Addlink S92 2TB Review — QLC PCIe 4.0 NVMe SSD

Posted on May 17, 2026 by Raymond Chen

The Addlink S92 2 TB is the QLC drive you buy when capacity is the only spec that matters — 2 TB of PCIe 4.0 storage with a DRAM cache for less than most TLC 1 TB drives, provided you can live with the endurance and write speed penalties that QLC brings.

Addlink S92 2TB Review — QLC PCIe 4.0 NVMe SSD

The 2 TB Addlink S92 is the mid-capacity option in Addlink's QLC lineup, built on the Phison PS5016-E16 controller with DDR3 DRAM and Micron 3D QLC NAND. The 2 TB capacity doubles the endurance to 400 TBW and provides a larger SLC write cache than the 1 TB variant — important because QLC's post-cache write speeds are low enough that a bigger cache is the only thing standing between the user and a hard-drive-tier write experience. The drive uses the M.2 2280 form factor with the PCIe 4.0 x4 interface.

Addlink also sells the S92 in 1 TB and 4 TB capacities, with endurance scaling linearly: 200 TBW at 1 TB and 800 TBW at 4 TB. The 2 TB reviewed here is the practical sweet spot — enough space for a substantial game library or media collection, with enough endurance that a typical read-heavy workload will never approach the limit within the warranty period. The S92 competes against other QLC drives like the Corsair MP400 2 TB, Sabrent Rocket Q 2 TB, and Intel 670p 2 TB — all of which share the same QLC-for-capacity trade-off.

Use the S92 2 TB as a game library, a media archive, or a bulk storage drive where reads far outnumber writes. The DRAM cache makes it responsive for launching games and browsing large file collections. Do not use it as a scratch disk for video editing or a write-heavy workstation drive — the QLC NAND will both slow down and wear out faster than a TLC alternative. At 2 TB, the S92 is large enough that most users will fill it once and then read from it for years, which is exactly the workload QLC was designed for.

✅ Storage Comparisons:

Best Deal of 1 TB SSDs NVME Best PCIe 5.0 SSD Best 4 TB SSD

🚀 Performance and benchmarks

Addlink rates the S92 2 TB at up to 4,900 MB/s sequential reads and 3,600 MB/s sequential writes — identical to the 1 TB variant. Random performance is rated at up to 350,000 read IOPS and 700,000 write IOPS. The 2 TB capacity benefits from a larger SLC write cache than the 1 TB — typically 120—200 GB when the drive is empty, roughly double the smaller capacity — which means larger game installs and file transfers complete at full speed before the QLC bottleneck appears.

Performance comparison

Addlink S92 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
Addlink S92 2 TB (this drive): 4,900 MB/s read, 3,600 MB/s write

Once the pSLC cache fills, direct-to-QLC write speeds settle to roughly 200—400 MB/s — comparable to a mechanical hard drive in sequential transfers. For a drive used primarily for game launches and media playback, this is an infrequent event: the initial fill is slow, but subsequent use is almost entirely reads. The Phison E16 controller runs warm, though the QLC NAND's lower sustained write throughput means it generates less heat than TLC E16 implementations. A heatsink is beneficial but not essential for read-heavy use. The drive is not suitable for a laptop without adequate M.2 cooling if sustained writes are expected.

🖥️ Endurance and warranty

The 2 TB Addlink S92 carries a 400 TBW endurance rating and a 5-year limited warranty. At a typical 20 GB/day write rate — reasonable for a secondary game library drive — this translates to roughly 55 years of service, well beyond the warranty period. At 50 GB/day, the endurance is exhausted in roughly 22 years, still longer than the 5-year warranty. The MTBF is rated at 1.8 million hours. For context, the Intel 670p 2 TB (QLC) is rated at 740 TBW and the Crucial P3 2 TB (QLC) at 440 TBW — the S92's 400 TBW is on the low side for a 2 TB QLC drive but still adequate for read-heavy consumer use. The 4 TB variant doubles endurance to 800 TBW. Addlink handles warranty through its distribution partners.

📊 Specs

Category	Value
Capacity [?]	2 TB
Interface [?]	M.2 4.0 x 4
Controller [?]	Phison PS5016-E16
Memory type [?]	Micron 3D QLC
DRAM [?]	DDR3
Read speed (MB/s) [?]	4900
Write speed (MB/s) [?]	3600
Read IOPS [?]	350000
Write IOPS [?]	700000
Endurance (TBW) [?]	400
MTBF (million hours) [?]	1.8
Warranty (years) [?]	5

Conclusion

The Addlink S92 2 TB is a purpose-built drive with a narrow but valid use case: bulk PCIe 4.0 storage at the lowest possible cost per gigabyte. It reads fast, has a DRAM cache, and fits 2 TB into a budget that would only buy 1 TB of TLC from a brand-name competitor. Buy it as a game library or media drive where you fill it once and read from it for years. Skip it as a boot drive, a scratch disk, or a write-heavy workstation drive — QLC endurance and post-cache write speeds are real limitations that a TLC alternative avoids entirely. For a general-purpose 2 TB TLC drive at a competitive price, the WD Blue SN580 or Addlink S93 are stronger all-rounders. The S92 is a specialist, and in the right role it delivers exactly what it promises.

