# Addlink S90 1TB Review — Phison E16 PCIe 4.0 NVMe SSD (2026)

The Addlink S90 1 TB is an early PCIe 4.0 drive built on the Phison E16 platform with DDR4 DRAM, and while its 5,000 MB/s reads are now mid-pack, the core silicon is the same as drives that cost more from bigger brands.

Quick answer: The Addlink S90 1 TB is a Phison E16 drive without the paperwork. It has the same controller, DRAM, and PCIe 4.0 throughput as better-documented competitors, but Addlink's decision not to publish endurance or IOPS figures limits its appeal to buyers who research before purchasing. Buy it if you find it at a clearance price and understand the E16 platform well enough to know what you are getting — a capable first-gen PCIe 4.0 drive with DRAM that needs a heatsink. Skip it if you want published endurance numbers, detailed spec sheets, or the reassurance of a fully documented product — the Addlink S95 or the Corsair MP600 are E16 alternatives with transparent specifications. The S90 is fine silicon in a foggy box, and whether that is acceptable depends entirely on your tolerance for ambiguity.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 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 | 700 TBW |
| MTBF | 1.8 |
| Warranty | 5 years |

## Performance

The S90 is rated at up to 5,000 MB/s sequential reads and 4,400 MB/s sequential writes — standard figures for the Phison E16 platform across all implementations. Random IOPS are not published by Addlink, but the E16 platform typically delivers 700,000—750,000 IOPS for both reads and writes when paired with TLC NAND. In practice, game load times, OS boot speeds, and application launches are indistinguishable from any PCIe 4.0 NVMe drive — the E16's 5,000 MB/s ceiling is more than adequate for consumer workloads.

Like all E16 drives, the S90 uses a large SLC write cache — likely 150—200 GB on the 1 TB model based on platform behaviour — and direct-to-TLC writes settle in the 1,200—1,500 MB/s range after the cache fills. The E16 controller runs hot: sustained sequential writes will push the controller past 75 °C without a heatsink, triggering thermal throttling. A motherboard M.2 heatsink with case airflow is strongly recommended. The drive is not suited for laptops or fanless enclosures — the thermals are a desktop-only proposition.

## Endurance, TBW & Warranty

Addlink does not publish a TBW endurance rating for the S90 — the official specification sheet omits this figure entirely. The drive carries a 5-year warranty, backed by an 1.8 million hour MTBF. The absence of a published TBW figure is unusual for a PCIe 4.0 drive and makes it difficult to assess how the warranty interacts with write endurance. For context, other Phison E16 drives in the same class were rated at 1,800 TBW for the 1 TB capacity (ADATA XPG Gammix S50) or 700—800 TBW depending on NAND tier. Addlink handles warranty claims through its distribution network. Buyers concerned about endurance should consider the S95 or a brand-name alternative with published TBW figures.

## Pros and Cons

**Pros:**

- 5,000 MB/s reads on the proven Phison E16 PCIe 4.0 controller
- DDR4 DRAM cache for consistent mixed-workload latency
- 8-channel controller handles sustained workloads well
- 5-year warranty
- Same core platform as the Corsair MP600 and Sabrent Rocket 4.0
**Cons:**

- No published TBW endurance rating — unusual for an NVMe SSD
- No published random IOPS figures
- Phison E16 runs hot and requires a heatsink
- Limited documentation compared to brand-name E16 competitors
- Poor fit for laptops due to thermals and power draw


## Verdict

The Addlink S90 1 TB is a Phison E16 drive without the paperwork. It has the same controller, DRAM, and PCIe 4.0 throughput as better-documented competitors, but Addlink's decision not to publish endurance or IOPS figures limits its appeal to buyers who research before purchasing. Buy it if you find it at a clearance price and understand the E16 platform well enough to know what you are getting — a capable first-gen PCIe 4.0 drive with DRAM that needs a heatsink. Skip it if you want published endurance numbers, detailed spec sheets, or the reassurance of a fully documented product — the Addlink S95 or the Corsair MP600 are E16 alternatives with transparent specifications. The S90 is fine silicon in a foggy box, and whether that is acceptable depends entirely on your tolerance for ambiguity.

