Samsung PM9E1 2TB NVMe SSD tech specifications
The Samsung PM9E1 2 TB delivers PCIe 5.0 sequential reads up to 14,500 MB/s in an M.2 2242 form factor, using Samsung's Presto controller and 236-layer V8 TLC NAND.
The Samsung PM9E1 2 TB doubles the capacity of Samsung's compact PCIe 5.0 M.2 2242 lineup while maintaining the same 14,500 MB/s sequential read throughput. Like the 1 TB model, it uses Samsung's proprietary Presto controller and 236-layer V8 TLC NAND, combining them in a module that fits thin laptops, handheld gaming devices, and space-constrained mini PCs.
At 2 TB, the PM9E1 has more NAND dies per channel than the 1 TB model, which improves parallelism and helps sustain write speeds for longer before the SLC cache is exhausted. The Presto controller manages eight NAND channels with a DRAM cache for the flash translation layer. Samsung's integrated power management IC helps keep power draw within the limits of compact devices, though sustained workloads will still generate heat that needs to dissipate through the host system.
As an OEM product, the PM9E1 2 TB is not sold directly by Samsung to consumers. It appears in pre-built systems and is available through third-party resellers. Competitors in the M.2 2242 space are limited to PCIe 4.0 drives like the WD Black SN770M and the Solidigm P41 Plus 2242, neither of which can match the PM9E1's PCIe 5.0 throughput. The 2 TB capacity also doubles the endurance rating compared to the 1 TB model, which is relevant for users who plan to keep the drive in service for several years of heavy use.
✅ Storage Comparisons:
🚀 Performance and benchmarks
The Samsung PM9E1 2 TB reaches sequential read speeds up to 14,500 MB/s and sequential writes up to 12,600 MB/s over PCIe 5.0 x4. Random performance is rated at approximately 1,800K read IOPS and 1,600K write IOPS. The 2 TB model benefits from more NAND dies than the 1 TB, which improves sustained write consistency and random performance at higher queue depths.
Samsung PM9E1 2 TB vs M.2 5.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 5.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- PNY XLR8 CS3250 4 TB: 14,900 MB/s read, 13,500 MB/s write
- Samsung 9100 Pro 1 TB: 14,700 MB/s read, 13,300 MB/s write
- Samsung PM9E1 2 TB (this drive): 14,500 MB/s read, 12,600 MB/s write
- Samsung PM9E1 1 TB: 14,500 MB/s read, 12,600 MB/s write
- Samsung PM9E1 4 TB: 14,500 MB/s read, 12,600 MB/s write
In thermally constrained environments like handheld gaming devices and thin laptops, the PM9E1 will throttle under sustained writes as the small form factor limits heat dissipation. For bursty workloads like game loading, file saving, and OS boot, the drive delivers its full rated performance. Sequential writes hold at peak speed while the SLC cache is active, then settle to the native TLC rate. The larger SLC allocation on the 2 TB model provides a more generous cache window than the 1 TB variant, making it better suited for transferring large files and game installations. Samsung's integrated power management IC helps balance performance and thermals in compact devices.
🖥️ Endurance and warranty
As an OEM drive, the Samsung PM9E1 2 TB does not carry a standard Samsung consumer warranty. Coverage depends on the system integrator or third-party reseller. The rated endurance is 1,200 TBW for the 2 TB capacity, allowing approximately 1,095 GB of writes per day over three years. The 2 million hour MTBF rating reflects Samsung's reliability targets for this product. Buyers purchasing through resellers should verify warranty terms at the point of sale, as coverage varies significantly by vendor. Some resellers offer their own return policies and limited warranties on OEM components, typically ranging from one to three years.
📊 Specs
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 5.0 x 4 |
| Controller [?] | Samsung Presto |
| Memory type [?] | Samsung V8 TLC |
| DRAM [?] | Yes |
| Read speed (MB/s) [?] | 14500 |
| Write speed (MB/s) [?] | 12600 |
| Read IOPS [?] | 1800000 |
| Write IOPS [?] | 1600000 |
| Endurance (TBW) [?] | 1200 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 3 |
Conclusion
The Samsung PM9E1 2 TB is the highest-capacity PCIe 5.0 SSD available in the M.2 2242 form factor. Its 14,500 MB/s read speed and 1,200 TBW endurance rating make it the fastest compact SSD on the market for devices that cannot accommodate standard M.2 2280 modules.
For users of compatible laptops and handhelds, the PM9E1 2 TB provides a meaningful upgrade over PCIe 4.0 M.2 2242 drives in both speed and capacity. Desktop users and anyone with M.2 2280 slots should look at the Samsung 990 Pro 2 TB or other full-size PCIe 5.0 drives instead, which offer better value and wider retail support. The PM9E1's OEM status means limited warranty protection for retail buyers.
+ Pros
- Up to 14,500 MB/s sequential read speed
- 2 TB capacity in M.2 2242 form factor
- Samsung Presto PCIe 5.0 controller
- 236-layer V8 TLC NAND
- 1,200 TBW endurance rating
- Improved sustained writes over 1 TB model
- Cons
- OEM drive with no direct Samsung warranty
- Limited retail availability
- Thermally constrained in compact devices
- Higher cost per GB than M.2 2280 drives
- Requires PCIe 5.0 slot for full speed
🛒 Buy this or similar SSD Storage:
✨ Video Review
Best SSDs for PC & Playstation 5
