WD Black SN750 2TB NVMe SSD Review (2026)
The WD Black SN750 2 TB pairs a massive 1,200 TBW endurance rating with PCIe 3.0 x4 bandwidth, making it a strong candidate for content creators who need high-capacity sustained write storage.
Controller & Memory
The 2 TB SN750 uses the same WD NVMe Architecture controller and SanDisk 64-layer 3D TLC as the rest of the lineup. The 2 TB model steps up to denser 512Gb dies (versus the 256Gb dies in smaller capacities), still in a single-sided M.2 2280 form factor with an SK Hynix DDR4 DRAM chip.
Rated at 3,400 MB/s reads and 2,900 MB/s writes, the 2 TB is slightly slower than the 1 TB model (3,470/3,000 MB/s) in both sequential metrics. This is unusual -- the 1 TB is the peak performer in the SN750 family, not the largest capacity. However, the 2 TB more than compensates with 1,200 TBW endurance, double the 1 TB's 600 TBW, which matters for write-heavy workflows.
The SN750's calling card is sustained write performance: independent reviewers found it maintains high throughput even after the SLC cache fills. Against direct competitors like the Samsung 970 EVO Plus 2 TB and Sabrent Rocket 2 TB, the SN750 trades read responsiveness for write consistency. The drive lacks hardware encryption and secure erase via Parted Magic.
Storage Comparisons:
Black ZN750 Performance & Benchmarks
WD rates the 2 TB SN750 for up to 3,400 MB/s sequential reads and 2,900 MB/s sequential writes over PCIe 3.0 x4, with 480,000 random read IOPS and 550,000 random write IOPS. These numbers are slightly below the 1 TB model's peak but remain competitive in the PCIe 3.0 class.
Western Digital Black ZN750 2 TB 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.
- 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
- Western Digital Black ZN750 2 TB (this drive): 3,400 MB/s read, 2,900 MB/s write
The SN750's tiered SLC write cache scales with capacity, giving the 2 TB model a larger cache than smaller variants. Sustained write performance after cache exhaustion is the SN750's strongest suit -- Tom's Hardware found it among the most consistent sustained writers in the PCIe 3.0 market. This matters for workloads like video editing, data migration, and large file transfers where other drives see sharp performance cliffs.
Gaming Mode in WD Dashboard disables low-power states for marginal latency improvements. Read performance in application benchmarks trails some competitors, which is the SN750's consistent weak spot across all capacities.
Western Digital Black ZN750 vs Competitors
See how the Black ZN750 stacks up against other M.2 3.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
WD rates the 2 TB SN750 for 1,200 TBW of write endurance under a five-year limited warranty. At 50 GB of writes per day -- a heavy consumer workload that includes game library management and media creation -- 1,200 TBW translates to roughly 65 years of use. The drive is overprovisioned by approximately 9% and includes tiered SLC caching, thermal throttling, NAND management, and LDPC error correction. WD does not support hardware encryption or secure erase via Parted Magic on the SN750.
Western Digital Black ZN750 2 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 3.0 x 4 |
| Controller [?] | SanDisk 20-82-007011 |
| Memory type [?] | SanDisk 64L TLC |
| DRAM [?] | SK Hynix 1GB DDR4 SDRAM |
| Read speed (MB/s) [?] | 3400 |
| Write speed (MB/s) [?] | 2900 |
| Read IOPS [?] | 480000 |
| Write IOPS [?] | 550000 |
| Endurance (TBW) [?] | 1200 |
| MTBF (million hours) [?] | 1.75 |
| Warranty (years) [?] | 5 |
Verdict: Is the Black ZN750 Worth It in 2026?
The WD Black SN750 2 TB is the endurance champion of WD's PCIe 3.0 lineup, with 1,200 TBW and best-in-class sustained write performance. Content creators and professionals who write large files regularly will benefit most from this combination. For pure gaming and everyday desktop responsiveness, the Samsung 970 EVO Plus or the newer PCIe 4.0 WD Black SN850 offer better read-heavy performance. The SN750 2 TB remains a reliable workhorse for write-intensive workflows on PCIe 3.0 platforms.
+ Pros
- 1,200 TBW endurance rating
- 3,400 MB/s reads, 2,900 MB/s writes
- Class-leading sustained write performance
- DDR4 DRAM cache
- Single-sided M.2 2280 at 2 TB
- 480K/550K random read/write IOPS
- Five-year warranty
- Cons
- Slightly slower than the 1TB model
- Read performance trails Samsung 970 EVO Plus
- No hardware encryption
- No secure erase via Parted Magic
- Superseded by SN850 on PCIe 4.0 platforms
Buy this or similar SSD Storage:
Video Review
SSD Battle Royale - Samsung 970 EVO Plus vs WD Black SN750 | Hardware
