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Item#: 9SIA0AJ1334670

Plextor M5P Series PX-256M5P 2.5" 256GB SATA III Internal Solid State Drive (SSD)

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The M5 Pro Series SSD continues to deliver the highest quality storage performance in the industry. Continuing with the legacy and award-winning performance of its predecessors, the M5 Pro SSDs are engineered to optimize consistent high performance, extremely reliable, and provide the highest data protection.

Featuring the latest Marvell 88SS9187 enterprise-grade controller, the M5 Pro Series 256GB SSD delivers continuous high performance. With random read/write speed up to 94,000/86,000 IOPS and sequential read/write speeds up to 540/450 MB/s, handling heavy computing applications or RAID 0 array set up is a breeze. Even under heavy loads the multi-core controller and exclusive Plextor firmware make the M5 Pro extremely fast, reliable and stable.

  • Exclusive and superior firmware
  • Random read/write up to 94,000/86,000 IOPS
  • Sequential read/write 540/450 MB/s
  • Enterprise-grade Monet Controller
  • TrueSpeed Technology for sustained high performance
  • Supports full AES-256 encryption
  • TrueProtect Technology for highest data protection


  • newegg Lightning Fast Performance The combination of the latest Marvell 88SS9187 controller and the best quality Japanese Toshiba Toggle NAND flash creates M5 Pro with enterprise-class performance. The M5 Pro Series 256GB SSD has the ability to consistently deliver random read / write speeds up to 94,000/86,000 IOPS and sequential read/write speeds up to 540/450 MB/s making it suitable for use in a heavy workstation, server role, or Raid 0 configuration.
  • newegg Continuous High Performance Exclusive True Speed technology is designed to prevent drastic drops in read/write speeds that normally occur with SSDs after a prolonged use or when data become heavily fragmented. The M5 Pro Series SSD maintains high speed performance at a like-new level throughout the life of the SSD.
  • newegg Enterprise-Grade Double Data Protection Plextor’s unique double-data protection system protects the integrity and confidentiality of data. Data are stored with total confidence of accuracy through the newest 128-bit error correction code built in the controller and the unique data hold-out algorithm programmed with Plextor’s exclusive firmware. For data confidentiality, the M5Pro supports full drive encryption with an Advanced Encryption Standard (AES) 256 bit algorithm using its US Government AES-validated Marvell controller.
  • newegg Five-Year Warranty The M5 Pro’s high quality and reliability is backed by an iron-clad 5-year warranty from Plextor for total peace of mind. An extensive technical support system will provide support throughout the drive’s long life and make the M5Pro a performance upgrade that you can have total confidence in.
  • newegg Maximum stability Plextor’s SSD are tested using the world’s most advanced SSD testing facilities which guarantee a high level of stability. Plextor enforces a strict enterprise-grade zero error standard and put its SSDs through the toughest tests including passing the rigorous high temperature burn-in test and accelerated operating simulations.

Learn more about the Plextor PX-256M5P


M5P Series
Device Type
Internal Solid State Drive (SSD)
Used For


Form Factor


Max Sequential Read
Up to 540 MB/s
Max Sequential Write
Up to 450 MB/s
4KB Random Read
Up to 94,000 IOPS
4KB Random Write
Up to 86,000 IOPS
2,400,000 hours


Ultra-high performance

Enterprise-grade double-data protection

Professional quality and reliability

Operating System Supported: Microsoft Windows Family / Linux / Mac OS

Agency Approval: UL, CE, BSMI, WHQL, RoHS, FCC, KCC, VCCI

Command Set Support: TRIM, S.M.A.R.T., NCQ, ATA/ATAPI-8

DATA Encryption: AES


Operating Temperature
0°C ~ +70°C
Max Shock Resistance
Max Vibration Resistance
7 ~ 800Hz, 2.17Grms (Operation)

Quick Info


  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years

Customer Reviews of the Plextor PX-256M5P

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  • Christopher D.
  • 2/7/2013 6:18:09 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsPerforms as promised

Pros: Seems superfast. Load times are incredible compared to HDD. Takes up no space in drive bay.

