The Biwin M350 2TB SSD is a budget-tier PCIe 4.0 drive that promises entry-level NVMe speeds without the premium price tag. With sequential read speeds hitting 5200 MB/s and a 5-year warranty, it targets users upgrading from aging SATA drives or building budget gaming systems. But there’s a catch: QLC flash memory and the absence of DRAM cache mean sustained performance takes a hit when you push beyond the pSLC cache window.
Key Takeaways
- Biwin M350 2TB reaches 5200 MB/s read, 4800 MB/s write in real-world testing, below advertised 6000/5000 MB/s peaks.
- QLC NAND and Host Memory Buffer (no DRAM) keep costs low but limit sustained write performance under heavy workloads.
- M.2 2280 form factor with thermal graphene pad and single-sided design simplifies installation and cooling.
- Priced around $101 USD (0.05 USD/GB), making it competitive against older TLC alternatives like TeamGroup MP44 and Lexar NM790.
- 5-year warranty and PS5 compatibility add value for console and desktop users seeking affordable PCIe 4.0 storage.
Biwin M350 2TB SSD Specs and Real-World Performance
The Biwin M350 2TB uses a Silicon Motion SM2268XT controller paired with QLC NAND flash, which explains both its appeal and its limitations. The drive ships with 0.5 mm thermal graphene padding and relies on Host Memory Buffer (HMB) instead of onboard DRAM—a cost-cutting measure that works fine for burst operations but struggles during sustained writes. The M.2 2280 single-sided design is a genuine convenience win: no heatspreader to remove, no thermal concerns on tight PS5 setups, and straightforward installation even in laptops with minimal clearance.
In AS SSD benchmarks, the 2TB model delivered sequential read speeds of 5073.59 MB/s and sequential write speeds of 5060.21 MB/s, falling short of Biwin’s advertised 6000 MB/s read and 5000 MB/s write claims. Random 4K performance tells a different story: 4K-64 threaded reads hit 1562.56 MB/s and writes reached 2573.37 MB/s, which is respectable for a budget drive. The pSLC cache sits around 400 GB, meaning you get cache-speed writes until you exceed that threshold—then QLC’s weakness emerges. After the cache fills, write speed drops significantly, making this drive less ideal for sustained video rendering, large file transfers, or continuous database operations.
The 800 TBW (terabytes written) rating on the 2TB model is decent for a budget SSD, though Biwin has not published TBW figures for smaller capacities, leaving some uncertainty around the 500GB and 1TB variants.
How Biwin M350 Stacks Against Alternatives
The Biwin M350 occupies an awkward middle ground. Its sibling, the Biwin NV7200 2TB, offers similar performance and power efficiency with better pricing at main capacities, making it worth comparing if you find it in stock. Older drives like the TeamGroup MP44 and Lexar NM790 still deliver nearly identical sequential speeds despite using higher-quality TLC NAND, which means they maintain better sustained performance under load—though they command higher prices when available.
Against SATA SSDs, the M350 dominates: boot times shrink dramatically, gaming load screens vanish, and video editing scrubbing becomes snappier. If you’re stuck on a 2.5-inch SATA drive, this is a generational leap. But if you’re choosing between the M350 and a TLC-based PCIe 4.0 drive in the same price bracket, the TLC option will age better under heavy use. The M350’s real strength is for casual users, console gamers, and office-bound laptops where sustained writes rarely matter.
What You Get in the Box and Real-World Usability
Biwin bundles Acronis hard drive cloning software with the M350, which is genuinely useful if you’re migrating from an existing drive. The 5-year warranty provides peace of mind, though typical consumer SSDs rarely fail within that window anyway. The drive is compatible with PCIe 3.0 and 4.0 slots, so it works in older boards without issue—just won’t unlock Gen4 speeds on Gen3 systems.
Installation is straightforward: slide the M.2 into your slot, secure the screw, and you’re done. No thermal pads to fiddle with, no heatspreader to remove. This simplicity is especially valuable for laptop upgrades and PS5 installations, where space is tight and thermal management can be fussy. The graphene thermal pad keeps temperatures stable during normal operation, though this drive will never throttle under typical consumer workloads.
Should You Buy the Biwin M350 2TB SSD?
Buy it if you’re upgrading from SATA, building a budget gaming PC, or expanding PS5 storage. At roughly $101 for 2TB, the cost-per-gigabyte is hard to beat for PCIe 4.0. Skip it if you do professional video work, run databases, or transfer multi-terabyte datasets regularly—QLC’s sustained-write penalty will frustrate you within weeks. For everyday gaming, web browsing, and office work, the M350 delivers enough speed to feel snappy without the sticker shock of premium TLC drives. The real question isn’t whether it’s fast—it is. The question is whether you’ll hit the pSLC cache wall, and for most users, you won’t.
Does the Biwin M350 2TB SSD work with PlayStation 5?
Yes. The M.2 2280 form factor and single-sided design fit PS5 expansion slots without issues. The 5200 MB/s read speed exceeds Sony’s 5500 MB/s requirement, and the graphene pad keeps thermals in check even in the PS5’s tight storage bay.
What’s the difference between Biwin M350 and NV7200?
Both use similar controllers and deliver comparable sequential speeds, but the NV7200 offers better pricing at mainstream capacities and slightly more consistent sustained performance. If both are available at your retailer, compare the per-GB cost—the winner depends on current inventory and regional pricing.
Is the Biwin M350 2TB SSD worth buying over older TLC drives?
Not necessarily. Older TLC-based drives like the TeamGroup MP44 and Lexar NM790 cost more but maintain better performance under sustained workloads. For casual users and console gaming, the M350’s lower price makes it the smarter choice. For professionals, the TLC alternative is worth the premium.
The Biwin M350 2TB SSD is a genuinely useful drive for the budget-conscious, but it’s not a miracle worker. It trades sustained performance for low cost, and that trade-off makes sense only if you know your workload won’t hit the QLC ceiling. For SATA upgrades and casual gaming, it’s a no-brainer. For anything heavier, save the extra cash and grab a TLC drive instead.
Where to Buy
$279.99 at Amazon | $312.99 | $519.99
This article was written with AI assistance and editorially reviewed.
Source: Tom's Hardware
