ADATA Legend 960 Max 4 TB: The Max-Capacity Gen4 Heatsink Drive (2026)

Name: ADATA Legend 960 Max 4 TB
Brand: ADATA
SKU: adata-legend-960-max-4-tb
Rating: 3.5 (50 reviews)

Posted on July 16, 2026 by Raymond Chen

The ADATA Legend 960 Max 4 TB is the top capacity of ADATA's heatsink-bundled SM2264 Gen4 line, carrying a family-high 3,120 TBW and the largest SLC cache of the siblings.

ADATA Legend 960 Max 4 TB: The Max-Capacity Gen4 Heatsink Drive

Controller & Memory

The ADATA Legend 960 Max 4 TB runs the same platform ADATA uses across the whole Legend 960 Max family: Silicon Motion's eight-channel SM2264 controller, Micron 176-layer TLC NAND, a discrete DDR4 DRAM buffer, and a bundled aluminium heatsink that is the defining 'Max' feature. Headline speeds are 7,400 MB/s sequential reads and 6,800 MB/s writes over the PCIe 4.0 x4 bus, with random performance rated up to 750,000 read IOPS and 630,000 write IOPS. Those numbers hold constant across the 1 TB, 2 TB, and 4 TB capacities; what changes between siblings is endurance, which scales with the amount of TLC NAND on board.

On the 4 TB, that endurance lands at 3,120 TBW, the family maximum and the figure johnnylucky.org records as the line's 3.1 PBW ceiling, holding roughly 780 TBW per terabyte of Micron 176-layer TLC against 1,560 TBW on the 2 TB and 780 TBW on the 1 TB. The 4 TB's full NAND complement also gives it the largest SLC cache of the three siblings, so under a long contiguous write such as a multi-hundred-gigabyte game-library move, a 4K video export, or a bulk backup, it holds the rated 6,800 MB/s burst longest before the cache fills and writes settle to the native TLC rate. That makes the 4 TB the capacity to buy when the workload is genuinely write-heavy or the library is genuinely huge, rather than the typical boot-plus-games use case. The bundled aluminium heatsink clears Sony's 11.25 millimetre height limit for the PlayStation 5 expansion bay, so the drive drops straight into a console as well as a Gen4 desktop.

Direct rivals at this capacity and tier include the Samsung 990 Pro 4 TB, which trades blows on real-world responsiveness while shipping bare, and the WD Black SN850X 4 TB, sold both bare and in a heatsink SKU that is the closest like-for-like match to the Max. The Seagate FireCuda 530 4 TB runs the same SM2264-plus-Micron recipe with similar headline numbers, and the Solidigm P44 Pro 4 TB rounds out the Gen4 enthusiast bracket. None of those ship a heatsink in the base box the way the Max does, which is the convenience case for paying the Max premium over the bare Legend 960 4 TB on the same platform.

Storage Comparisons:

Best 4 TB SSD Best PCIe 4.0 SSD Drive Best Deal of 1 TB SSDs NVME

Legend 960 Max Performance & Benchmarks

On the 4 TB Legend 960 Max, ADATA rates sequential reads at 7,400 MB/s and writes at 6,800 MB/s over a PCIe 4.0 x4 link, with random performance quoted up to 750,000 read IOPS and 630,000 write IOPS. Those figures match the 1 TB and 2 TB exactly, since ADATA publishes a single speed grade across the whole Legend 960 Max family; the 4 TB neither gives up nor gains anything on sequential throughput versus its siblings. The numbers sit just below the Samsung 990 Pro and WD Black SN850X ceiling of roughly 7,450 MB/s reads and match the Seagate FireCuda 530 on the same SM2264-plus-Micron platform.

Performance comparison

ADATA Legend 960 Max 4 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.

WESTERN DIGITAL SN8100 1 TB: 14,900 MB/s read, 14,000 MB/s write
Patriot Viper PV593 1 TB: 14,500 MB/s read, 14,000 MB/s write
Patriot Viper PV593 2 TB: 14,500 MB/s read, 14,000 MB/s write
Patriot Viper PV593 4 TB: 14,500 MB/s read, 14,000 MB/s write
ADATA Legend 960 Max 4 TB (this drive): 7,400 MB/s read, 6,800 MB/s write

Where the 4 TB pulls ahead of the smaller capacities in real use is sustained writes and headroom. The full TLC complement gives the 4 TB the largest SLC cache in the family, so a long contiguous transfer such as a 500 GB video export, a full game-library copy, or a bulk archive holds the rated 6,800 MB/s burst longest before the cache fills and writes settle to the native Micron TLC rate. Once that cache exhausts, the drive still writes faster than a SATA SSD or a QLC bulk drive, but the gap to the rated figure widens. For game load times, OS responsiveness, and DirectStorage-enabled titles, the 4 TB feels identical to any other upper-tier Gen4 drive; the bandwidth advantage only shows on large sequential workloads. The bundled aluminium heatsink keeps the SM2264 controller out of thermal throttle under sustained load, which is the practical reason to buy the Max over the bare Legend 960 at this capacity.

