Plextor M9Pe 256GB NVMe SSD Review (2026)
The Plextor M9Pe 256GB is the entry capacity of Plextor's first 3D TLC NVMe line — a drive that pairs Toshiba BiCS3 NAND with the Marvell 88SS1093 controller and 512 MB of LPDDR3 DRAM.
Controller & Memory
The M9Pe 256GB uses the Marvell 88SS1093 "Eldora" controller alongside Toshiba 64-layer BiCS3 3D TLC NAND. Unlike many budget drives, the M9Pe includes 512 MB of LPDDR3 DRAM for the flash translation layer. The drive supports NVMe 1.3 over a PCIe 3.0 x4 link and ships in an M.2 2280 form factor.
The 256GB is the smallest capacity in the M9Pe line, which also spans 512GB and 1TB. This capacity suffers from reduced write speeds due to fewer NAND dies sharing the workload — rated at 1,000 MB/s sequential writes versus 2,000 MB/s on the 512GB and 2,100 MB/s on the 1TB. The 160 TBW endurance at 0.3 drive writes per day is adequate for a boot drive. The drive is also available in M9PeG (with a heatspreader) and M9PeY (as a half-height half-length PCIe add-in card with RGB LEDs and a large heatsink).
At launch, the M9Pe competed against the WD Black 2018 (which uses the same BiCS3 NAND) and the Samsung 970 EVO. Both competitors generally outperform the M9Pe, which uses an older controller design that Marvell introduced in 2016.
Storage Comparisons:
M9Pe Series Performance & Benchmarks
Plextor rates the M9Pe 256GB at up to 3,000 MB/s sequential reads and 1,000 MB/s sequential writes, with 180,000 read IOPS and 160,000 write IOPS. The write speed is the lowest in the M9Pe family — less than half the 512GB model's 2,000 MB/s and the 1TB's 2,100 MB/s.
Plextor M9Pe Series 256 GB vs M.2 or PCIe 3.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 or PCIe 3.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- Kingston KC2000 1 TB: 3,200 MB/s read, 2,200 MB/s write
- Kingston KC2000 2 TB: 3,200 MB/s read, 2,200 MB/s write
- Plextor M9Pe Series 512 GB: 3,200 MB/s read, 2,000 MB/s write
- Plextor M9Pe Series 1 TB: 3,200 MB/s read, 2,100 MB/s write
- Plextor M9Pe Series 256 GB (this drive): 3,000 MB/s read, 1,000 MB/s write
AnandTech's review of the M9Pe platform found that the aging Marvell 88SS1093 controller, originally designed for planar MLC and TLC, limits the drive's ability to extract full performance from the BiCS3 NAND. The WD Black, which uses the same Toshiba BiCS3 flash but with a newer in-house controller, consistently outperforms the M9Pe. The Samsung 970 EVO also pulls ahead in most benchmarks. For everyday desktop use, the M9Pe 256GB is fast enough to feel responsive, but it is not the performance leader in its generation.
Plextor M9Pe Series vs Competitors
See how the M9Pe Series stacks up against other M.2 or PCIe 3.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
The Plextor M9Pe 256GB carries a 160 TBW endurance rating with a five-year limited warranty. At 0.3 drive writes per day, this translates to roughly 87 GB of writes per day over the warranty term. For a typical consumer writing 20 to 40 GB per day, the endurance ceiling is roughly 10 to 22 years away. The drive carries a 1.5 million hour MTBF rating. Plextor handles warranty claims through the retailer or directly, and the five-year term applies without product registration.
Plextor M9Pe Series 256 GB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 256 GB |
| Interface [?] | M.2 or PCIe 3.0 x 4 |
| Controller [?] | Marvell 88SS1093 |
| Memory type [?] | Toshiba TLC |
| DRAM [?] | 512MB LPDDR3 |
| Read speed (MB/s) [?] | 3000 |
| Write speed (MB/s) [?] | 1000 |
| Read IOPS [?] | 180000 |
| Write IOPS [?] | 160000 |
| Endurance (TBW) [?] | 160 |
| MTBF (million hours) [?] | 1.5 |
| Warranty (years) [?] | 5 |
Verdict: Is the M9Pe Series Worth It in 2026?
The Plextor M9Pe 256GB is a capable PCIe 3.0 NVMe SSD with DRAM cache and a five-year warranty, but it is outperformed by similarly-priced competitors like the Samsung 970 EVO and WD Black that benefit from newer controller designs. Buyers who find the M9Pe 256GB at a deep discount get a reliable boot drive with decent reads and adequate endurance. Those paying full retail should look at the Samsung 970 EVO 250GB, which delivers better real-world performance at a similar price.
+ Pros
- 3,000 MB/s sequential reads on PCIe 3.0
- 512 MB LPDDR3 DRAM cache
- Toshiba BiCS3 3D TLC NAND
- Five-year warranty
- Available as bare M.2, with heatspreader, or AIC
- Cons
- 1,000 MB/s writes — lowest in the M9Pe family
- Aging Marvell 88SS1093 controller limits performance
- Trails Samsung 970 EVO and WD Black in benchmarks
- Smaller SLC cache than the 512GB and 1TB models
Buy this or similar SSD Storage:
Video Review
✅Plextor M9PeG M.2 2280 NVMe 256GB SSD - 2018 Review
