Nextorage NN5PRO 1TB PCIe 5.0 NVMe SSD
The Nextorage NN5PRO 1 TB is a PCIe 5.0 NVMe built on Phison's E26 controller and Micron 232-layer TLC — a combination aimed squarely at enthusiasts who want sequential throughput well above the PCIe 4.0 ceiling.
Inside the NN5PRO sits the Phison PS5026-E26, an 8-channel controller that has become the go-to silicon for first-wave PCIe 5.0 consumer drives. Paired with Micron 232-layer 3D TLC NAND and an onboard DRAM cache, the platform is designed to saturate the PCIe 5.0 x4 bus. Nextorage offers the NN5PRO in 1 TB and 2 TB capacities, with the 2 TB model claiming slightly higher sustained write performance thanks to extra NAND die.
The 1 TB variant is the entry point for builders who want PCIe 5.0 speeds without paying for capacity they may not need. It fits the standard M.2 2280 form factor and uses a single-sided PCB, which means it should clear most motherboard heatsinks and even some laptop slots — though power draw on the E26 platform is notably higher than PCIe 4.0 drives, so laptop compatibility should be confirmed per model. The drive weighs in at a typical NVMe power envelope at idle but can draw 8–10 W under sustained load, which is worth accounting for in SFF builds.
Direct competitors in this segment include the Crucial T705, Corsair MP700, and the WD Black SN850X (the latter a PCIe 4.0 drive often cross-shopped on price). The NN5PRO differentiates itself primarily through pricing and availability rather than any unique hardware feature — the E26 + Micron 232L combination is shared by several drives in this class. Builders who already have a PCIe 4.0 drive and are unsure whether the upgrade is worth it should note that the speed difference is only noticeable in large sequential transfers; gaming and everyday responsiveness remain essentially unchanged.
✅ Storage Comparisons:
🚀 Performance and benchmarks
Nextorage rates the NN5PRO 1 TB at up to 12,400 MB/s sequential reads and 11,800 MB/s sequential writes. These numbers sit near the practical ceiling of the PCIe 5.0 x4 interface, which maxes out around 14,000 MB/s after protocol overhead. The E26 controller relies on an SLC write cache to hit peak burst writes; once that cache fills during large sustained transfers, write speeds drop to the native TLC write rate, which is typically in the 2,000–4,000 MB/s range depending on the workload.
Nextorage NN5PRO 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.
- Nextorage NN5PRO 1 TB (this drive): 12,400 MB/s read, 11,800 MB/s write
- Nextorage NN5PRO 2 TB: 12,400 MB/s read, 11,800 MB/s write
- PNY XLR8 CS3140 1 TB: 7,500 MB/s read, 5,650 MB/s write
- PNY XLR8 CS3140 2 TB: 7,500 MB/s read, 6,850 MB/s write
- Asgard AN4 512 GB: 7,500 MB/s read, 5,500 MB/s write
For everyday desktop use — game loading, application launches, general multitasking — the NN5PRO will feel functionally identical to any high-end PCIe 4.0 drive, because most consumer workloads never push enough sequential data to exploit the extra bandwidth. The real advantage appears in large-file workflows: moving 50+ GB video projects, extracting large archives, or running a scratch disk for DaVinci Resolve. In those scenarios, the doubled bus bandwidth cuts transfer times roughly in half compared to PCIe 4.0 drives.
🖥️ Endurance and warranty
Nextorage covers the NN5PRO with a standard limited warranty, though the listed warranty period of one year is unusually short for a consumer NVMe SSD — most drives in this class carry 5-year terms, so buyers should confirm the actual warranty at the time of purchase. The endurance rating for the 1 TB model is listed at 1.4 PBW (1,400 TBW), which is typical for a Phison E26 drive at this capacity using Micron 232-layer TLC. At a moderate write workload of 30 GB per day, that endurance rating translates to over 120 years of use — far beyond any realistic consumer scenario. Most users will replace the drive long before endurance becomes a factor. As with all SSDs, the warranty is limited by whichever comes first: the warranty period or the TBW rating.
📊 Specs
| Category | Value |
|---|---|
| Capacity [?] | 1 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Phison PS5026-E26 8 Channel |
| Memory type [?] | Micron 232-L, TLC |
| DRAM [?] | Yes |
| Read speed (MB/s) [?] | 12400 |
| Write speed (MB/s) [?] | 11800 |
| Read IOPS [?] | 12400 |
| Write IOPS [?] | 11800 |
| Endurance (TBW) [?] | 1.4 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 1 |
Conclusion
The Nextorage NN5PRO 1 TB is a straightforward PCIe 5.0 NVMe that delivers the expected E26-platform performance without surprises. Builders running Threadripper or Intel Z890 platforms with PCIe 5.0 M.2 slots will see tangible gains in large-file workflows, but gamers and general desktop users would get equivalent real-world performance from a cheaper PCIe 4.0 drive like the WD Black SN850X or Samsung 990 Pro. Consider this drive if your motherboard has a PCIe 5.0 slot and you regularly move tens of gigabytes at a time; skip it if your workload is primarily gaming or office tasks.
+ Pros
- 12,400 MB/s rated sequential reads
- Phison E26 8-channel controller with DRAM cache
- Micron 232-layer 3D TLC NAND
- Single-sided M.2 2280 PCB
- PCIe 5.0 x4 interface
- Cons
- High power draw compared to PCIe 4.0 drives
- No included heatsink in base model
- Requires PCIe 5.0 M.2 slot for full speed
- 1 TB variant has less sustained write headroom than 2 TB
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