# Addlink S90 2TB Review — Phison E16 PCIe 4.0 NVMe SSD (2026)

The Addlink S90 2 TB is a budget 2 TB PCIe 4.0 drive with a Phison E16 controller and DDR4 DRAM — enough storage for a game library and enough throughput for any consumer workload, even if the spec sheet has more blanks than a brand-name competitor would tolerate.

Quick answer: The Addlink S90 2 TB is a capable Phison E16 drive let down by an incomplete spec sheet. The hardware — 8-channel E16 controller, DDR4 DRAM, TLC NAND, 5,000/4,400 MB/s speeds — is the same silicon found in drives that cost more and document more. But the absence of published TBW and IOPS figures makes it difficult to recommend over a competitor whose specifications are transparent. Buy the S90 2 TB if you find it at a steep discount, understand the E16 platform, and plan to use it as a secondary game or media drive where endurance is a theoretical concern. Skip it if you want a fully documented product with guaranteed endurance — the Addlink S95 2 TB, Corsair MP600 2 TB, or a modern DRAM-less TLC alternative like the WD Black SN770 2 TB are safer bets at similar prices.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 2 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5016-E16 |
| Memory type | 3D TLC |
| DRAM cache | DDR4 Cache |
| Sequential read | 5000 MB/s |
| Sequential write | 4400 MB/s |
| Random read IOPS | 750000 |
| Random write IOPS | 700000 |
| Endurance | 1400 TBW |
| MTBF | 1.8 |
| Warranty | 5 years |

## Performance

The S90 2 TB is rated at up to 5,000 MB/s sequential reads and 4,400 MB/s sequential writes — the same as the 1 TB. Random IOPS are not published, but the E16 platform with TLC typically delivers 700,000—750,000 IOPS for both reads and writes when all NAND channels are populated. The 2 TB capacity benefits from a larger SLC write cache than the 1 TB — likely 300—400 GB based on E16 platform behaviour — and the additional NAND parallelism helps sustain higher post-cache write speeds.

In practice, the S90 2 TB handles gaming and desktop workloads identically to any PCIe 4.0 NVMe drive — game loads are CPU-bottlenecked, OS boots complete in seconds, and the DRAM cache keeps latency low during background tasks. Sustained writes benefit from the larger cache and greater NAND parallelism: the 2 TB model will sustain full-speed writes across larger transfers before the SLC cache exhausts. The E16 controller runs hot regardless of capacity — a motherboard M.2 heatsink is mandatory for sustained writes. The 2 TB variant's double-sided PCB may also complicate heatsink mounting in tight M.2 slots.

## Endurance, TBW & Warranty

Addlink does not publish a TBW endurance rating for the S90 2 TB — the specification sheet omits endurance entirely. The drive carries a 5-year warranty with a 1.8 million hour MTBF. The absence of a TBW figure is uncommon for a PCIe 4.0 SSD and complicates the purchase decision for buyers concerned about write endurance. For reference, other 2 TB Phison E16 TLC drives were rated at 1,400—3,600 TBW depending on NAND grade and over-provisioning. Without Addlink's published number, there is no way to know where the S90 falls on that spectrum. Addlink handles warranty claims through its distribution network. Buyers prioritising documented endurance should consider the Addlink S95 or a brand-name E18 alternative.

## Pros and Cons

**Pros:**

- 5,000 MB/s reads on the proven Phison E16 PCIe 4.0 controller
- DDR4 DRAM cache for consistent latency under load
- 2 TB capacity at a budget price point
- 8-channel controller with mature, stable firmware
- 5-year warranty
- Larger SLC cache than the 1 TB variant for sustained bursts
**Cons:**

- No published TBW endurance rating
- No published random IOPS figures
- Phison E16 runs hot — heatsink required
- Double-sided PCB may not fit some thin M.2 slots
- Limited documentation compared to brand-name competitors


## Verdict

The Addlink S90 2 TB is a capable Phison E16 drive let down by an incomplete spec sheet. The hardware — 8-channel E16 controller, DDR4 DRAM, TLC NAND, 5,000/4,400 MB/s speeds — is the same silicon found in drives that cost more and document more. But the absence of published TBW and IOPS figures makes it difficult to recommend over a competitor whose specifications are transparent. Buy the S90 2 TB if you find it at a steep discount, understand the E16 platform, and plan to use it as a secondary game or media drive where endurance is a theoretical concern. Skip it if you want a fully documented product with guaranteed endurance — the Addlink S95 2 TB, Corsair MP600 2 TB, or a modern DRAM-less TLC alternative like the WD Black SN770 2 TB are safer bets at similar prices.

