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DIY Upgrade Bundle: 240GB Mercury Electra 3G Solid State Drive, OWC On-the-Go FW800+USB 3.0/2.0 Kit + Includes OWC 5 Piece Tool Kit. Upgrade, transfer & use original drive as external! OWC Limited Warranty: 1 Year on Enclosure, 3 Years SSD. (DIYSSD240F8)

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OWC DIY Bundle: Mercury On-The-Go Pro + 240GB OWC SSD
OWC Mercury On-The-Go Pro FireWire 800 / USB 3.0 & 2.0,
2.5" 240GB Mercury Electra 3G Solid State Drive and OWC 5 Piece Toolkit

OWC DIY Bundle
Everything you need in one package, immediately ready to assemble.
Backup and store your data with style
and confidence
  • Upgrade, transfer & use original drive as external.
  • Take your data with you - small enough to keep
    in a pocket!
  • Easily add additional laptop storage with
    no AC adapter required.
Examples of how this bus-powered On-The-Go bundle can be used in real world situations:

Power Users / Travelers
Relocate your "home folder" to your On-The-Go Pro and have your files with you at home, at work or on the road without the need to synchronize your machines.
Laptop Owners
Clone your current internal SATA hard drive in your laptop to the Mercury Electra 3G SSD. Then install the Electra 3G SSD in your laptop and retask your original hard drive in the On-The-Go Pro for additional storage space.
iTunes Aficionados
Keep a copy of your iTunes library on your external drive to play on multiple machines.
Add additional storage to your XBox 360 or PS3 game console to store music, media, and other downloads. PS3 even includes a backup utility to protect your internal drive's data.
For Everyone
Have the peace of mind of a complete backup plan. Create a bootable clone of your hard drive at regular intervals so if your computer goes down, your productivity doesn't go down with it. Boot to another computer and keep on working!

Note: The Mercury Electra 3G 960GB SSD is designed for use in Mac and PC systems and is not supported or recommended for use in external, bus-powered enclosures.
  • OWC Mercury On-The-Go Pro
  • 240GB OWC Mercury Electra 3G SSD
  • Utility Software bundle
  • 15" FireWire 800 Connecting Cable
  • 18" USB 3.0 Connecting Cable
  • Carrying Case
  • OWC 5 Piece Toolkit

This OWC SSD Model is compatible with nearly any Mac or PC model with a Serial ATA connection (SATA, SATA 2.0, or SATA 3.0) including:
  • All Mac Pro models
  • All PowerMac G5 models
  • All MacBook Pro models
  • All Mac mini 2006-Current (All Intel Models)
  • iMac 2006-current (All Intel Models)
  • iMac G5
  • All MacBook models
  • Xserve 2009


Mercury On-The-Go includes
  • OWC Mercury On-The-Go Pro FireWire 800 / USB 3.0 storage solution for SATA 2.5" Hard Drives
  • 240GB OWC Mercury Electra 3G Solid State Drive
  • Utility Software bundle
  • OWC 5-Piece Mini Toolkit
    • Nylon Spudger
    • Phillips #00
    • Straight Blade 1.8mm
    • Torx T8
    • Torx T6
  • 15" High Quality Double Shielded FireWire 800 connecting cable (9-9 Pin cable)
  • 18" High Quality Double Shielded USB 3.0 (5 pin mini A - B) certified connecting cable
  • Carrying Case
  • On-The-Go Pro Manual
  • 1 Year OWC Enclosure Limited Warranty with 48-Hour Turnaround Time


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 Electra 3G SSD Specifications:


SandForce 2181 Series Processor with 7% Over Provisioning
Tier 1 Asynchronous MLC NAND Flash Memory
Form Factor
Standard 9.5mm 2.5"
SATA 3Gb/s
240GB useable capacity
Total Flash Memory Components – 256GB
16GB allocated to real-time data redundancy & error correction
Formatted Capacity2
RAID Support
Qualified for single drive and multiple drive production workstation RAID 0/1/10/0+1 and SPAN usage.
SMART Attributes
Native Command Queuing
up to 32 commands
Manufacturer Model Number
RoHS Compliant


Height (max)
7mm (.276″)
Width (max)
70.06mm (2.758″)
Length (max)
100.12mm (3.941″)
77g (0.170 lbs.)


