Samsung 990 PRO 4TB
Art. no. NVM-SM-990P-4T
Flagship PCIe 4.0 drive at the largest capacity in the line — 7450 MB/s read, 2400 TB endurance, five-year warranty.
Trade price on request
Lexar NM620 512GB
Art. no. NVM-LX-NM620-512
On request
Lowest-cost TLC drive listed — 3300/2400 MB/s, 250 TBW, five-year warranty.
Specifications
General
| Brand | Lexar |
|---|---|
| Warranty | 60 months |
| Condition | New |
| Manufacturer part number | LNM620X512G-RNNNG |
Performance
| Capacity | 512 GB |
|---|---|
| Sequential read | 3300 MB/s |
| Sequential write | 2400 MB/s |
| Endurance (TBW) | 250 TB |
Interface & form factor
| Interface | PCIe 3.0 |
|---|---|
| PCIe lanes | x4 |
| NVMe revision | NVMe 1.4 |
| Form factor | M.2 2280 |
Hardware
| NAND type | 3D TLC |
|---|---|
| DRAM cache | No (HMB) |
| Heatsink | None |
Description
At 512 GB the NM620 is the entry point of this category and still holds the two things that matter at this price: TLC NAND and a five-year warranty. Write speed steps down from the 1 TB variant because fewer NAND dies can be written in parallel.
Key specifications
- Sequential 3300 MB/s read, 2400 MB/s write
- 250 TBW endurance, 5-year limited warranty
- 3D TLC NAND, DRAM-less (HMB), single-sided
Where it fits
Thin-client and point-of-sale machines, spare-part stock for laptop repairs, and OS drives in dual-drive builds.
Trade notes
Retail-boxed. Held as a repair-stock line — small quantities ship same day.
More in this category
Samsung 990 PRO 2TB
Art. no. NVM-SM-990P-2T
The volume seller of the 990 PRO line: identical 7450 MB/s ceiling at half the capacity, 1200 TBW.
Trade price on request
Samsung 990 PRO 1TB
Art. no. NVM-SM-990P-1T
Entry capacity of the current flagship line — full 7450 MB/s read, DRAM-backed, 600 TBW.
Trade price on request
Samsung 980 PRO 2TB
Art. no. NVM-SM-980P-2T
Previous-generation PCIe 4.0 flagship, still in supply — 7000 MB/s read, 1200 TBW, Elpis controller.
Trade price on request