Transcend PCIe SSD 220S 512 GB Review — PCIe 3.0 NVMe (2026)

Posted on May 23, 2026 by Raymond Chen

The Transcend PCIe SSD 220S 512 GB is a DRAM-equipped PCIe 3.0 NVMe drive that punches near the top of the Gen 3 envelope and ships with a generous 5-year limited warranty.

Transcend PCIe SSD 220S 512 GB Review — PCIe 3.0 NVMe

Controller & Memory

The Transcend PCIe SSD 220S 512 GB — sold under the part number TS512GMTE220S — is a mid-cycle PCIe 3.0 NVMe drive built around the Silicon Motion SM2262EN, an eight-channel controller paired with a 512 MB Samsung DDR3 DRAM cache and Micron 64-layer 3D TLC NAND. The PCB is M.2 2280 and is double-sided, with NAND packages on both faces to fit four chips at 512 GB. Transcend markets the 220S at creators, gamers, and prosumers who want the practical ceiling of Gen 3 without paying for a Gen 4 drive they cannot saturate on an older platform.

This 512 GB capacity sits in the middle of the family, which spans 256 GB, 512 GB, 1 TB and 2 TB. Rated sequential read on every capacity is up to 3,500 MB/s; rated sequential write is up to 3,200 MB/s on the headline 2 TB SKU but lower on the 512 GB, where independent reviewers consistently measure around 2,100 MB/s on the same firmware. The closer rivals on PCIe 3.0 at 512 GB are the WD Blue SN570 500 GB (DRAM-less HMB, lower sustained writes), the Crucial P2 500 GB (entry tier, lower endurance), and the Samsung 970 EVO Plus 500 GB (DRAM, TLC, higher mainstream ceiling). The 220S’s case against the SN570 is the dedicated DRAM cache; its weakness against the 970 EVO Plus is firmware maturity and broader benchmark coverage.

The 220S is a fit for older desktops and laptops with a PCIe 3.0 M.2 slot, and for users who want a known-quantity TLC drive with DRAM at 512 GB. It is not a PS5 candidate because the PS5 expansion slot requires PCIe 4.0 and a 5,500 MB/s sequential read floor, and it is not the best fit for a current-generation gaming desktop that could use a Gen 4 drive for the same money.

Storage Comparisons:

Top PCIe 3.0 SSD Drives Best Deal of 1 TB SSDs NVME Top 2 TB SSDs

PCIe SSD 220S Performance & Benchmarks

Transcend rates the PCIe SSD 220S 512 GB at up to 3,500 MB/s sequential reads, which is essentially the practical ceiling of the PCIe 3.0 x4 bus, and sequential writes at up to roughly 2,100 MB/s for this specific capacity. The datasheet quotes “up to 340,000 read IOPS and 370,000 write IOPS” for the family at the highest capacity; on the 512 GB version independent measurement lands closer to 210,000 read and 310,000 write IOPS at standard 4K-block queue depth. In everyday use that translates to near-instant Windows boots, fast game level loads on PCIe 3.0 platforms, and snappy mass-asset reads in creative apps.

Performance comparison

Transcend PCIe SSD 220S 512 GB vs M.2 3.0 x 4 peers

Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 3.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.

Transcend PCIe SSD 220S 512 GB (this drive): 3,500 MB/s read, 2,100 MB/s write
ADATA SX 8800 Pro 512 GB: 3,500 MB/s read, 2,700 MB/s write
ADATA SX 8800 Pro 1 TB: 3,500 MB/s read, 2,700 MB/s write
ADATA XPG Spectrix S40G RGB 256 GB: 3,500 MB/s read, 3,000 MB/s write
ADATA XPG Spectrix S40G RGB 512 GB: 3,500 MB/s read, 3,000 MB/s write

The SLC cache behaviour is the part to be aware of. Independent reviewers consistently find the 220S delivers initial bulk writes around 1.9 GB/s while the SLC cache is open, then drops to roughly 460 MB/s in direct-to-TLC mode once the cache is exhausted. For a 512 GB drive that cache exhausts after a couple of dozen gigabytes of continuous writes, so video editors dumping multi-hundred-gigabyte projects will see the slowdown, while gamers, OS users, and people writing small or medium files will not. Independent reviewers also flag that the controller requires good airflow to avoid thermal throttling above ~75 °C during long sustained writes; a basic M.2 heatsink solves it.

Transcend PCIe SSD 220S vs Competitors

See how the PCIe SSD 220S stacks up against other M.2 3.0 x 4 drives in our database:

Compare with rival drives:

ADATA SX 8800 Pro 512 GB Addlink X70 512 GB Gigabyte M30 512 GB

Endurance, TBW & Warranty

Transcend rates the PCIe SSD 220S 512 GB at 400 TBW (terabytes written) over a 5-year limited warranty, whichever limit is reached first. That is a healthy TLC endurance figure for the capacity — in line with the Samsung 970 EVO Plus 500 GB and well above DRAM-less budget rivals. Spread over the warranty window 400 TBW corresponds to roughly 220 GB of host writes per day for the full five years, far more than ordinary desktop or laptop use generates. At a more realistic 20–30 GB/day workload the rated endurance corresponds to roughly 35 to 55 years of nominal life before the counter is exhausted. Transcend publishes a family MTBF figure of 2 million hours, which is a statistical population metric rather than a guaranteed lifespan for any individual drive. Warranty service is handled directly via Transcend RMA with proof of purchase, and the company’s SSD Scope utility provides SMART monitoring on Windows.

