MZ-77Q8T0 vs SB-RKT4P-8TB
SSD head-to-head - specs, value and live price side by side.
Verdict
For a NAS cache or write-heavy pool, the SB-RKT4P-8TB is the safer pick - the MZ-77Q8T0 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-77Q8T0
$182.50
SB-RKT4P-8TB
$400.00
Endurance (TBW)
MZ-77Q8T0
2,880 TB
SB-RKT4P-8TB
5,600 TB
Price history
UK · cheapest per day
MZ-77Q8T0 £551
SB-RKT4P-8TB £3,598
zoomed ·
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| MZ-77Q8T0 | SB-RKT4P-8TB | |
|---|---|---|
| Capacity | 8 TB | 8 TB |
| Form factor | 2.5 | M.2 |
| Interface | SATA | NVMe |
| NAND type | QLC | TLC |
| Endurance (TBW) | 2,880 TB | 5,600 TB |
| DWPD | - | - |
| DRAM cache | Yes | Yes |
| Power-loss protection | No | No |
| Sustained write | 160 MB/s | - |
| Cost / TBW | $0.507 | $0.571 |
| Price / TB | $182.50 | $400.00 |
| Buy | No UK price yet |
£3,598
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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-77Q8T0
No Backblaze failure data for this model.
SB-RKT4P-8TB
No Backblaze failure data for this model.