MZ-77Q4T0 vs MZ-V9S4T0BW
SSD head-to-head - specs, value and live price side by side.
Verdict
For a NAS cache or write-heavy pool, the MZ-V9S4T0BW is the safer pick - the MZ-77Q4T0 uses QLC NAND, which wears out faster and slows badly under sustained writes (light, read-mostly use only).
Value at a glance
Price / TB
MZ-77Q4T0
$219.36
MZ-V9S4T0BW
$144.75
Endurance (TBW)
MZ-77Q4T0
1,440 TB
MZ-V9S4T0BW
2,400 TB
Price history
FR · cheapest per day
MZ-77Q4T0 €1,470
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| MZ-77Q4T0 | MZ-V9S4T0BW | |
|---|---|---|
| Capacity | 4 TB | 4 TB |
| Form factor | 2.5 | M.2 |
| Interface | SATA | NVMe |
| NAND type | QLC | TLC |
| Endurance (TBW) | 1,440 TB | 2,400 TB |
| DWPD | - | - |
| DRAM cache | Yes | No |
| Power-loss protection | No | No |
| Sustained write | 160 MB/s | - |
| Cost / TBW | $0.609 | $0.241 |
| Price / TB | $219.36 | $144.75 |
| Buy | No FR price yet | No FR price yet |
Highlighted cells mark the stronger spec for a NAS build. Failure rates from Backblaze Drive Stats where available; $/TB uses the cheapest live price. Buy links are Amazon affiliate.
MZ-77Q4T0
No Backblaze failure data for this model.
MZ-V9S4T0BW
No Backblaze failure data for this model.