Transcend PCIe SSD 220S 512 GB Specifications

Category	Value
Capacity [?]	512 GB
Interface [?]	M.2 3.0 x 4
Controller [?]	Silicon Motion SM2262EN
Memory type [?]	Micron 64-layer 3D TLC
DRAM [?]	Samsung 512MB DDR3
Read speed (MB/s) [?]	3500
Write speed (MB/s) [?]	2100
Read IOPS [?]	210000
Write IOPS [?]	310000
Endurance (TBW) [?]	400
MTBF (million hours) [?]	2
Warranty (years) [?]	5

Verdict: Is the PCIe SSD 220S Worth It in 2026?

The Transcend PCIe SSD 220S 512 GB is the right pick if you are upgrading an older PCIe 3.0 desktop or laptop and you want a TLC drive with a real DRAM cache and a long 5-year warranty at the 512 GB price tier. Skip it if your platform is already PCIe 4.0 and a Gen 4 drive is the same money, because the 220S cannot stretch beyond the Gen 3 ceiling and you give up future-proofing for no benefit. The cleanest alternative on PCIe 3.0 at this capacity is the Samsung 970 EVO Plus 500 GB, which has wider firmware support and broader benchmark coverage at a similar price; the WD Blue SN570 500 GB is the cheaper choice if you accept the DRAM-less HMB compromise. Overall the 220S 512 GB is a quiet, capable PCIe 3.0 drive that does what it says on the datasheet.

+ Pros

3,500 MB/s sequential reads on PCIe 3.0
400 TBW endurance with 5-year warranty
512 MB Samsung DDR3 DRAM cache
Micron 64-layer 3D TLC NAND
Bundled SSD Scope SMART monitoring tool

- Cons

PCIe 3.0 ceiling caps it on Gen 4 systems
Writes drop to ~460 MB/s after SLC cache
Double-sided PCB unsuitable for PS5 slot
Controller throttles above 75 \xc2\xb0C without airflow
No bundled heatsink in retail box

3.6 / 5 · 34 votes

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Video Review

Best Budget NVMe SSD? - Transcend MTE220S Review

Frequently Asked Questions

Yes, the Transcend PCIe SSD 220S 512 GB is a capable PCIe 3.0 gaming drive. Its 3,500 MB/s rated reads and high random IOPS translate into fast game launches and level loads on any platform that can feed it, and the dedicated 512 MB DDR3 DRAM cache keeps small-file reads consistent under mixed workloads. The 512 GB capacity is enough for an OS install plus a small rotating active library, but heavy modern AAA installs will fill it quickly, and a 1 TB or 2 TB 220S sibling is the more comfortable size. On a PCIe 4.0 platform the 220S still works but cannot extract any extra speed.

No, the Transcend PCIe SSD 220S 512 GB does not meet Sony\xe2\x80\x99s PS5 expansion-slot requirements. The PS5 specifies a PCIe 4.0 NVMe drive with at least 5,500 MB/s sequential reads, and the 220S is a PCIe 3.0 drive rated at 3,500 MB/s reads, comfortably below the threshold. The 512 GB SKU also uses a double-sided PCB that does not fit cleanly in the PS5 expansion bay envelope. If you need a PS5 expansion drive at 500 GB or above, look at the WD Black SN850, Samsung 990 Pro, or Sabrent Rocket 4 Plus 500 GB instead.

Yes, the Transcend PCIe SSD 220S includes a dedicated DDR3 DRAM cache used by the Silicon Motion SM2262EN controller as a flash-translation-layer map. On the 512 GB model that is a 512 MB Samsung DDR3 chip soldered next to the controller. The DRAM does not store user data; it holds the address tables the controller consults on every small random read or write, which keeps latency low and random IOPS high under mixed workloads. That is the main architectural difference between the 220S and DRAM-less HMB drives like the WD Blue SN570 or the Crucial P2 at the same price point.

The Transcend PCIe SSD 220S 512 GB is rated for 400 TBW (terabytes written) over a 5-year limited warranty, whichever limit is reached first. At a typical desktop workload of 20 to 30 GB of host writes per day the rated endurance corresponds to roughly 35 to 55 years of nominal life before the counter is exhausted, so the TBW limit is not a practical concern for ordinary use. The endurance scales with capacity: 200 TBW at 256 GB, 800 TBW at 1 TB, and an unusually high 4,400 TBW headline figure on the 2 TB model. The 400 TBW figure is healthy for TLC at 512 GB.

A basic M.2 heatsink is recommended for sustained workloads. The Silicon Motion SM2262EN controller is high-performing for an eight-channel Gen 3 part but it runs warm, and independent reviewers consistently flag that the 220S can throttle above 75 \xc2\xb0C during long sustained writes if there is no airflow over the M.2 slot. Most modern motherboards ship with a stamped or finned M.2 cover that is adequate for everyday gaming and creator use. Transcend does not bundle a heatsink with the retail M.2 2280 SKU, but a basic third-party M.2 heatsink solves the throttling without trouble.

The Samsung 970 EVO Plus 500 GB is the closest PCIe 3.0 TLC rival at this capacity. On paper the two drives sit at the same sequential ceiling around 3,500 MB/s reads, with similar DRAM-backed controller architectures. The 970 EVO Plus has a longer track record on benchmark sites, faster sustained writes past the SLC cache, and slightly higher random performance. The Transcend 220S\xe2\x80\x99s case is a longer warranty in some regions and a comparable TBW figure at lower street price. If price parity holds, the 970 EVO Plus is the safer pick; if the 220S is meaningfully cheaper, it is a credible alternative.