Data Reliability
ECC Recovery: Up to 55 bytes correctable per 512-byte sector
Chip Based Data Encryption: 128-bit AES-compliant
TRIM Support
OS Dependent
Nonrecoverable Read Errors
Less than 1 sector per 1016 bits read
3 Year OWC SSD Limited Warranty
(Standard return policy applies.)


Reads (up to)
Writes (up to)
Read Incompressible
Data Rate (up to)
Write Incompressible
Data Rate (up to)
Random 4K Read4
Up to 60,000 IOPS
Random 4K Write4
Up to 60,000 IOPS
Read Latency
less than 0.1ms
Write 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
  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. Specifications provided by SandForce.
  5. Temperature reporting is currently an unsupported feature because due to the operating characteristics of SSDs, it is highly unlikely one would ever exceed an OWC Mercury SSD's stated operating temperature ceiling of 158F/70C. However, we are looking into supporting this feature in the future via a firmware update. Firmware updates can be found here: http://eshop.macsales.com/tech_center/OWC/SSD.

OWC On-The-Go Pro Specifications:

Bus Interface

  • FireWire 1394B (IEE1394A/B/iLink Compliant), 2 9 Pin (powered) ports
  • USB 3.0 / 2.0 / 1.1 Backwards compatible 9 pin mini "B" port.


  • Oxford 944 and ASMedia 1051e FireWire/USB chipset

Max Data Transfer Rate

  • FireWire 800 - 800Mbps (or 100MB/sec)
  • FireWire 400 - 400Mbps (or 50MB/sec)
  • USB 3.0 - 4000Mbps (or 500MB/sec)
  • USB 2.0 - 480Mbps (or 60MB/sec)
  • USB 1.1 - 12Mbps (or 1.5MB/sec)

Macintosh System Requirements

  • Mac OS 8.6 to 9.2.2 compatible, OS X 10.1.x and later. (10.2 or later required for FW800 and USB 3.0)
  • FireWire 800: Macintosh with FireWire 800 interface, either built in or via PCI FireWire 800 card.
  • FireWire 400: Macintosh with FireWire 400 interface, either built in or via PCI FireWire 400 card.
  • USB 3.0: Macintosh with USB 3.0 interface, either built in or via PCI USB 3.0 card.
  • USB 2.0: Macintosh with USB 2.0 interface, either built in or via PCI USB 2.0 card.

Windows System Requirements

  • FireWire 800: PC with FireWire 800 interface, either built in or via PCI FireWire 800 card.
  • FireWire 400: PC with FireWire 400 interface, either built in or via PCI FireWire 400 card.
  • USB 3.0: PC with USB 3.0 interface, either built in or via PCI USB 3.0 card.
  • USB 2.0: PC with USB 2.0 interface, either built in or via PCI USB 2.0 card.

Related Items

Power Supply

  • Bus Power via FireWire 800 supported on all models equipped with an available FireWire 800 port either factory stock or via add on FireWire 800 PCI Card.
  • Bus Power via FireWire 400 on all models made in 2001 or later via Factory ports or any model with add on FireWire 400 PCI Card.
  • Bus Power via USB on most computers with USB 3.0 port factory stock.
  • Optional AC Adapter* (available as a separate purchase here)

  • * AC adapter not required for most applications provided computer bus supplies appropriate power needs.

Drive Requirements

External Case Dimensions

  • 3.5" (W) x 5.5" (D) x 1" (H)
  • 88.9mm x 139.7mm x 25.4mm

Total Shipping Weight

  • 6.8 oz. (.19kg) bare enclosure

Product Manual

Operating Environment:


  • Dependent on mechanism installed

Relative Humidity

  • Dependent on mechanism installed


  • Dependent on mechanism installed

MTBF (hours)

  • Dependent on mechanism installed


1 Year OWC Enclosure Limited Warranty

View more information about the 1 Year OWC Enclosure Limited Warranty
(Standard return policy applies.)

Manufacturer provided specifications for Other World Computing p/n DIYSSD240F8


OWC DIY Bundle 240GB 2.5" OWC Solid State Drive, OWC Mercury On-The-Go Pro FireWire 800 / USB 3.0 & 2.0 Kit and OWC 5 Piece Tool Kit Mfr P/N: DIYSSD240F8 OWC SKU: OWCDIYSSD240F8 Upgrade, transfer and use original drive as external! On-The-Go: 1 Year OWC Enclosure Limited Warranty
Drive: 3 Year OWC SSD Limited Warranty
Ships: Same Day only $209.00 Other World Computing DIYSSD240F8 In Stock, Click to Buy Now
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