ADATA Legend 960 Max vs Competitors

See how the Legend 960 Max stacks up against other M.2 4.0 x 4 drives in our database:

Compare with rival drives:

Team Group Cardea A440 Pro 4 TB Nextorage NEM-PAC 4 TB Samsung 990 Pro 4 TB

Endurance, TBW & Warranty

ADATA covers the Legend 960 Max 4 TB with a five-year limited warranty, ending early only if the 3,120 TBW endurance rating is exceeded, whichever comes first. That 3,120 TBW figure is the family maximum, four times the 780 TBW of the 1 TB and double the 1,560 TBW of the 2 TB, holding about 780 TBW per terabyte of Micron 176-layer TLC. At a typical consumer workload of around 20 GB of writes per day, the drive would need more than four centuries to exhaust the NAND, so the flash outlasts the warranty term by a wide margin; a heavier 100 GB-per-day routine still clears eight decades. ADATA rates the drive at up to two million hours MTBF, a figure best read as a population-reliability statistic describing expected failures across a large fleet rather than a lifespan guarantee for any single unit. RMA is handled via the retailer or ADATA's regional service centres depending on the market.

ADATA Legend 960 Max 4 TB Specifications

Category	Value
Capacity [?]	4 TB
Interface [?]	M.2 4.0 x 4
Controller [?]	Silicon Motion SM2264 8 Channel
Memory type [?]	Micron 176-L TLC
DRAM [?]	Yes
Read speed (MB/s) [?]	7400
Write speed (MB/s) [?]	6800
Read IOPS [?]	750000
Write IOPS [?]	630000
Endurance (TBW) [?]	3120
MTBF (million hours) [?]	2000000
Warranty (years) [?]	5

Verdict: Is the Legend 960 Max Worth It in 2026?

Buy the ADATA Legend 960 Max 4 TB when the goal is a single drive that maxes a PlayStation 5 expansion bay or holds a large game library plus a video scratch disk on one Gen4 module, since the 4 TB carries the family's largest SLC cache, the family-high 3,120 TBW, and a factory-fitted heatsink that clears Sony's expansion-slot height limit. Skip it on a PCIe 3.0 board, where the drive runs at half its rated bandwidth and a cheaper Gen3 SSD matches the result, and pass on the 4 TB if the workload is purely everyday gaming, where the 2 TB Max hits the same speeds at a lower outlay. The closest alternative is the Samsung 990 Pro 4 TB on raw performance, or the WD Black SN850X 4 TB heatsink SKU for a like-for-like cooled comparison. The verdict on the ADATA Legend 960 Max 4 TB is a max-capacity, PS5-friendly Gen4 drive whose real edge is the bundled heatsink and bulk-storage headroom rather than chart-topping headline speed.

+ Pros

7,400 MB/s sequential reads over PCIe 4.0
3,120 TBW endurance, family maximum
Bundled aluminium heatsink fits PS5 slot
Largest SLC cache in the family
Silicon Motion SM2264 eight-channel controller
Micron 176-layer TLC with DDR4 DRAM
Five-year warranty, TBW-limited

- Cons

Heatsink adds height, may foul some ITX slots
Bundled heatsink rules out most laptop slots
4 TB carries a price premium per gigabyte
Real-world speed slightly trails Samsung 990 Pro
Only matches, not beats, the bare Legend 960

3.5 / 5 · 50 votes

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Video Review

LEGEND 960 MAX SSD heatsink installation tutorial

Frequently Asked Questions

Yes, and the 4 TB is the pick for an oversized game library. The ADATA Legend 960 Max 4 TB hits 7,400 MB/s sequential reads, fast for a PCIe 4.0 drive, but game load times are typically bounded by CPU and asset decompression rather than storage throughput, so it feels identical to a Samsung 990 Pro or WD Black SN850X in most titles. The bundled heatsink makes it a clean drop-in for a PlayStation 5 expansion slot or a Gen4 desktop where cooling is wanted out of the box. The real draw of the 4 TB is room: roughly 3.6 TB of usable space after formatting holds an enormous library without the install-and-delete shuffle. On a PCIe 3.0 board, a Gen3 drive is the better buy.

