HP EX950 2TB NVMe SSD Review — PCIe 3.0 High Capacity (2026)
The HP EX950 2TB is the range-topping capacity of HP's NVMe SSD line, combining 3,500 MB/s reads, 1,300 TBW endurance, and Micron 64-layer TLC on the proven Silicon Motion SM2262EN controller.
Controller & Memory
The EX950 2TB is manufactured by BIWIN Storage under HP's brand authorization. Under the label is a rebranded Silicon Motion SM2262ENG controller paired with Micron 64-layer 3D TLC NAND and two 1,024 MB Micron DDR3 DRAM chips. The 2TB model represents the full potential of the SM2262EN platform: maximum NAND die for parallel writes, the largest SLC cache, and the highest endurance in the EX950 range.
Rated at 3,500 MB/s sequential reads and 2,900 MB/s sequential writes, the 2TB EX950 matches the smaller capacities on peak speeds. The differentiator is sustained write performance: with more NAND die available, the 2TB model maintains higher write throughput after the SLC cache fills — typically around 2,000–2,200 MB/s versus 1,200–1,500 MB/s on the 512GB model. Endurance is rated at 1,300 TBW, the highest in the EX950 lineup.
HP issued a firmware update that significantly improved performance on early EX950 units. The updated firmware resolved write consistency issues that affected launch units. The drive is double-sided with NAND on both faces of the M.2 2280 PCB. It competes with the Samsung 970 EVO Plus 2TB, the ADATA SX8200 Pro 2TB, and the WD Black SN750 2TB.
Storage Comparisons:
EX950 Performance & Benchmarks
The EX950 2TB is rated for 3,500 MB/s sequential reads and 2,900 MB/s sequential writes, with 410K random read IOPS and 380K random write IOPS. TechPowerUp's review of the 2TB model with updated firmware found it was one of the fastest SSDs they had tested at the time, beating the Samsung 970 Pro in several real-life benchmarks. The SM2262EN controller's strength is sustained performance — random IO stays consistent even as the drive fills.
HP EX950 2 TB vs M.2 3.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 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.
- HP EX950 2 TB (this drive): 3,500 MB/s read, 2,900 MB/s write
- ADATA SX 8800 Pro 512 GB: 3,500 MB/s read, 2,700 MB/s write
- ADATA SX 8800 Pro 1 TB: 3,500 MB/s read, 2,700 MB/s write
- ADATA XPG Spectrix S40G RGB 256 GB: 3,500 MB/s read, 3,000 MB/s write
- ADATA XPG Spectrix S40G RGB 512 GB: 3,500 MB/s read, 3,000 MB/s write
The dynamic SLC cache on the 2TB model is generous, absorbing 100–200 GB of burst writes at full speed before folding to TLC rates. Native TLC writes hold around 2,000–2,200 MB/s on the 2TB model, which is strong for PCIe 3.0. Gaming load times are fast and indistinguishable from other high-end PCIe 3.0 drives. Content creators benefit from the 2TB capacity for video project files and scratch disks, and the sustained write performance handles large file transfers well.
HP EX950 vs Competitors
See how the EX950 stacks up against other M.2 3.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
HP rates the EX950 2TB at 1,300 TBW with a five-year limited warranty. At 50 GB of writes per day, the endurance budget covers roughly 71 years. The 2 million hour MTBF is a population-level reliability estimate. HP provides SSD management tools for health monitoring and firmware updates. Warranty service is handled through HP's RMA process.
HP EX950 2 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 3.0 x 4 |
| Controller [?] | Silicon Motion SM2262EN |
| Memory type [?] | Micron 64L 3D TLC |
| DRAM [?] | Nanya or Micron 512 - 2TB DDR3 |
| Read speed (MB/s) [?] | 3500 |
| Write speed (MB/s) [?] | 2900 |
| Read IOPS [?] | 410000 |
| Write IOPS [?] | 380000 |
| Endurance (TBW) [?] | 1300 |
| MTBF (million hours) [?] | 2 |
| Warranty (years) [?] | 5 |
Verdict: Is the EX950 Worth It in 2026?
The HP EX950 2TB is a high-capacity PCIe 3.0 NVMe SSD that delivers the full potential of the SM2262EN controller: 3,500 MB/s reads, strong sustained writes, and 1,300 TBW endurance. With the updated firmware, it performs competitively against the Samsung 970 EVO Plus and WD Black SN750 at the same capacity. The 2TB model is the pick of the EX950 range for anyone who needs bulk NVMe storage with proven TLC performance. The main caveats are the early firmware issue (verify and update) and the double-sided PCB, which may not fit all laptops. For desktop builders and content creators who need 2TB of fast NVMe storage, the EX950 is a strong value.
+ Pros
- 3,500 MB/s reads and 2,900 MB/s writes on PCIe 3.0
- 1,300 TBW endurance — generous for a consumer drive
- 2TB capacity for large game libraries or video projects
- SM2262EN controller with strong sustained write performance
- 2 GB DDR3 DRAM cache on the 2TB model
- Cons
- Early firmware had performance issues — verify update
- Double-sided PCB limits slim-laptop compatibility
- PCIe 3.0 — surpassed by Gen4 and Gen5 drives
- HP-branded but manufactured by BIWIN — limited SSD heritage
- DDR3 DRAM is older generation
Buy this or similar SSD Storage:
Video Review
HP EX 950 SSD M.2 NVME | The FASTEST SSD i have Used 😝 3500 MB/S
