DIY Bundle

Name: DIY Kit: OWC Accelsior S + 250GB Electra 6G Solid-State Drive Bundle.
Brand: OWC
SKU: OWCSSDACL6GE250
Price: 84.75 USD
Availability: InStock
Rating: 4.95 (44 reviews)

250GB OWC 6G SSD
and OWC Accelsior S

Mac / PC / PCIe

Mercury Electra® 6G and Accelsior S

An SSD for your PCIe Slot

Give your Mac Pro tower or PC a 6G performance boost

The OWC 6G SSD and OWC Accelsior S DIY bundle is the simple solution to add a high speed SATA 6G drive to PCs or silver Mac Pro towers otherwise restricted to 3G architecture. Combined with the high-performance Mercury Electra SSD, Accelsior S brings cutting edge 6G performance to your SATA 3G system.

High-performance storage

Delivering the latest in flash NAND and controller technology, utilizing SLC and 3D NAND for long-lasting, power-efficient performance, the OWC Mercury 6G SSD line offers a powerful combination of performance and reliability for demanding everyday computer users.

Internal storage expansion at lightning speed

With more than 500 MB/s of throughput, the Accelsior S dual-lane PCIe 2.0 card delivers flexible storage expansion – with a speed boost – to your Mac or PC. Accelsior S is the perfect complement to OWC's Mercury family of high-performance SSDs.

With no drivers or extra software needed, upgrading your Mac Pro or PC tower with a Mercury Extreme Pro and Accelsior S is a breeze.

SPECS
GALLERY
VIDEO
COMPATIBILITY
INCLUDES
WARRANTY
RATINGS

250GB Mercury Electra 6G SSD Specifications:

Specifications

Controller

Silicon Motion SM2259XT with 3% over-provisioning

NAND Flash Components

Synchronous Triple-Level Cell (TLC) 3D NAND Flash

Form Factor

Standard 7mm 2.5"

Interface

SATA 6.0 Gb/s

Capacity¹

250GB Useable Capacity
Total Flash Memory Components: 256GB
6GB Allocated to real-time data redundancy and error correction

Formatted Capacity¹

233 GiB

RAID Support

Yes

SMART Attributes

Standard²

Native Command Queuing

Up to 32 simultaneous commands

RoHS Compliant

Yes

Reach Certification

Yes

Format

Unformatted (Instructions on formatting here)

Physical

Height (max)

7 mm (0.276 in)

Width (max)

70.06 mm (2.758 in)

Length (max)

100.12 mm (3.941 in)

Weight

60.0 g (0.13 lbs)

Reliability

MTBF (Mean Time Between Failures)

1,500,000 hours

Security

ATA Security Feature Command Set and Password Login Support

Error Correction

Built-in ECC

TRIM Support

OS Dependent

Wear Leveling

Supported

Nonrecoverable Read Errors

Less than 1 sector per 10¹⁵ bits read

Compatibility

Mac OS Compatibility

Yes

PC OS Compatibility

Yes

Other Requirements

Requires a Mac, PC, or drive enclosure with an available SATA drive bay. SATA III (6.0 Gb/s) required for best performance.

Performance

Average Access Time

<0.1 ms

Sequential Read (Max)

535MB/s

Sequential Write (Max)

465MB/s

Random 4K Read

Up to 54,000 IOPS

Random 4K Write

Up to 81,000 IOPS

Power

Active (Max)

2.1W

Idle Mode (Max)

0.1W

Environmental (Operating)

Shock

1500 G max at 0.5 ms

Temperature (°F)

32°F to 158°F

Temperature (°C)

0°C to 70°C

Humidity

5% to 95% non-condensing

Environmental (Non-Operating)

Shock

1500 G max at 0.5 ms

Temperature (°F)

-40°F to 185°F

Temperature (°C)

-40°C to 85°C

Acoustics

Idle (Typical)

0.0 bels

Seek (Typical)

0.0 bels

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.
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.

Accelsior S Specifications:

OWC Part Number

OWCSSDACL6G.S

Form Factor

Half height, half length

HBA controller

Asmedia 1062

Interface

PCIe 2.0 x2

SMART Attributes

Depends on mechanism installed

AHCI Compliant

Yes – Plug and Play installation, no drivers required

OS compatibility

Mac OS X 10.6 and up
Windows Server 2008 and higher
Not compatible as a Windows boot drive on a Mac

Supported mechanisms

All 2.5" HDD and SSD SATA 1.5, 3.0, 6.0Gb/s

Performance

Read: up to 550MB/s – this depends on mechanism installed
Write: 530MB/s – this depends on mechanism installed

