# Silicon Power US70 2TB PCIe 4.0 NVMe SSD Review (2026)

The Silicon Power US70 2TB is the range-topping capacity of this Phison E16-based PCIe 4.0 NVMe line, offering 5,000 MB/s reads, 4,400 MB/s writes, and 3,600 TBW endurance for users who need bulk Gen4 storage.

Quick answer: The Silicon Power US70 2TB is a straightforward value play in PCIe 4.0 storage: same Phison E16 hardware as the competition, same 5,000/4,400 MB/s performance, same 3,600 TBW endurance, but typically at a lower price. It is the right drive for AMD X570 or B550 builders who want maximum capacity on a Gen4 M.2 slot without overspending on a brand premium. The limitation is shared with all Phison E16 drives — second-gen Gen4 controllers deliver 7,000+ MB/s, making the US70 a tier behind the current performance ceiling. Buyers who need cutting-edge speed should step up to a Phison E18 or WD Black SN850. For capacity-focused value, the US70 2TB is difficult to beat.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 2 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5016-E16 |
| Memory type | Toshiba 3D TLC |
| DRAM cache | SLC Caching DRAM Cache |
| Sequential read | 5000 MB/s |
| Sequential write | 4400 MB/s |
| Random read IOPS | 750000 |
| Random write IOPS | 750000 |
| Endurance | 3600 TBW |
| MTBF | 1.7 |
| Warranty | 5 years |

## Performance

The US70 2TB is rated for 5,000 MB/s sequential reads and 4,400 MB/s sequential writes, with 750K random read IOPS and 700K random write IOPS. The 2TB model's larger SLC cache absorbs more data before throttling — typically 200–300 GB of sustained writing before write speeds drop to native TLC rates around 1,500–2,000 MB/s.

With more NAND die available for parallel operations, the 2TB model sustains higher throughput under mixed read/write workloads compared to smaller capacities. Independent reviewers find real-world performance essentially identical to other Phison E16 drives at the same capacity. Gaming load times, application launches, and file transfers are all consistent with the Phison E16 platform's capabilities. The practical limitation for gaming is game engine design, not SSD throughput — the US70 2TB provides substantial headroom beyond what current games demand.

## Endurance, TBW & Warranty

Silicon Power rates the US70 2TB at 3,600 TBW with a five-year limited warranty. At 50 GB of writes per day, the endurance budget covers roughly 197 years. Even at an extreme 200 GB per day, the 3,600 TBW allowance lasts 49 years. The drive carries a 1.7 million hour MTBF rating. Silicon Power's SSD toolbox provides health monitoring and secure erase functions. Warranty claims are processed through the retailer or Silicon Power's RMA portal. The five-year coverage matches the industry standard for this tier.

## Pros and Cons

**Pros:**

- 5,000 MB/s reads and 4,400 MB/s writes on PCIe 4.0
- 3,600 TBW endurance — generous for the price
- 2TB capacity for large game libraries or video projects
- Toshiba 96-layer TLC with DDR4 DRAM cache
- Consistently priced below competing Phison E16 drives
**Cons:**

- First-gen Gen4 — surpassed by 7,000+ MB/s second-gen drives
- No included heatsink
- Double-sided PCB limits thin-laptop compatibility
- Generic branding and minimal bundled software
- Requires PCIe 4.0 platform for rated throughput


## Verdict

The Silicon Power US70 2TB is a straightforward value play in PCIe 4.0 storage: same Phison E16 hardware as the competition, same 5,000/4,400 MB/s performance, same 3,600 TBW endurance, but typically at a lower price. It is the right drive for AMD X570 or B550 builders who want maximum capacity on a Gen4 M.2 slot without overspending on a brand premium. The limitation is shared with all Phison E16 drives — second-gen Gen4 controllers deliver 7,000+ MB/s, making the US70 a tier behind the current performance ceiling. Buyers who need cutting-edge speed should step up to a Phison E18 or WD Black SN850. For capacity-focused value, the US70 2TB is difficult to beat.

## Frequently Asked Questions

### Is the Silicon Power US70 2TB good for video editing?

The US70 2TB handles video editing workloads well thanks to 4,400 MB/s sustained writes and 3,600 TBW endurance. Importing 4K footage from camera media is substantially faster than on PCIe 3.0 drives. The 2TB capacity provides ample room for project files, render caches, and scratch disks. The dynamic SLC cache absorbs burst writes from short exports at full speed, though very large renders exceeding the cache will slow to native TLC rates around 1,500–2,000 MB/s.

### Is the Silicon Power US70 2TB compatible with the PS5?

The US70 2TB uses the PCIe 4.0 NVMe interface and M.2 2280 form factor required by the PS5. However, its 5,000 MB/s read speed falls below Sony's recommended 5,500 MB/s minimum for PS5 expansion. The drive will physically fit and function, but Sony recommends faster drives for the best experience. If PS5 compatibility is the primary goal, consider a drive rated at 7,000 MB/s reads.

### What is the TBW endurance of the Silicon Power US70 2TB?

The US70 2TB is rated at 3,600 TBW (terabytes written), covered by a five-year limited warranty. At a heavy workload of 100 GB per day, the endurance budget lasts approximately 98 years. Even at 500 GB per day — an extreme scenario — it would take 19 years to exhaust the TBW allowance. For practical consumer and professional use, endurance is not a concern within the warranty period.

### Does the Silicon Power US70 2TB need a heatsink?

No heatsink is included. The Phison E16 controller generates moderate heat under sustained writes. Most modern motherboards provide an M.2 heatsink that is sufficient for typical use. For sustained write workloads like video rendering or large file transfers, a third-party M.2 heatsink helps prevent thermal throttling and maintains peak write performance.

### How does the Silicon Power US70 2TB compare to the Seagate FireCuda 520 2TB?

Both drives use the same Phison E16 controller and Toshiba 96-layer TLC NAND, delivering virtually identical performance. The FireCuda 520 has Seagate's brand recognition, SeaTools utility, and a custom firmware-tuned SLC cache. The US70 typically costs less while offering the same hardware foundation. Performance differences between them fall within margin of error in benchmarks. The choice comes down to price and whether the Seagate brand and software ecosystem matter.

### Is the Silicon Power US70 2TB double-sided?

Yes, the 2TB US70 is double-sided with NAND flash packages on both faces of the M.2 2280 PCB. The double-sided layout means the drive is thicker than single-sided designs and may not clear some ultrathin laptop M.2 slots. In standard desktop motherboards, clearance is rarely an issue. Check the laptop's M.2 slot height specification before purchasing.

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Last updated: 2026-05-17. Source: https://ssdrive.net/silicon-power-us70-2-tb