Yes, and the heatsink is the main reason this SKU exists. Sony requires an M.2 NVMe SSD recommending at least 5,500 MB/s sequential reads and fitting within 110 by 25 by 11.25 millimetres with a heatsink, and the ADATA Legend 960 Max 4 TB clears both bars with 7,400 MB/s reads and a factory-fitted aluminium radiator that fits the console's expansion bay. The console's slot is PCIe 4.0, so the drive runs at full speed rather than being capped like a Gen5 SSD would be. The 4 TB capacity gives roughly 3.6 TB of usable space after formatting, which is more than most PS5 owners will fill but is the practical ceiling the console's bay supports. For a console archiving a large library, this is the max-capacity pick.

The ADATA Legend 960 Max 4 TB carries a 3,120 TBW endurance rating, the family maximum, four times the 780 TBW of the 1 TB and double the 1,560 TBW of the 2 TB, holding about 780 TBW per terabyte of Micron 176-layer TLC. At a typical consumer workload of around 20 GB of writes per day, the drive would need more than four centuries to wear out the NAND, so the flash outlasts the five-year warranty by a wide margin. Even a heavier 100 GB-per-day routine clears eight decades. On a game or boot drive the TBW figure is almost never the limiting factor; it matters on the 4 TB only if the drive doubles as a video scratch disk or a bulk-write workload with sustained daily writes.

Sequential speeds are identical between the 2 TB and the ADATA Legend 960 Max 4 TB, both rated at 7,400 MB/s reads, 6,800 MB/s writes, and up to 750,000 random read IOPS, because ADATA publishes a single speed grade across the family. The differences are capacity, endurance, and SLC cache size. The 4 TB doubles endurance to 3,120 TBW versus 1,560 TBW on the 2 TB, and its full TLC package gives it the largest SLC cache in the line, holding the rated 6,800 MB/s burst write longest under a long contiguous transfer before dropping to the native Micron TLC rate. The 4 TB is the pick for a PS5 maxed on storage, a large game library, or a heavy video scratch disk; the 2 TB is the value sweet spot for everyday gaming and lighter creator work.

It already ships with one, which is the point of the Max SKU. The Silicon Motion SM2264 controller runs warm enough under sustained writes that a bare drive in a cramped slot can throttle, dropping sequential writes below the rated 6,800 MB/s, and ADATA's solution is to bundle an aluminium heatsink that clears the 11.25 millimetre height limit Sony sets for the PS5 expansion bay. In a desktop with a built-in motherboard M.2 heatsink, the bundled heatsink is harmless but not strictly necessary, and some builders remove it before installation to avoid a double-stack. Avoid running any Gen4 flagship bare and passive in a poorly ventilated slot, since thermal throttling not only cuts burst speeds but can shorten the controller's service life under heavy sustained loads.

The ADATA Legend 960 Max 4 TB uses Silicon Motion's SM2264 eight-channel PCIe 4.0 NVMe controller, paired with Micron 176-layer TLC NAND and a discrete DDR4 DRAM buffer. The SM2264 is the same controller ADATA uses across the plain Legend 960 and the whole Legend 960 Max family, and it is a high-end Gen4 design with eight flash channels and NVMe 1.4 support that has appeared in several ADATA drives. Independent reviews from Tom's Hardware, eTeknix, and Tech Critter all confirm the SM2264 sits inside the Max, so the part number is well documented; ADATA does not swap to a Phison E18 or any other controller on this SKU. The SM2264 platform delivers the drive's 7,400 MB/s reads, 6,800 MB/s writes, and 750,000 random read IOPS ratings.

Yes, and the 4 TB is the capacity in the line that best fits a heavy video or bulk-storage workflow. The combination of 7,400 MB/s sequential reads, a discrete DDR4 DRAM buffer, and PCIe 4.0 bandwidth handles large media transfers and keeps timeline scrubbing responsive in DaVinci Resolve or Premiere Pro. The key advantage over the smaller siblings is the largest SLC cache in the family: a long 4K or 8K capture fills the smaller drives' caches faster and writes then settle to the native Micron TLC rate, while the ADATA Legend 960 Max 4 TB holds the rated 6,800 MB/s burst longest before that drop-off. For a primary scratch disk handling multi-stream 4K footage, the 4 TB is the line's ceiling.