RoHS Compliant

Acoustics

0.0 bels for both Idle and Seek

Environment

Environmental (Operating)
- Temperature (°F) 32° — 158°
- Temperature (°C) 0° — 70°
Environmental (Non-Operating)
- Temperature (°F) −40° — 185°
- Temperature (°C) −40° — 85°

Manufacturer provided specifications for Other World Computing p/n SSDACL6GE250 UPC#: 812437026948

Gallery

Video

Note about throughput:

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 S into any open x4 or x16 PCIe 2.0 slot will deliver full throughput
- 2008 Mac Pro. These models have two x16 PCIe 2.0 slots, which enable Acceslsior S to deliver full throughput. Installing Accelsior S into of the two x4 PCIe 1.0 slots will result in Accelsior S 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 S as anything but as a first generation one-lane card. As a result, Accelsior S performance will be limited to 190-200MB/s data rates. If maximum data rate speedis desired, we recommend the installation of a 2.5" OWC Mercury SSD in an open Mac Pro drive bay.

This OWC SSD is compatible with: Learn how to find your Mac's model ID

Mac Pro 12-Core (Mid 2012)

(June, 2012)

Model ID: MacPro5,1

2.4GHz, 2.66GHz, 3.06GHz

Detailed specs

Install Videos

Mac Pro 6-Core (Mid 2012)

(June, 2012)

Model ID: MacPro5,1

3.33GHz

Detailed specs

Install Videos

Mac Pro 4-Core (Mid 2012)

(June, 2012)

Model ID: MacPro5,1

3.2GHz

Detailed specs

Install Videos

Mac Pro 4-Core (Mid 2010)

(July, 2010)

Model ID: MacPro5,1

2.8GHz, 3.2GHz

Detailed specs

Install Videos

Mac Pro 12-Core (Mid 2010)

(July, 2010)

Model ID: MacPro5,1

2.66GHz, 2.93GHz

Detailed specs

Install Videos

Mac Pro 8-Core (Mid 2010)

(July, 2010)

Model ID: MacPro5,1

2.4GHz

Detailed specs

Install Videos

Mac Pro 6-Core (Mid 2010)

(July, 2010)

Model ID: MacPro5,1

3.33GHz

Detailed specs

Install Videos

Mac Pro 8-Core (Early 2009)

(March, 2009)

Model ID: MacPro4,1

2.26GHz, 2.66GHz, 2.93GHz

Detailed specs

Install Videos

Mac Pro 4-Core (Early 2009)

(March, 2009)

Model ID: MacPro4,1

2.66GHz, 2.93GHz, 3.33GHz

Detailed specs

Install Videos

Mac Pro 8-Core (Early 2008)

(January, 2008)

Model ID: MacPro3,1

2.8GHz, 3.0GHz, 3.2GHz

Detailed specs

Install Videos

Mac Pro 4-Core (Early 2008)

(January, 2008)

Model ID: MacPro3,1

2.8GHz

Detailed specs

Install Videos

Mac Pro 8-core (Early 2007)

(April, 2007)

Model ID: MacPro2,1

3.0GHz

Detailed specs

Install Videos

Mac Pro 4-core (Mid 2006)

(August, 2006)

Model ID: MacPro1,1

2.0GHz, 2.66GHz, 3.0GHz

Detailed specs

Install Videos

Xserve (Late 2006)

(August, 2006)

Model ID: Xserve1,1

dual 2.0GHz, dual 2.66GHz, dual 3.0GHz

Detailed specs

Xserve (Early 2008)

(January, 2008)

Model ID: Xserve2,1

2.8GHz, dual 2.8GHz, dual 3.0GHz

Detailed specs

Xserve Quad-Core (Early 2009)

(April, 2009)

Model ID: Xserve3,1

2.26GHz

Detailed specs

Xserve 8-Core (Early 2009)

(April, 2009)

Model ID: Xserve3,1

2.26GHz, 2.66GHz, 2.93GHz

Detailed specs

PC Desktops

Compatible with Intel / AMD Process based PCs capable with the specifications listed above.

PCIe capable servers

Compatible with PCIe expandable servers with the specifications listed above.

OWC Mercury Helios

Thunderbolt PCIe
expansion chassis

More info

NOT COMPATIBLE
HP DL 380 G7
HP DL 380 G8

NOT COMPATIBLE
Dell PowerEdge R620

NOT COMPATIBLE
Dell PowerEdge T620

Includes

(1) Mercury Electra 6G SSD
(1) Accelsior S PCIe to 2.5" 6Gb/s SATA SSD Host Adapter
OWC Accelsior S Quick Start Guide

Warranty

The best warranty is one you never have to use - but should the need occur - we're proud to provide a superior level of support and service coverage to our customers.