## Frequently Asked Questions

### Does the Addlink S90 2TB have a DRAM cache?

Yes. The Phison PS5016-E16 is an 8-channel controller with dedicated DDR4 DRAM for the FTL mapping table. This provides better sustained performance than DRAM-less HMB designs, particularly under mixed workloads, high queue depths, and long-duration transfers. For a 2 TB drive used as game storage or a media library, the DRAM cache ensures consistent read latency even when the drive is nearly full and the mapping table is large.

### What is the TBW endurance of the 2 TB Addlink S90?

Addlink does not publish a TBW endurance figure for the S90 series. The drive carries a 5-year warranty with an 1.8 million hour MTBF, but there is no published write endurance limit. This is unusual and makes it difficult to assess longevity for write-heavy workloads. For reference, other 2 TB Phison E16 TLC drives were rated between 1,400 and 3,600 TBW. If published endurance matters to your purchase decision, the Addlink S95 2 TB (1,400 TBW, published) or a brand-name alternative is a more transparent choice.

### Does the Addlink S90 2TB need a heatsink?

Yes — the Phison E16 runs hot and requires a heatsink for sustained writes. Without one, the controller will exceed 75 °C and thermal-throttle within minutes. Most desktop motherboards include an M.2 heatsink; if yours does not, budget for a third-party solution. The 2 TB variant's double-sided PCB means the NAND packages on the underside also benefit from thermal contact — some single-sided heatsinks may not cover these. The drive is a desktop-only proposition due to its thermals and power draw.

### Is the Addlink S90 2TB good for gaming?

Yes, as a game library drive the S90 2 TB is well-suited. Games are read-heavy: 5,000 MB/s reads are far beyond what any game engine demands, and the DDR4 DRAM cache ensures consistent load times. The 2 TB capacity holds a large library spanning dozens of AAA titles. The only caveat is thermal — ensure your motherboard has an M.2 heatsink, which most gaming boards include. If you find the S90 2 TB at a clearance price, it is a cost-effective game storage solution.

### How does the Addlink S90 compare to the S95?

The S90 and S95 are separated by a controller generation. The S90 uses the first-gen Phison E16 (5,000/4,400 MB/s) while the S95 uses the second-gen Phison E18 (7,100/6,800 MB/s). The S95 is roughly 40% faster, has published TBW (1,400 TBW at 2 TB) and IOPS figures, and is a more thoroughly documented product. Unless the S90 is dramatically cheaper, the S95 is the better purchase — it is faster, better documented, and still cost-competitive with other E18 drives.

### What controller does the Addlink S90 use?

The S90 uses the Phison PS5016-E16, the first consumer PCIe 4.0 SSD controller. It is an 8-channel design with DDR4 DRAM support that debuted in 2019 and powered the initial wave of Gen 4 drives including the Corsair MP600, Sabrent Rocket 4.0, and ADATA XPG Gammix S50. The E16 is a mature, well-tested controller with stable firmware and good sustained performance. Its main drawbacks are heat output (it runs hot) and speed ceiling (it tops out at 5,000/4,400 MB/s, well below second-gen controllers).

### Can I use the Addlink S90 2TB in a laptop?

No — this is not a laptop drive. The Phison E16 consumes more power and generates more heat than modern PCIe 4.0 controllers, and the 2 TB variant uses a double-sided PCB that exceeds the z-height clearance of most laptop M.2 slots. In a laptop's confined thermal environment, the E16 will thermal-throttle almost immediately under load. For a 2 TB laptop upgrade, look at a single-sided, low-power drive like the WD Black SN770 or Samsung 980 Pro.

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Last updated: 2026-05-23. Source: https://ssdrive.net/addlink-s90-2-tb