Fanxiang S660 2TB NVMe SSD tech specifications (2026)
Fanxiang's S660 SSD use PCIe M.2 4.0 x 4 computer expansion bus standard. Read below about this NVMe SSD on this site.
Controller & Memory
Fanxiang's 2TB S660 NVMe SSD works on Phison PS5021-E21T 4 Channel. The internal SSD write a data location map on DRAM No to run a games without delays. The S660 comes equipped with Micron 176-L QLC flash memory. This drive also available in 3 capacities, including 4 TB, 512 GB and 1 TB.
Storage Comparisons:
S660 Performance & Benchmarks
NVMe SSD works on PCIe M.2 4.0 x 4 bus with read speeds 5000 Mbps, and sequential write speeds 4500 Mbps. S660 has input/output performance 4500000 on writing and 5000000 on reading operations.
Fanxiang S660 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
- Fanxiang S660 2 TB (this drive): 5,000 MB/s read, 4,500 MB/s write
Fanxiang S660 vs Competitors
See how the S660 stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Manufacturer give 2 years warranty for this product that limited by endurance 60 Total Bytes Written. As well it has 1500000 million hours MTBF.
Fanxiang S660 2 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Phison PS5021-E21T 4 Channel |
| Memory type [?] | Micron 176-L QLC |
| DRAM [?] | No |
| Read speed (MB/s) [?] | 5000 |
| Write speed (MB/s) [?] | 4500 |
| Read IOPS [?] | 5000000 |
| Write IOPS [?] | 4500000 |
| Endurance (TBW) [?] | 60 |
| MTBF (million hours) [?] | 1500000 |
| Warranty (years) [?] | 2 |
Verdict: Is the S660 Worth It in 2026?
S660 (2TB) produced by Fanxiang may work on PCIe Gen4 that is twice faster than previous bus standard. The maximum write speed is 4500 Mbps, that is pretty good for this computer expansion bus standard. The NVMe SSD can write 60 TBW, that is not much in comparison with rivals. After evaluating all the facts, our editor strongly advise to purchase Fanxiang S660 2TB for your PC.
+ Pros
- Good writing speed
- PCIe 4.0
- Capacity
- Cons
- Writing speed
Buy this or similar SSD Storage:
Video Review
Cheapest PCI-E 4.0 SSD on AliExpress: Fanxiang S660 Solid State Drive Review (2TB)