3 Year OWC SSD Limited Warranty

3 Year OWC Limited Warranty

Even when not used, we understand the peace of mind afforded by a longer warranty period. OWC's industry leading coverage is a testament to our confidence in the reliability of the solutions that we offer. OWC solutions are engineered to demanding quality standards in order to deliver the most reliable, highest performance available on the market in each storage category.

Customer Ratings

Write a Review 4.9 / 5 40 out of 44 (91%) reviewers would recommend this product

1 2 3

Verified Buyer

Reviewer: Musicbydesign Location: St, Louis, MO Age: 55-65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Boom! SATA3 on my Early 2008 Mac Pro May 7, 2020 Stuck a 1TB SSD drive on the card, plugged it in, and awwaaaayyy I go, HUGE difference, WELL worth the price of both the card and the drive. Installation could NOT be any easier. No drivers needed. Highly recommended!

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: MadhatterX Location: Boston Age: 35-44 Experience Level: Power User Owned Product: over 6 months

Rating: 5/5 Great combo June 27, 2019 I purchased the 480GB Pro 6G SSD and Accelsior S adapter into my 2010 Mac Pro 3.46GHz 12-core, it was easy to install and the speed benefit was instantly recognized. Previously, I was running an SSD from the drive bay not realizing that the SATA 6Gbps capability of the SSD is reduced to SATA 3Gbps speeds. With the Accelsior S adapter the 6Gbps speeds were achieved and the performance increase allows my 2010 MacPro to outperform my fully loaded 2018 iMac 18,3 (i7-7700K). Booting into MacOS takes about 5 seconds and overall system response time is almost instant.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 480GB Extreme Pro 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: stuie Location: Northern California Age: 35-44 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Speedy! January 14, 2019 The install of this card/SSD is as straightforward and as simple as can be. Formatting is a breeze, and the card sped my Mac Pro up significantly. I had an SSD in it prior to this, but with the Accelsior, it seems a bit faster than the SATA connected SSD.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 1.0TB Electra 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: artifex Location: way above sea level Age: 55-65 Experience Level: Power User Owned Product: 3-4 months

Rating: 5/5 my mid-2010 Mac Pro is flying now... November 5, 2018 I was a little nervous about this (both the install and the technology, which I was too lazy to read about). I've had really good luck with OWC, though, so I gave it a shot.

**big** improvement over the same SSD in one of the normal drive slots.

Only weird thing is that the system sees it as an extrnal drive.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: MACuserSince1985 Location: California Age: 55-65 Experience Level: Power User Owned Product: over 6 months

Rating: 5/5 Extended the life of My 2008 Macpro 3,1 October 16, 2018 Mac Sales, OWC Accelsior S with and a 2.0 GB SSD made my 2008 MacPro 3,1 not only usable, but a joy to use again. The Accelsior S really, really sped up my old mac, I am now running Mojave 10.14 (through a 3rd party patch) and the computer feels as good as new.

I highly recommend Mac Sales and commend them and OWC for coming up with such innovative products that extend the life of MAC Desktop and Laptop computers.

Seriously, my 10 year old MAC Pro is running better then new !

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: Anwar Location: Lloydminster,AB Age: 35-44 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 Worked great on Dell PE R710 September 30, 2018 I was looking for a solution to get maximum out of dell PowerEdge R710 server. Onboard SATA ports only support ATA/IDE mode and SSD drive was getting 200 MBPS read write speeds. With this card AHCI is enabled and I got 530 MBPS read write and 56000 IOPS for read and write. I am using 1 TB samsung 850 ssd drive as boot drive on this card. One thing I did was I removed dell perc 6 card from the riser and updated bios to latest version 6.6.0 I would definitely recommend this to anyone looking to utilize old r710 servers for ssd drives. No drivers needed.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: supremepork

Rating: 5/5 Flawless September 27, 2018 Works as advertised; no issues installing macOS, no issues booting.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 480GB Extreme Pro 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: finspeed Location: SoCentralCoast CA Age: Over 65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 So good, I bought 2 September 13, 2018 These PCIe host adapters work really well in my mid-2012 Mac Pro. Heck, I bought two of them for the two SSDs I have.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: DroiddProductions Location: Toronto, Canada Age: 35-44 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Great product! September 11, 2018 I put this card in my mid 2010 Mac Pro. I used a 6g 500gb ssd with it and created a boot disk. My Mac booted perfectly and recognized the drive. I now enjoy the full read/write specs of the drive. This improved my computers performance beyond my expectations. Great product!

