Nextorage NN4LE 2 TB: the sweet-spot DRAM-less PCIe 4.0 G Series LE (2026)
The Nextorage NN4LE 2 TB is a PCIe 4.0 x4 NVMe SSD from the G Series LE line, built on the Phison PS5027-E27T controller with Kioxia BiCS6 3D TLC NAND and a host-memory-buffer design, rated 7,400 MB/s reads and 6,400 MB/s writes with 1,200 TBW of endurance and a 5-year warranty.
Controller & Memory
Nextorage, the Japanese storage brand spun off from Sony in 2019, offers the NN4LE as its G Series LE mainstream PCIe 4.0 line. The 2 TB is the value sweet spot: it adds a higher write rating (6,400 MB/s) and double the endurance of the 1 TB while keeping the same 7,400 MB/s read ceiling. The controller is the DRAM-less Phison PS5027-E27T, paired with Kioxia BiCS6 162-layer 3D TLC NAND, with the address-mapping table held in the host memory buffer rather than on-board DRAM.
The E27T-plus-BiCS6 platform is among the stronger DRAM-less Gen4 designs: it hits the full PCIe 4.0 sequential ceiling while running cool and efficient. At 2 TB the larger NAND array means a bigger SLC write cache and better sustained write behaviour than the 1 TB, narrowing the practical gap to DRAM-equipped Gen4 drives. The single-sided M.2 2280 layout suits laptops and compact desktops as well as standard boards.
The NN4LE ships bare, so this is primarily a PC PCIe 4.0 drive; for a PlayStation 5 it would need a separate heatsink, and Nextorage's heatsink-equipped NEM-PA series is the drop-in PS5 alternative. As a 2 TB Gen4 PC drive, the NN4LE is a well-balanced, well-specified choice.
Storage Comparisons:
NN4LE Performance & Benchmarks
The NN4LE 2 TB is rated at 7,400 MB/s sequential reads and 6,400 MB/s sequential writes over PCIe 4.0 x4, with 1,000,000 random read IOPS and 950,000 random write IOPS. The higher write rating versus the 1 TB reflects the greater NAND parallelism at this capacity.
Nextorage NN4LE 2 TB vs M.2 4.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 4.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- Patriot Viper PV593 1 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV593 2 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV593 4 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV573 2 TB: 14,000 MB/s read, 12,000 MB/s write
- Nextorage NN4LE 2 TB (this drive): 7,400 MB/s read, 6,400 MB/s write
The DRAM-less HMB design keeps heat and power low, so the bare drive runs comfortably with basic airflow. The 2 TB's larger SLC write cache absorbs more of a big transfer before throughput settles to native TLC speed, giving it noticeably better sustained write behaviour than the 1 TB. For gaming, large installs, and everyday desktop work, the NN4LE 2 TB performs close to DRAM-equipped Gen4 drives in the tasks that matter.
Nextorage NN4LE vs Competitors
See how the NN4LE stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Nextorage covers the NN4LE with a 5-year warranty. The 2 TB model is rated for 1,200 TBW (terabytes written) and an MTBF of 1,500,000 hours, with coverage ending at whichever limit comes first: five years from purchase or 1,200 TBW of cumulative writes.
At a typical 30 GB of writes per day, reaching 1,200 TBW would take well over a century, so the 5-year term is the only practical limit. Even at a sustained 100 GB per day, the endurance rating spans about 32 years. For desktop and gaming workloads the TBW ceiling is not a real consideration; the warranty length is the binding factor.
Nextorage NN4LE 2 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Phison PS5027-E27T |
| Memory type [?] | Kioxia BiCS6 3D TLC |
| DRAM [?] | No |
| Read speed (MB/s) [?] | 7400 |
| Write speed (MB/s) [?] | 6400 |
| Read IOPS [?] | 1000000 |
| Write IOPS [?] | 950000 |
| Endurance (TBW) [?] | 1200 |
| MTBF (million hours) [?] | 1500000 |
| Warranty (years) [?] | 5 |
Verdict: Is the NN4LE Worth It in 2026?
The Nextorage NN4LE 2 TB is the pick of the G Series LE line: the efficient Phison E27T controller, current Kioxia BiCS6 TLC NAND, the full 7,400 MB/s read ceiling, a higher write rating and larger SLC cache than the 1 TB, and a 5-year warranty with 1,200 TBW endurance.
It is a strong 2 TB Gen4 drive for a desktop or laptop that wants fast, cool-running mainstream storage with room for a game library. Buyers who want this drive in a PlayStation 5 should choose the heatsink-equipped NEM-PA version, and those needing maximum capacity can step up to the 4 TB NN4LE.
+ Pros
- Full 7,400 MB/s PCIe 4.0 reads with 6,400 MB/s writes
- Larger SLC cache and better sustained write than the 1 TB
- Current Kioxia BiCS6 162-layer 3D TLC NAND
- 1,200 TBW endurance with a 5-year warranty
- Efficient DRAM-less design runs cool
- Single-sided M.2 2280 fits laptops and compact builds
- Cons
- DRAM-less (HMB) — no dedicated DRAM cache
- Ships bare — needs a separate heatsink for PlayStation 5 use
- Write IOPS (950,000) slightly below read
- Limited Western retail availability
- DRAM-equipped Gen4 rivals can hold higher sustained mixed-workload consistency
Buy this or similar SSD Storage:
Video Review
"元"SONYブランドの高性能SSDはいかが？Nextorage Gシリーズ & Gシリーズ LE性能レビュー
