Nextorage NEM-PAC 1 TB: PS5-optimised PCIe 4.0 SSD with integrated heatsink (2026)
The Nextorage NEM-PAC 1 TB is a PlayStation 5-optimised PCIe 4.0 x4 NVMe SSD with an integrated, non-removable heatsink, based on the Phison PS5027-E27T controller and Kioxia BiCS6 3D TLC NAND, rated 7,400 MB/s reads and 4,800 MB/s writes with a 5-year warranty.
Controller & Memory
Nextorage, the Japanese storage brand spun off from Sony in 2019, positions the NEM-PAC as its most PlayStation 5-focused drive. It shares the DRAM-less Phison PS5027-E27T controller and Kioxia BiCS6 162-layer 3D TLC NAND of the NEM-PAB, but adds an integrated, non-removable heatsink with a cooling structure tuned to keep the drive stable through long PS5 sessions. The heatsink is sized to fit under the console's M.2 expansion cover.
The 1 TB sits at the entry of the line and is the one capacity where the NEM-PAC's tuning shows a trade-off: its sequential write is rated 4,800 MB/s, lower than the NEM-PAB 1 TB's 6,100 MB/s, while its random write rating is high at 1,000,000 IOPS. For PlayStation 5 use this matters little — game loading is read-dominated, and the 7,400 MB/s read clears the console's 5,500 MB/s requirement comfortably. The lower sequential write mainly affects large sustained file copies, which are uncommon on a console.
This is a console-first drive. Its integrated heatsink makes it a clean drop-in for a PS5; in a PC it works in a PCIe 4.0 slot, though the fixed heatsink may interfere with motherboard M.2 covers. Buyers who want the same hardware for a PC, or the higher sequential write at 1 TB, should consider the NEM-PAB or NN4LE instead.
Storage Comparisons:
NEM-PAC Performance & Benchmarks
The NEM-PAC 1 TB is rated at 7,400 MB/s sequential reads and 4,800 MB/s sequential writes over PCIe 4.0 x4, with 780,000 random read IOPS and 1,000,000 random write IOPS. The read speed exceeds the PlayStation 5's 5,500 MB/s requirement, so games load at full console speed.
Nextorage NEM-PAC 1 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 NEM-PAC 1 TB (this drive): 7,400 MB/s read, 4,800 MB/s write
The drive's tuning favours console behaviour: high random write IOPS and a read rating that meets the PS5 spec, with a lower sequential write ceiling than its NEM-PAB sibling. In practice, on a PS5 the difference is invisible during gameplay; it would only surface in large sustained sequential writes, which are rare on a console. The integrated heatsink and cooling structure are designed to hold performance stable during extended sessions inside the PS5's enclosed slot.
Nextorage NEM-PAC vs Competitors
See how the NEM-PAC stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Nextorage covers the NEM-PAC with a 5-year warranty and a 1,500,000-hour MTBF. Nextorage does not separately publish a TBW figure for the NEM-PAC; based on the same Kioxia BiCS6 TLC NAND used across the line at a 600 TBW-per-terabyte rate, the 1 TB is estimated at 600 TBW. Coverage ends at whichever comes first: five years or the rated endurance.
Console gaming writes far less than sustained productivity workloads, so endurance is not a practical limit for PS5 use within the warranty period. At a typical 30 GB of writes per day, 600 TBW would take roughly 54 years to reach. The 5-year warranty term is the binding factor.
Nextorage NEM-PAC 1 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 1 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) [?] | 4800 |
| Read IOPS [?] | 780000 |
| Write IOPS [?] | 1000000 |
| Endurance (TBW) [?] | 600 |
| MTBF (million hours) [?] | 1500000 |
| Warranty (years) [?] | 5 |
Verdict: Is the NEM-PAC Worth It in 2026?
The Nextorage NEM-PAC 1 TB is a console-first PlayStation 5 drive: the Phison E27T controller and Kioxia BiCS6 TLC NAND of the NEM-PAB, wrapped in an integrated cooling structure tuned for stable performance inside the PS5, with a 5-year warranty.
It is a clean drop-in for a PS5 where its 7,400 MB/s read clears the requirement and the fixed heatsink simplifies installation. The caveats are the lower 1 TB sequential write rating and the non-removable heatsink, which can complicate PC use. Buyers who want higher sequential write at 1 TB, or a drive for a PC M.2 slot with its own cover, should look at the NEM-PAB or bare NN4LE.
+ Pros
- PlayStation 5-optimised with an integrated cooling structure
- 7,400 MB/s reads exceed the PS5's 5,500 MB/s requirement
- High random write rating (1,000,000 IOPS)
- Phison E27T with Kioxia BiCS6 162-layer 3D TLC NAND
- 5-year warranty
- Clean drop-in for a PS5 — no separate heatsink needed
- Cons
- Lower sequential write (4,800 MB/s) than the NEM-PAB 1 TB
- Non-removable heatsink can interfere with PC motherboard M.2 covers
- DRAM-less (HMB) — no dedicated DRAM cache
- Nextorage does not separately publish a TBW rating for the line
- 1 TB is tight for a large PS5 library after system reservation
Buy this or similar SSD Storage:
Video Review
The cheapest PS5 upgrade
