Interface: SNV3S/4000G lists PCIe 4.0 x4 / NVMe; MZ-V9S4T0 lists PCIe 4.0 x4 or PCIe 5.0 x2 / NVMe 2.0.
Endurance (TBW): SNV3S/4000G lists 1280; MZ-V9S4T0 lists 2400.
Sequential read (up to MB/s): SNV3S/4000G lists 6000; MZ-V9S4T0 lists 7250.
Manufacturer limited warranty: SNV3S/4000G lists 5 years or Percentage Used reaches 100%, whichever comes first; MZ-V9S4T0 lists 5 years or TBW limit, whichever comes first.
Sequential write (up to MB/s): SNV3S/4000G lists 5000; MZ-V9S4T0 lists 6300.

A larger cache, higher RPM or higher advertised sequential speed alone does not establish which drive is better for your workload.

Specifications side by side

Show differences only

Manufacturer specifications for SNV3S/4000G and MZ-V9S4T0
Specification	SNV3S/4000G	MZ-V9S4T0
Manufacturer	Kingston	Samsung
Product family	NV3	990 EVO Plus
Model number	SNV3S/4000G	MZ-V9S4T0
Capacity (TB)	4	4
NAND	3D (cell type not specified)	Not recorded
Heatsink	Not included	Not recorded
Interface	PCIe 4.0 x4 / NVMe	PCIe 4.0 x4 or PCIe 5.0 x2 / NVMe 2.0
PCB sides	Single-sided	Not recorded
Form factor	M.2 2280	M.2 2280
Endurance (TBW)	1280	2400
Sequential read (up to MB/s)	6000	7250
Manufacturer limited warranty	5 years or Percentage Used reaches 100%, whichever comes first	5 years or TBW limit, whichever comes first
Sequential write (up to MB/s)	5000	6300

Compatibility and buying checks

Sequential speeds are manufacturer maxima, not measured game load times. Check your PCIe generation, M.2 dimensions and cooling clearance. The lower of the time or endurance limit normally governs a limited SSD warranty.
Compare new and renewed offers separately. The manufacturer specification does not guarantee the warranty or return policy of a marketplace seller.

Reviewed 2026-09-08. Published specifications; no independent benchmark or failure-rate claim.

Reviewed 2026-09-07. Published specifications; no independent benchmark or failure-rate claim.