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: Aric Location: NJ Age: 35-44 Experience Level: IT Professional Owned Product: over 6 months

Rating: 5/5 Works great, drive bootable without driver July 6, 2018 The attached drive boots fast and doesn’t require any special drivers. Installs easily in a Mac Pro 2009-2010. I’ve had it for quite a while now and have had no issues.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: Ludovic Location: Beverly, MA Age: 55-65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Bringing back to speed Mac Pro Early 2008 (3,1) June 29, 2018 With the new Mac Pro only available in 2019, I decided to take the plunge and upgrade once more my 10-year old faithful Mac Pro, by adding 32GB of memory (and keeping 8GB of the previous 16GB to total 40GB) and installing a PCIe SSD drive. This allowed to install the OS (OSX El Capitan is the last update possible on this machine) and apps on the SSD and keep all user files on the original Macintosh HDD. After one failed attempt to do the configuration myself, I redid the process successfully exactly as explained in OWC's Youtube video (https://www.youtube.com/watch?v=Ou-heXnkPP4) except I did not clean/delete any system files or apps from the HDD so to keep it as a backup bootable for safety. The total boot time is now 2 minutes instead of 20. I also created a FCPX "scratch library" on the SSD that speeds up performance tremendously as FCPX constantly refreshes projects in the library during editing; then when finished I move the project (in FCPX) to the original HDD library. All other apps of course load and execute much faster. Perfect way to keep an old Mac Pro going.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 1.0TB Extreme Pro 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: RaoulDuke Location: Washington DC Age: 25-34 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 Fast! May 20, 2018 I used to have a SSD connected in the lower optical bay. The speed on this set is way better.

I would recommend this item to a friend! Customer Videos:

Verified Buyer

Reviewer: CVreeland Location: Texas Age: 45-54 Experience Level: Power User Owned Product: 5-6 months

Rating: 5/5 Great speed boost! April 28, 2018 I’ve been booting my 2008 Mac Pro from a 500 GB 6Gb/s OWC SSD since November with no problems whatsoever. Installed it in 5 minutes, then cloned my old boot drive to it using Carbon Copy Cloner & has been running flawlessly since.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: photograbber Location: Redding CA Age: Over 65 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Took a 2010 Mac Pro from old to FAST April 18, 2018 This unit along with a 6G SSD made a big difference in my 2010 Mac Pro. Easily doubled the read/write speed of the 6G SSD compared to the sata installation. Well worth the price and very easy to install.

I would recommend this item to a friend! This review is from (*) OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter *Open Box*. Customer Videos:

Verified Buyer

Reviewer: cesar

Rating: 5/5 excellent buy April 8, 2018 I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 2.0TB Electra 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer Top 250 Contributor

Reviewer: 377Ohm Location: Lausanne, Switzerland Age: 45-54 Experience Level: Power User Owned Product: 1-3 months

Rating: 5/5 Excellent product providing additional disk March 29, 2018 I have bought this host adapter plus a 1TB OWC 6G SSD in order to provide an additional disk for my 2010-vintage Mac Pro. The disk mounts as an external disk ergo is suitable for loading macOS (as opposed to any version of Windows, which must be loaded from an internal disk). You just plug the adapter in, and it works without any hassles.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Reviewer: The3DCie Location: France Age: 35-44 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Excellent! March 17, 2018 Great card to speed up a SSD in an aluminium MacPro AND keep your 4 usual SATA slots for classic HDDs!

It's only slightly more expensive than a 2,5" adaptor but it's so much more useful!

Highly recommended if you want to get the best out of any SSD in your MacPro.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: Bean Location: Marrero. La. Age: 55-65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 Easy to install and storage upgrade. February 19, 2018 This product provided additional storage space and increased the speed of my computer.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 1.0TB Electra 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: VBtechie Location: Virginia Beach, VA Age: 55-65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Fantastic way to renew an old Mac February 18, 2018 My MacPro 2010 had become sluggish to the point that from boot until first moment of usability was around 20 minutes! I installed this SSD and put a fresh OS on it. Now my Mac is like a brand new computer, and I’m no longer afraid to reboot.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 1.0TB Electra 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: KenTX Location: Dallas, TX Age: 45-54 Experience Level: IT Professional Owned Product: less than a month

Rating: 5/5 This product is a real gem! January 1, 2018 Got this and a 2TB SSD for my Z800 and it just works without complication. I am seeing 520+ MB/Sec read and write speeds.