Cons: Expensive.

Did you find this review helpful? Yes No

  • Taylor W.
  • 1/11/2013 2:43:08 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsFast, reliable SSD

Pros: -Fast. Its synthetic benchmark scores are near the top on several different tests, although it is bested by the Samsung 840 on some. It has more consistent read/write arguably than most of the others. Real world performance difference won't exist since this is so close to the other top brands.
-Reliable, with a 5 year warranty. Perhaps this is the reason you should purchase this product. Plextor has a long reputation of having stable, reliable products in storage, from old CD-ROM drives and now SSD's. I bought this because I trust Plextor in continuing to provide me with that extra level of reliability that their brand image relies upon.
-Easy to install
-Newer technology from reliable brands in this product such as Marvell's newest controller and Toshiba 19nm NAND.

Cons: Price used to be a bit high, but the sale right now makes it well worth it.

Other Thoughts: When you update your firmware with these Plextor drives, make sure you turn on IDE instead of ACH in the bios, then switch it back after you complete your firmware update.

4 out of 4 people found this review helpful. Did you? Yes No

  • Andy T.
  • 1/3/2013 3:41:36 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsVery nice SSD

Pros: Nice looking aluminum casing.
5 year warranty.

Cons: None

Did you find this review helpful? Yes No

  • Steven F.
  • 12/25/2012 1:13:54 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week

5 out of 5 eggsAmazing!

Pros: Fast!

Full-drive encryption via AES-256 and 128-bit error correction codes!

Cons: Price! But, you get what you pay for.

Other Thoughts: My first venture into the SSD market, so far it's a success!

After doing some research I decided to stay away from the sandforce controlled drive's as reliably was priority number one. I narrowed my search to three drive's the OCZ vertex 4, Samsung 840 pro, and the Plextor M5Pro. Not a fan of OCZ products and Samsung 840 had some issue's when launched... that left me with the Plextor and could be happier!

2 out of 2 people found this review helpful. Did you? Yes No

  • Robert L.
  • 10/27/2012 3:51:20 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsPlextorsaurus Rex

Pros: Very fast drive...upgraded from a 10,000rpm 600gb WD Velociraptor as my primary drive. Significant improvements in read and write speeds. As a result my boot times and data response have improved dramatically and write times are one of the fastest I've seen. Installation is easy thanks to the included conversion tray and supplied screws.

Cons: Only con I have it doesn't include the software disk
available as a download

Other Thoughts: Core i7 3930k Sandy Bridge-E 3.2 @ 5.1 [o/c ]
Asus Rampage IV Extreme X-79 pci 3.0 quad channel mem
[2] EVGA GTX 670 FTW edition cards in SLI
Plextor M5P Series 256GB Sata III SSD
WD 600GB 10,000rpm Velociraptor
WD 1TB Caviar black edition
Corsair 16GB Dominator DDR3 1866
Corsair Obsidian 800D casing
Corsair HX1000W psu
Corsair H100 water cooler
Corsair digital link
Corsair Vengence 1500 USB 7.1 digital surround headset

3 out of 3 people found this review helpful. Did you? Yes No

  • Ponthep P.
  • 10/24/2012 6:32:30 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsAwesome

Pros: -Very very fast. Especially if you deal with incompressible data, this blows Sandforce based SSDs out of the water.
-5 year warranty.
-Low power consumption.

Cons: -Doesn't come with a free unicorn

5 out of 5 people found this review helpful. Did you? Yes No

  • Danny S.
  • 10/14/2012 9:08:10 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorking Great

Pros: Working great, fast, reliable, easy to install. No problems so far with the drive.

Cons: None.

Other Thoughts: Huge upgrade over a 5400 RPM notebook hard drive.

3 out of 3 people found this review helpful. Did you? Yes No

  • Colin E.
  • 10/12/2012 3:13:07 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsWent bad after 3 days

Pros: Fast when it was working

Cons: Defective

Other Thoughts: Plextor needs to do a better job of QA

0 out of 12 people found this review helpful. Did you? Yes No

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Item#: 9SIA0AJ1334670
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