior SSD blades, you'll be able to meet expanding storage needs while extending the useful life of your investment.
Easy-to-Install, Robust, & U.S. Built
Accelsior is as easy-to-install as memory a upgrade, yet robust enough to handle the rigors of pro environments.

This game-changing, high-performance upgrade comes backed by a 3 Year OWC SSD Limited Warranty, and is designed and built in the U.S. from domestic and imported parts.
Trade in Program Accelsior Trade-Up Program Previous Accelsior owners can trade-up to E2:
View rebate details.
Add Up to 32TB Externally
with Two eSATA Expansion Ports
In addition to the ultimate SSD upgrade, the Accelsior_E2 adds two eSATA storage expansion interfaces to any Mac Pro. Achieve faster than internal drive speeds with up to 600MB/s performance per drive. That's a whopping 6x faster than the fastest stock Mac Pro external interface of FireWire 800 with up to 100MB/s data rates.
RAID or Single Drives,
The Choice is Yours
A variety of single and multi-drive RAID solutions can be connected via Accelsior_E2's two eSATA expansion ports. You can also create a RAID array with Apple's Disk Utility, SoftRAID, or various software RAID applications for PCs.

Includes

Note about compatibility and throughput:
  • Compatibility:
    • Compatible with all eSATA equipped storage solutions.
  • PC Throughput:
    • PCIe 2.0 x4 slot or better is required. Use of a PCIe 1.0 x4 slot will reduce performance.
  • Mac Pro Throughput:
    • 2009-2010 Mac Pro. Installing Accelsior into any open x4 or x16 PCIe 2.0 slot will deliver full throughput up to 785MB/s.
    • 2008 Mac Pro. These models have two x16 PCIe 2.0 slots, which enable Acceslsior_E2 to deliver full throughput up to 785MB/s. Installing Accelsior_E2 into of the two x4 PCIe 1.0 slots will result in Accelsior_E2 being addressed as a gen one, one-lane card with performance limited to real world 190-200MB/s data rates.
    • 2006-2007 Mac Pro. These models utilize PCIe 1.0 slot which cannot be configured (even with the Expansion Utility in OS X) to address Accelsior_E2 as anything but as a first generation one-lane card. As a result, Accelsior_E2 performance will be limited to 190-200MB/s data rates. If maximum data rate speed up to 285MB/s is desired, we recommend the installation of a 2.5" OWC Mercury SSD in an open Mac Pro drive bay.
  • eSATA Expansion Ports:
    • Compatible with all eSATA equipped storage solutions.*
    • A sleep conflict may be encountered when using certain eSATA chipsets via the eSATA ports when booted to the Accelsior_E2. See the specifications tab for affected solutions where System Sleep mode MUST be disabled in order to ensure reliable operation. Allowing system sleep to occur while one of the affected external drives is connected via the Accelsior_E2 eSATA ports could result in loss of data following wake from sleep. Although the above are our general recommendations for use, wake from sleep has been determined to only be an issue when the Accelsior PCIe is used for startup (SSD or eSATA connected device). We are working with our partners to see that the sleep/wake function is fully supported with all solutions and startup scenarios.
  • Dual Card Use/Booting:
    • Dual Accelsior_E2 Usage. The use of two or more Accelsior_E2 SSDs requires OS X 10.6.8 or later.
    • 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_E2, only one Accelsior_E2 SSD can be installed.
    • 2006-2008 Mac Pro (with model ID MacPro1,1; MacPro2,1; MacPro3,1). Due to an Apple limitation, any volume located on a Mercury Accelsior_E2 SSD will not appear in the "option boot" menu. A volume installed on an Accelsior_E2 can be set as the Mac Pro's boot volume through the "Startup Disk" pane in System Preferences.

*Requires 6Gb/s certified cables for connecting to eSATA drives - available separately. Not compatible with port-multiplier enclosures. The eSATA ports do not support hot-swapping. Accelsior_E2 eSATA ports are bootable.
This OWC SSD is compatible with: Learn how to find your Mac's model ID
Mac Pro
Mac Pro Quad-Core
(Mid 2010-2012)
(July, 2010)
Model ID: MacPro5,1
2.8GHz, 3.2GHz
Mac Pro
Mac Pro 6-Core
(Mid 2010-2012)
(July, 2010)
Model ID: MacPro5,1
3.33GHz
Mac Pro
Mac Pro 8-Core
(Mid 2010-2012)
(July, 2010)
Model ID: MacPro5,1
2.4GHz
Mac Pro
Mac Pro 12-Core
(Mid 2010-2012)
(July, 2010)
Model ID: MacPro5,1
2.40GHz, 2.66GHz, 2.93GHz, 3.06GHz
Mac Pro
Mac Pro (Early 2009 Quad-Core)
(March, 2009)
Model ID: MacPro4,1
2.66GHz, 2.93GHz, 3.33GHz
Mac Pro
Mac Pro (Early 2009 8-Core)
(March, 2009)
Model ID: MacPro4,1
2.26GHz, 2.66GHz, 2.93GHz
Mac Pro
Mac Pro (Early 2008)
(January, 2008)
Model ID: MacPro3,1
2.8GHz, 3.0GHz, 3.2GHz
Mac Pro
Mac Pro (8-core)
(April, 2007)
Model ID: MacPro2,1
3.0GHz
Mac Pro
Mac Pro
(August, 2006)
Model ID: MacPro1,1
2.0GHz, 2.66GHz, 3.0GHz
Xserve Intel
Xserve (Late 2006)
(August, 2006)
Model ID: Xserve1,1
dual 2.0GHz, dual 2.66GHz, dual 3.0GHz
Xserve Intel
Xserve (Early 2008)
(January, 2008)
Model ID: Xserve2,1
2.8GHz, dual 2.8GHz, dual 3.0GHz
Xserve Intel
Xserve Quad-Core (Early 2009)
(April, 2009)
Model ID: Xserve3,1
2.26GHz
Xserve Intel
Xserve 8-Core (Early 2009)
(April, 2009)
Model ID: Xserve3,1
2.26GHz, 2.66GHz, 2.93GHz
PC Desktop
PC Desktops
Compatible with Intel / AMD Process based PCs capable with the specifications listed above.
PC Servers
PCIe capable servers
Compatible with PCIe expandable servers with the specifications listed above.
HP DL 380 G7
NOT COMPATIBLE
HP DL 380 G7
HP DL 380 G8
Dell PowerEdge R620
NOT COMPATIBLE
Dell PowerEdge R620
Dell PowerEdge R620
NOT COMPATIBLE
Dell PowerEdge T620
* Not compatible with port-multiplier enclosures. The eSATA ports do not support hot-swapping. Accelsior_E2 eSATA ports are bootable.