If you have an older computer/workstation and are stuck with older Sata 2, I highly recommend this product. It's a no brainer. ;)

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer Top 250 Contributor

Reviewer: vgs42 Location: Houston, TX Age: Over 65 Experience Level: IT Professional Owned Product: over 6 months

Rating: 5/5 Accelsior S: Adapter frees up main HD Bays December 19, 2017 Bought 2 of these April , 2017 one for me other for gift. Makes better use as a boot drive for Mac Pro(Early 2008) & frees up other 4 HD bays.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: pideja Location: Montreal, Qc Age: Over 65 Experience Level: Home User Owned Product: less than a month

Rating: 5/5 It was about time! October 17, 2017 Purchased this to "boost" performances on my old MacPro version 3.1. Don't know why I waited so long. Delivery was quick, the SSD disk responds well and migrating my principal drive was a breeze using Carbon Copy Cloner. From start to finish, from installation, formatting and cloning the ex-principal drive onto the SSD drive took a little under one hour!

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 500GB Electra 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: prandall Location: South Weymouth, MA Age: Over 65 Experience Level: Power User Owned Product: less than a month

Rating: 5/5 Just Great Availabilty with High Sierra not Raid Compatible. October 8, 2017 Thanks so much for having a 2TB option available to use in place of my Apple Raid. Apple will eventually support Fusion Drives, but no mention of Raid support. This bundle is so easy to install. I transferred all of my files from the Raid using Carbon Copy Cloner, booted up to the new drive and installed macOS High Sierra and even updated to the Supplemental Update and am now good to go. I’ll probably be back for the recommended graphics card soon.

I would recommend this item to a friend! This review is from DIY Kit: OWC Accelsior S + 2.0TB Extreme Pro 6G Solid-State Drive Bundle.. Customer Videos:

Verified Buyer

Reviewer: CheapOldGuy Location: Houston, TX Age: 55-65 Experience Level: Home User Owned Product: 1-3 months

Rating: 5/5 As Advertised August 4, 2017 I was already running an SSD as my boot drive on a Mac Pro 5.1, so I didn't gain a huge increase in startup speed, but my apps sure seem to run smoother. Easy install, up and running in 5 minutes or less. A very cost-effective way to update your hardware, AND free up a drive slot.

I would recommend this item to a friend! This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

Verified Buyer

Reviewer: MrScreens Location: Santa Rosa, CA Age: 55-65 Experience Level: Power User Owned Product: over 6 months

Rating: 5/5 Speed Demon June 6, 2017 I bought this adapter to install an OWC 480GB SSD in my old Mac Pro (Early2008). Super simple installation, fantastic results. Really boosted my Mac's performance.

This review is from OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter. Customer Videos:

1 2 3

DIY Bundle 250GB
OWC 6G SSD and OWC Accelsior S Mfr P/N: SSDACL6GE250 OWC SKU: OWCSSDACL6GE250 DIY kit includes a Mercury Electra 6G SSD and Accelsior S for installation in a PCIe Slot 3 Year OWC Limited Warranty Ships: Same Day

Reviews (44)

Only ~~$99.98~~Bundle Priced for $84.75

Add to Cart

Additional Capacities & Kits: 6G SATA Storage Expansion

Card Only
- Ships: Same Day
- Only $49.99
- Cyber Saver $44.99

OWC Mercury Electra 6G SSD Bundles

120GB
- Ships: Same Day
- Only $84.98
- Bundle Priced for $73.64
250GB
500GB
- Ships: Same Day
- Only $139.98
- Bundle Priced for $123.75
1.0TB
- Ships: Same Day
- Only $219.98
- Cyber Saver $179.75
2.0TB
- Ships: Same Day
- Only $379.98
- OWC Price $379.75

OWC Mercury Extreme Pro 6G SSD Bundles

240GB
- Ships: Same Day
- Only $129.98
- OWC Price $114.51
480GB
- Ships: 40 Days
- Only $179.98
- OWC Price $169.75
1.0TB
- Ships: Same Day
- Only $279.98
- OWC Price $249.51
2.0TB
- Ships: Same Day
- Only $866.99
- Bundle Priced for $459.88
4.0TB
- Ships: Same Day
- Only $949.74
- Bundle Priced for $929.88

DIY Bundle

250GB OWC 6G SSD and OWC Accelsior S

Release Candidate (RC) firmware set

250GB Mercury Electra 6G SSD Specifications:

Specifications

Physical

Reliability

Compatibility

Performance

Power

Environmental (Operating)

Environmental (Non-Operating)

Acoustics

Accelsior S Specifications:

OWC Part Number

Form Factor

HBA controller

Interface

SMART Attributes

AHCI Compliant

OS compatibility

Supported mechanisms

Performance

RoHS Compliant

Acoustics

Environment

Gallery

Video

Includes

Warranty

Customer Ratings

250GB OWC 6G SSD
and OWC Accelsior S