Fanxiang S800 1TB: budget PCIe 4.0 storage (2026)
The Fanxiang S800 1 TB is a budget DRAM-less PCIe 4.0 NVMe rated at up to 7,300 MB/s reads with YMTC 232-layer TLC, aimed at value builds and everyday upgrades.
Controller & Memory
Fanxiang is a Chinese budget brand that sells affordable SSDs, and the S800 is its mainstream PCIe 4.0 module. The 1 TB model pairs Maxio's MAP1602 controller with YMTC (Yangtze Memory) 232-layer 3D TLC NAND and no DRAM, using the Host Memory Buffer to hold the flash translation layer in system RAM. It is rated at 7,300 MB/s sequential reads and 6,800 MB/s writes over PCIe 4.0 x4, ambitious numbers for a budget drive.
The S800 ships in 1 TB, 2 TB, and 4 TB. The 1 TB is the entry point and the smallest capacity; all three share the same controller and NAND, with endurance scaling from 700 TBW here up to 2,800 TBW on the 4 TB. It is a standard single-sided M.2 2280 card, so it drops into laptops and desktops with a PCIe 4.0 slot without clearance concerns.
As a DRAM-less design, the S800 leans on its SLC cache to reach its rated write speed, and like most budget drives the sustained figures trail the peak rating. For booting, gaming, and everyday file work the drive is more than adequate, and the 1 TB capacity suits a boot drive or a moderate game library. It is a sensible budget choice where price matters more than flagship benchmarks, with a strong 700 TBW endurance figure for the money.
Storage Comparisons:
S800 Performance & Benchmarks
The S800 1 TB is rated at 7,300 MB/s sequential reads and 6,800 MB/s writes over PCIe 4.0, figures shared across the line. No reliable random-IOPS figure is published for the drive, and the manufacturer rates the same peak throughput across all capacities.
Fanxiang S800 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
- Fanxiang S800 1 TB (this drive): 7,300 MB/s read, 6,800 MB/s write
Real-world results trail the rating, as is typical for budget DRAM-less drives on the Maxio MAP1602 platform. Writes run at full speed inside the SLC cache until it fills, then settle to the native TLC rate, and a 1 TB drive's cache is smaller than the 2 TB's, so it holds sustained writes for less time. Reads, by contrast, stay close to the rating in everyday use.
For gaming and everyday use the difference is hard to notice. Game load times are bounded by the CPU and asset decompression once a drive clears about 3,000 MB/s, so the S800 feels as quick as a faster-rated drive in practice. Large sustained transfers and heavy write workloads are where the budget DRAM-less design shows; for a boot drive or a small game library that rarely matters. It runs cool enough under light use, though sustained writes benefit from a motherboard heatsink.
Fanxiang S800 vs Competitors
See how the S800 stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Fanxiang covers the S800 1 TB with a five-year limited warranty, a strong term for a budget drive. Endurance is rated at 700 TBW on this model, which at a typical 20 GB per day of writes equates to roughly 96 years, so the flash will outlast the warranty in normal use. The rating scales with capacity, from 700 TBW on the 1 TB through 1,400 TBW on the 2 TB up to 2,800 TBW on the 4 TB, figures johnnylucky corroborates for the line at 2.8 PBW. Fanxiang rates the drive at around 2 million hours MTBF, a population statistic describing expected failures across a fleet rather than a guarantee for any single unit. Returns are handled through the retailer or Fanxiang depending on region, and the drive ships without a heatsink, so motherboard M.2 cooling is recommended.
Fanxiang S800 1 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 1 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Maxio MAP1602 |
| Memory type [?] | YMTC 232-L TLC |
| DRAM [?] | No |
| Read speed (MB/s) [?] | 7300 |
| Write speed (MB/s) [?] | 6800 |
| Read IOPS [?] | n/a |
| Write IOPS [?] | n/a |
| Endurance (TBW) [?] | 700 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 5 |
Verdict: Is the S800 Worth It in 2026?
Buy the Fanxiang S800 1 TB for a budget build or an older machine that wants PCIe 4.0-class speed without paying for a DRAM cache or a famous brand, and where 1 TB is enough for a boot drive and a moderate library. Skip it when very large files are moved regularly, since the DRAM-less design settles to the native TLC rate once the SLC cache fills, or when brand familiarity and review coverage matter, where the Crucial P310 1 TB is the safer pick. The natural rivals are the Crucial P310 1 TB and Kingston NV2 1 TB, both budget Gen4 options. We rate the 1 TB S800 a reasonable value drive, best suited to light, everyday, and gaming use on a budget.
+ Pros
- Up to 7,300 MB/s rated reads on PCIe 4.0
- YMTC 232-layer TLC NAND
- 700 TBW endurance rating
- Five-year limited warranty term
- Single-sided M.2 2280, fits laptops
- Budget pricing for the class
- Cons
- DRAM-less; real-world writes trail the rating
- No published random-IOPS figure
- Budget brand, limited review coverage
- Sustained writes settle to the TLC rate
Buy this or similar SSD Storage:
Video Review
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