**A sleep conflict may be encountered when using certain eSATA chipsets via the eSATA ports when booted to the Accelsior_E2. See the specifications tab for affected solutions where System Sleep mode MUST be disabled in order to ensure reliable operation. Allowing system sleep to occur while one of the affected external drives is connected via the Accelsior_E2 eSATA ports could result in loss of data following wake from sleep. Although the above are our general recommendations for use, wake from sleep has been determined to only be an issue when the Accelsior PCIe is used for startup (SSD or eSATA connected device). We are working with our partners to see that the sleep/wake function is fully supported with all solutions and startup scenarios.
Full 16 channel Implementation

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: http://eshop.macsales.com/Customized_Pages/Framework.cfm?page=sf_firmware.html

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.

240GB Mercury Accelsior_E2 PCI Express SSD Specifications:

Specifications

Controller
Dual LSI® SandForce SF-2281 series processors with 7% Over Provisioning
NAND
Tier 1 Major Multi-Level Cell (MLC) High-Performance Sync-NAND Flash
Form Factor
Low Profile PCI Express
Interface
PCIe 2.0 x2
Expansion Ports1
Two eSATA 6Gb/s ports
Capacity2
240GB useable capacity
Total Flash Memory Components - 256GB
16GB allocated to real-time data redundancy & error correction
Formatted Capacity3
223GiB
SMART Attributes
Standard
Native Command Queuing
up to 32 commands
AHCI Compliant7
Plug and Play installation, no drivers required
Manufacturer Model Number
OWCSSDPHWE2R240
RoHS Compliant
Yes
Format

Physical

Height (max)
120mm (4.74″)
Width (max)
20.7mm (0.81″)
Length (max)
180mm (7.1″)
Weight
85 grams +/- 4 grams
0.18 lbs +/- 3.0 oz

Reliability4

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

Performance5

Sustained Sandy Bridge PC
Reads (up to)
762MB/s
Sustained Sandy Bridge PC
Writes (up to)
763MB/s
Sustained Ivy Bridge PC
Reads (up to)
823MB/s
Sustained Ivy Bridge PC
Writes (up to)
772MB/s
Sustained Mac Pro
Reads (up to)
678MB/s
Sustained Mac Pro
Writes (up to)
687MB/s
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

External Enclosure Qualification7

Qualified and Supported Solutions:
 
Oxford 924
NewerTech miniStack V3
Oxford 934
OWC Mercury Elite Pro Classic-Prev.
Oxford 936
OWC Mercury Elite Pro Dual-Prev.
OWC Mercury Elite Pro Dual Mini-Prev.
OWC Mercury Elite Pro Qx2
NewerTech Guardian Maximus Mini
JMicron 355
Passthrough
All solutions with both
  1. Only eSATA ports
  2. One drive per port
Such as
OWC Mercury Elite Pro RAID Ready
Not recommended due to sleep limitation:
 
Oxford 944
Oxford 946

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

Acoustics

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

Operating System Compatibility6

Windows
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

Manual

Driver8

Accelsior Driver for OS X 10.6.8 & Later, Mac Pro only
  1. Requires 6Gb/s certified cables for connecting to eSATA drives - available separately. Not compatible with port-multiplier enclosures. The eSATA ports do not support hot-swapping. Accelsior_E2 eSATA ports are bootable.
  2. 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. 
  3. 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.
  4. Specific application environments such as temperature and duty cycle will affect the overall reliability.
  5. Performance may vary by machine - see compatibility tab for details.
  6. Accelsior may be used with Bootcamp only if the entire formatted capacity of the Accelsior model is completely dedicated to the Windows partition.
  7. A sleep conflict may be encountered when using certain eSATA chipsets via the eSATA ports when booted to the Accelsior_E2. See the specifications tab for affected solutions where System Sleep mode MUST be disabled in order to ensure reliable operation. Allowing system sleep to occur while one of the affected external drives is connected via the Accelsior_E2 eSATA ports could result in loss of data following wake from sleep. Although the above are our general recommendations for use, wake from sleep has been determined to only be an issue when the Accelsior PCIe is used for startup (SSD or eSATA connected device). We are working with our partners to see that the sleep/wake function is fully supported with all solutions and startup scenarios. 
  8. 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_E2, only one Accelsior_E2 SSD can be installed.
       

Gallery

Benchmarks

Click any of the benchmarks below to view the results.
OWC 240GB Mercury Accelsior_E2 PCI Express Solid State Drive Mfr P/N: SSDPHWE2R240 OWC SKU: OWCSSDPHWE2R240 Hardware RAID Solid State Drive 3 Year OWC SSD Limited Warranty Ships: Same Day only $379.99 Other World Computing SSDPHWE2R240 In Stock, Click to Buy Now
cap
Load Time: 0.088 seconds, Guest ID: 132019909