## Frequently Asked Questions

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

Yes. The Phison PS5016-E16 is an 8-channel controller with a dedicated DDR4 DRAM buffer for the flash translation layer. This provides better sustained mixed-workload performance than DRAM-less HMB designs, particularly under high queue depths and long-duration transfers. For content creation, database workloads, or virtual machines running directly from the drive, the DRAM cache is a tangible benefit. The DDR4 DRAM in the S90 is the same configuration found in higher-priced E16 drives like the Corsair MP600 and Sabrent Rocket 4.0.

### What is the TBW endurance of the 1 TB Addlink S90?

Addlink does not publish a TBW endurance figure for the S90. This is unusual — most SSD manufacturers list TBW as a core specification alongside speed and warranty. The drive carries a 5-year warranty with an 1.8 million hour MTBF, but without a published TBW figure it is unclear whether the warranty is TBW-limited or purely time-based. For comparison, other Phison E16 1 TB TLC drives were rated at 700—1,800 TBW depending on the NAND grade and firmware tuning. If published endurance matters to you, consider the Addlink S95 or a brand-name alternative.

### Does the Addlink S90 need a heatsink?

Yes. The Phison E16 was the first consumer PCIe 4.0 controller and it runs hot — sustained sequential writes will push the controller past 75 °C within minutes without a heatsink. A motherboard M.2 heatsink with case airflow is the minimum requirement. The drive does not ship with a heatsink. This is a desktop-only drive — the thermal demands and power draw make it unsuitable for laptops or fanless enclosures.

### Is the Addlink S90 good for gaming?

Yes, the S90 1 TB is capable for a gaming desktop. The 5,000 MB/s reads and DDR4 DRAM cache are more than sufficient — game load times will be bottlenecked by CPU decompression, not drive throughput. The 1 TB capacity holds a comfortable game library. The E16 controller's DRAM cache helps maintain consistent latency during background tasks like game updates. The only gaming-relevant drawback is thermal: the E16 needs a heatsink, which most gaming motherboards include. If the S90 is available at a competitive price, it is a viable gaming drive — just ensure your motherboard has M.2 cooling.

### 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, DDR4 DRAM), while the S95 uses the second-gen Phison E18 (7,100/6,800 MB/s, DDR4 DRAM). The S95 is significantly faster, has published TBW and IOPS figures, and is a more modern, better-documented product. The S90 is the budget predecessor — same DRAM-equipped philosophy, earlier silicon. Unless the S90 is substantially cheaper, the S95 or a competing E18 drive is the better purchase.

### What controller does the Addlink S90 use?

The S90 uses the Phison PS5016-E16, an 8-channel PCIe 4.0 controller that debuted in 2019 as the first consumer Gen 4 SSD controller. It was the standard-bearer for early PCIe 4.0 drives and appeared in the Corsair MP600, Sabrent Rocket 4.0, Gigabyte Aorus NVMe Gen4, and ADATA XPG Gammix S50 — all essentially the same reference design with different branding. The E16 is a proven, mature controller with good sustained performance and a DDR4 DRAM interface, though it runs hotter and is slower than the second-gen E18 that replaced it.

### Can I use the Addlink S90 in a PS5?

Technically yes — it is a PCIe 4.0 x4 M.2 2280 NVMe drive — but its rated 5,000 MB/s sequential read speed is below Sony's 5,500 MB/s recommended minimum. The PS5 may accept the drive but flag it as below the optimal performance tier. Additionally, the E16 controller requires a heatsink, and the PS5 expansion bay has an 11.25 mm z-height limit. If the S90 is your only option, it will function, but a faster drive like the Addlink S95 or WD Black SN850 is a better PS5 investment.

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Last updated: 2026-05-23. Source: https://ssdrive.net/addlink-s90-1-tb