# Smartbuy Impact E16 1TB SSD — In-Depth Review & Specs (2026)

The Smartbuy Impact E16 1TB is the higher-capacity sibling in Smartbuy's first-generation PCIe 4.0 lineup. Built on the Phison PS5016-E16 reference platform with Kioxia 96-layer TLC NAND and a DDR4 DRAM buffer, it delivers up to 5,000 MB/s sequential reads and 4,400 MB/s writes — the ceiling of what the pioneering E16 controller can achieve. With 1,650 TBW of rated endurance and a single-sided M.2 2280 form factor, it is a solid entry-level Gen4 drive for the Russian and CIS markets.

Quick answer: The Smartbuy Impact E16 1TB is a capable first-generation PCIe 4.0 SSD that still holds its own in 2026 for everyday computing, gaming, and light content creation. The Phison E16 platform is mature and well-tested, Kioxia NAND is top-tier, and the 1,650 TBW endurance rating means you will almost certainly retire the drive for capacity reasons long before it wears out. The main caveat is price — in 2026, a DRAM-less second-generation Gen4 drive like the WD Blue SN580 or Crucial P3 Plus can match or beat the Impact E16 in real-world performance while consuming less power and costing less. If you find the Impact E16 at a steep discount on the Russian market, it is a safe and dependable pick. If you are paying new-retail prices in any other region, there are better options available.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5016-E16 |
| Memory type | Kioxia 96L TLC |
| DRAM cache | DDR4 |
| Sequential read | 5000 MB/s |
| Sequential write | 4400 MB/s |
| Random read IOPS | 750000 |
| Random write IOPS | 750000 |
| Endurance | 1650 TBW |
| MTBF | 1.7 |
| Warranty | 3 years |

## Performance

Sequential throughput lands at 5,000 MB/s read and 4,400 MB/s write in synthetic benchmarks — exactly what the E16 reference design promises. Real-world large-file transfers in Windows settle around 4,700–4,800 MB/s read and 4,000–4,200 MB/s write on a PCIe 4.0-capable platform. Random performance at 750,000 IOPS read and write slots the Impact E16 squarely into mid-pack Gen4 territory: faster than any Gen3 drive, but 20–30% behind DRAM-equipped E18-class drives in heavy queue-depth workloads.

For gaming, the drive is effectively indistinguishable from the fastest Gen4 SSDs on the market. Game level loads are overwhelmingly read-bound, and the E16's 5,000 MB/s reads are far beyond what any current game engine can saturate. The 1TB capacity is roomy enough for Windows, a suite of productivity applications, and five to eight modern AAA titles. Power consumption peaks at roughly 6.5 W under full sequential load and settles under 1 W at idle. The graphene heat spreader keeps the controller in the 65–72°C range during sustained writes, safely below the ~85°C thermal throttle threshold.

## Endurance, TBW & Warranty

Smartbuy typically provides a 3-year limited warranty for SSD products sold through authorized Russian and CIS distributors. Warranty coverage may not extend to purchases made outside these regions. The 1,650 TBW endurance rating serves as the warranty's write limit — exceeding it voids coverage. Verify warranty terms with your seller before purchasing, especially if buying internationally.

## Pros and Cons

**Pros:**

- Full 5,000/4,400 MB/s across all eight NAND channels
- DDR4 DRAM buffer ensures consistent random I/O latency
- Strong 1,650 TBW endurance rating
- Kioxia 96L TLC from a premier NAND manufacturer
- Single-sided M.2 2280 fits nearly any laptop or desktop
**Cons:**

- 28nm E16 controller is less efficient than modern 12nm alternatives
- Capped at ~5,000 MB/s — half the speed of current Gen4 flagships
- Limited warranty coverage outside Russia and CIS markets
- No hardware encryption support
- Graphene heat spreader is marginal for sustained heavy writes


## Verdict

The Smartbuy Impact E16 1TB is a capable first-generation PCIe 4.0 SSD that still holds its own in 2026 for everyday computing, gaming, and light content creation. The Phison E16 platform is mature and well-tested, Kioxia NAND is top-tier, and the 1,650 TBW endurance rating means you will almost certainly retire the drive for capacity reasons long before it wears out. The main caveat is price — in 2026, a DRAM-less second-generation Gen4 drive like the WD Blue SN580 or Crucial P3 Plus can match or beat the Impact E16 in real-world performance while consuming less power and costing less. If you find the Impact E16 at a steep discount on the Russian market, it is a safe and dependable pick. If you are paying new-retail prices in any other region, there are better options available.

## Frequently Asked Questions

### Is the Smartbuy Impact E16 1TB good for a PS5?

It meets the PS5's 5,500 MB/s recommended sequential read speed closely enough for practical use, but Sony's official guidance recommends drives rated at 5,500 MB/s or above. The Impact E16 is rated at 5,000 MB/s. It will work and load games just fine, but a drive rated at 5,500+ MB/s (like any Phison E18-based model) is a safer official choice for console use.

### How much DRAM does the 1TB Impact E16 have?

The 1TB model includes 1 GB of DDR4 DRAM, which is used by the Phison E16 controller to cache the flash translation layer (FTL) mapping table. The 500GB model ships with 512 MB of DRAM. This DRAM helps maintain consistent random read/write latency, especially under sustained mixed workloads.

### Is this drive suitable for a laptop?

Yes. The Impact E16 is a single-sided M.2 2280 drive, meaning all components are on one side of the PCB, and it fits into nearly any laptop with an M.2 PCIe slot. The graphene heat spreader is thin enough for tight clearances. Power consumption peaks at about 6.5 W, which is manageable for most modern laptop power budgets.

### How does it compare to the Sabrent Rocket 4.0?

The Smartbuy Impact E16 and the original Sabrent Rocket 4.0 (non-Plus) are essentially identical hardware: both use the Phison E16 controller with Kioxia 96L TLC NAND and DDR4 DRAM. The Sabrent may carry a longer warranty (5 years with registration in some regions) and broader international availability, but the core performance is the same.

### Can I use this as an external SSD?

Yes, with a USB4 or Thunderbolt 3/4 enclosure that supports PCIe tunneling, you can get close to the drive's full internal speed. With a standard USB 3.2 Gen 2 (10 Gbps) enclosure, speeds will be limited to roughly 1,000 MB/s — still very fast for an external drive, but far below the drive's native capability.

---

Last updated: 2026-05-23. Source: https://ssdrive.net/smartbuy-impact-e16-1-tb