+ Pros

4,900 MB/s reads on PCIe 4.0 — fast enough for game loads and media
2 TB capacity with DDR3 DRAM at a budget price point
400 TBW endurance — adequate for read-heavy secondary storage
5-year warranty despite QLC endurance limits
Larger SLC cache than the 1 TB variant for longer burst writes
One of the lowest-cost 2 TB DRAM-equipped NVMe drives

- Cons

Direct-to-QLC write speed drops to 200—400 MB/s after cache fills
400 TBW endurance — below most QLC competitors at 2 TB
DDR3 DRAM is slower than the DDR4 used in TLC E16 designs
Unsuitable for write-intensive workloads or boot-drive duty
SLC cache shrinks as the drive fills, accelerating the write cliff

🛒 Buy this or similar SSD Storage:

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✨ Video Review

Can an Amazon 1TB SSD compete with a Samsung EVO? Actually... yes | Hardware

⁉️ FAQ

The 2 TB capacity is rated for 400 TBW, backed by a 5-year limited warranty. At a typical 20 GB/day write rate — reasonable for a game library drive — this works out to roughly 55 years of service. For context, the Intel 670p 2 TB (QLC) is rated at 740 TBW and the Crucial P3 2 TB at 440 TBW, both higher than the S92. The 1 TB variant is rated at 200 TBW; the 4 TB scales to 800 TBW. The S92's endurance is adequate for its intended role as read-heavy secondary storage, but it is not suitable for write-intensive workloads.

Yes, as a dedicated game library drive it is well-suited. Games are predominantly read workloads — once installed, they load from the drive into RAM and GPU memory with minimal ongoing writes. The 4,900 MB/s reads and DDR3 DRAM cache keep load times competitive with TLC drives, and the 2 TB capacity holds a large library spanning dozens of titles. The QLC penalty appears during game installs: large Steam or Battle.net downloads may slow after the SLC cache fills (typically 120—200 GB on the 2 TB model). If you install games infrequently and play them often, the S92 is cost-effective. If you are constantly rotating your library with large downloads, a TLC alternative will feel faster.

Yes, but it uses DDR3 DRAM rather than the DDR4 found in most Phison E16 drives. The DRAM stores the FTL mapping table and helps maintain consistent read latency — a tangible benefit over DRAM-less QLC drives that rely on HMB. The DDR3 choice is a cost reduction; it has lower bandwidth than DDR4 but remains functional for the S92's primary role as read-heavy storage. For gaming and media playback, the DDR3 DRAM is sufficient. For mixed read/write workloads, the combination of QLC NAND and slower DRAM becomes a compound bottleneck.

The S92 uses QLC NAND, which stores 4 bits per cell and requires more complex, slower program operations than TLC. To deliver acceptable burst performance, the drive uses a pSLC cache — roughly 120—200 GB on the 2 TB model when empty. Writes hitting the cache run at 3,600 MB/s. Once the cache is exhausted, the controller writes directly to QLC at 200—400 MB/s — comparable to a mechanical hard drive. As the drive fills up, the available cache shrinks, and the write cliff arrives sooner. This is inherent to all QLC SSDs. The S92 is designed for write-once-read-many workloads where the cache covers the initial fill and subsequent use is almost entirely reads.

It is not recommended. An OS drive generates constant background writes — logs, temp files, swap, browser caches — that accumulate to 20—30 GB per day before user data. Over 5 years, that alone could consume 36—55 TBW, or 9—14% of the drive's endurance, leaving less headroom for applications and user files. Additionally, Windows background tasks and updates will periodically hit the QLC write cliff, causing brief but noticeable system slowdowns. A TLC drive with 600-plus TBW endurance costs only modestly more and is a much safer boot drive choice. Reserve the S92 for secondary storage where endurance and sustained writes are not daily concerns.

Both use the Phison E16 controller with QLC NAND and DRAM, and both target the budget high-capacity segment. The MP400 2 TB is rated at 3,400/3,000 MB/s and 400 TBW — significantly slower on reads than the S92's 4,900 MB/s, though the write speed figures are closer. The MP400 uses DDR4 DRAM versus the S92's DDR3, which may give it a slight edge in mixed-workload latency. The S92 is the faster reader on paper; the MP400 has the better-known brand and broader retail availability. In practice, both are QLC drives best suited as game libraries and media storage — pick whichever is less expensive.

The rated sequential speeds are identical — 4,900 MB/s read and 3,600 MB/s write for both capacities. The 2 TB variant benefits from a larger SLC write cache (roughly 120—200 GB vs the 1 TB's 60—100 GB) and slightly higher direct-to-QLC write speed due to greater NAND parallelism. It also doubles the endurance to 400 TBW. For bursty reads — game loads, media playback — the two capacities perform identically. The 2 TB wins on sustained writes and total headroom, making it the better choice if you anticipate filling the drive with large files in one session.