Silicon Power XS70 2TB -- Phison E18 PCIe 4.0 Gaming NVMe Review
The Silicon Power XS70 2 TB takes the Phison E18 platform to full throughput with 7,300/6,800 MB/s and generous 1,400 TBW endurance at a price that undercuts most E18 competitors.
At 2 TB, the XS70 populates all eight E18 channels with 3D TLC NAND and 2 GB of DDR4 DRAM cache, delivering 7,300 MB/s reads and 6,800 MB/s writes — matching the Phison E18 ceiling. Endurance is 1,400 TBW, backed by a five-year warranty. The double-sided PCB at 2 TB may limit thin-laptop compatibility.
The XS70 is Silicon Power's gaming flagship, competing with the Kingston KC3000 2 TB and Corsair MP600 Pro XT 2 TB. At aggressive pricing, it represents solid value for gamers, content creators, and PS5 owners who want E18 performance without paying brand-name premiums.
✅ Storage Comparisons:
🚀 Performance and benchmarks
The 2 TB XS70 delivers 7,300/6,800 MB/s sequential reads and writes with DRAM-equipped random I/O. The E18 pseudo-SLC cache absorbs roughly 200-300 GB of burst writes at full speed. Gaming load times are indistinguishable from any PCIe 4.0 flagship.
Silicon Power XS70 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.
- 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
- Asgard AN4 1 TB: 7,500 MB/s read, 5,500 MB/s write
- Silicon Power XS70 2 TB (this drive): 7,300 MB/s read, 6,800 MB/s write
🖥️ Endurance and warranty
Silicon Power covers the XS70 2 TB with a five-year warranty limited by 1,400 TBW, equivalent to roughly 768 GB/day over five years. The 1 TB model carries 700 TBW.
📊 Specs
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Phison PS5018-E18 |
| Memory type [?] | Micron 3D TLC |
| DRAM [?] | Samsung DDR4 |
| Read speed (MB/s) [?] | 7300 |
| Write speed (MB/s) [?] | 6800 |
| Read IOPS [?] | n/a |
| Write IOPS [?] | n/a |
| Endurance (TBW) [?] | 1400 |
| MTBF (million hours) [?] | n/a |
| Warranty (years) [?] | 5 |
Conclusion
The 2 TB XS70 is one of the cheapest Phison E18 2 TB drives on the market. Its 7,300/6,800 MB/s speeds match the E18 ceiling, and the 1,400 TBW endurance is generous. For buyers who want maximum Gen4 performance without Samsung or Corsair pricing, the XS70 is a compelling option. Compare pricing against the Kingston KC3000 2 TB and ADATA XPG Gammix S70 Blade 2 TB.
+ Pros
- 7,300/6,800 MB/s -- full Phison E18 throughput
- Phison E18 with DDR4 DRAM cache
- 1,400 TBW endurance with 5-year warranty
- Aggressive E18 pricing
- PS5-compatible with heatsink
- Cons
- Double-sided PCB -- limited thin-laptop fit
- No factory heatsink option
- Silicon Power brand less recognized globally
🛒 Buy this or similar SSD Storage:
✨ Video Review
Silicon Power XS70 SSD Review, PC Benchmarks & PS5 Testing
