SK Hynix HFS256GD9MND 256GB
Score: 99/100
Kingston NV3 1TB
Score: 92/100Rankings
SK Hynix's 256 GB NVMe M.2 SSD provides fast 3,000 MB/s reads in a tiny OEM-focused package, making it ideal for Dell laptops and ultra-compact PCs. However, variable write speeds, limited retail availability, and consumer-grade endurance keep it from competing with mainstream consumer NVMe drives.

The Kingston NV3 1TB M.2 2230 NVMe SSD delivers flagship-class PCIe 4.0 speeds in an ultra-compact package, ideal for handheld gaming consoles and small-form-factor PCs, though reliability concerns have been noted.
| Attribute | SK Hynix HFS256GD9MND 256GB | ![]() |
|---|---|---|
256 GB | 1,024 GBbest | |
3,000 MB/s | 6,000 MB/sbest | |
— | 4,000 MB/sbest | |
— | 320 TBWbest | |
— | 5 yearsbest | |
— | 2,000,000 hoursbest | |
| ↓ lower better | 9 g | 2.8 gbest |
| ↓ lower better | — | 0 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | SK Hynix HFS256GD9MND 256GB | ![]() |
|---|---|---|
Performance(2) | ||
Sequential Read Speed (MB/s) | 3000 MB/s | 6000 MB/s |
Interface | PCIe NVMe | PCIe 4.0 NVMe |
Storage(3) | ||
Capacity (GB) | 256 GB | 1024 GB |
Form Factor | M.2 2280 | M.2 2230 |
NAND Type | TLC | 3D NAND |
Design & Build(2) | ||
Weight (g) | 9 g | 2.8 g |
Thickness (mm) | 2.54 mm | 2.3 mm |

Reviewers note solid sequential reads and compact size but point out inconsistent write speeds and lack of retail packaging, positioning it as an OEM-centric solution.
Amazon.ca users give a 4.6-star average, appreciating the speed and fit for Dell systems despite limited detailed feedback.

Professional reviewers praise the NV3 as a high-performance, future-ready upgrade for handheld consoles and SFF PCs, noting its near-rated Gen 4 speeds and solid reliability, but caution that current handheld hardware caps achievable bandwidth and that the drive performs poorly in external enclosures.
Everyday users largely appreciate the speed boost, compact fit, and responsive support, though a minority report early failures, data loss, and disappointing external-drive performance.
“fast installation and excellent real-world speed”

“smooth gameplay and quick boot times”

“Kingston's RMA process is fast and efficient”

