MZ-77Q2T0 vs SB-RKT5-2TB
SSD head-to-head - specs, value and live price side by side.
Verdict
For a NAS cache or write-heavy pool, the SB-RKT5-2TB is the safer pick - the MZ-77Q2T0 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-77Q2T0
$245.00
SB-RKT5-2TB
$175.00
Endurance (TBW)
MZ-77Q2T0
720 TB
SB-RKT5-2TB
1,400 TB
Price history
US · cheapest per day
MZ-77Q2T0 $490
SB-RKT5-2TB $350
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| MZ-77Q2T0 | SB-RKT5-2TB | |
|---|---|---|
| Capacity | 2 TB | 2 TB |
| Form factor | 2.5 | M.2 |
| Interface | SATA | NVMe |
| NAND type | QLC | TLC |
| Endurance (TBW) | 720 TB | 1,400 TB |
| DWPD | - | - |
| DRAM cache | Yes | Yes |
| Power-loss protection | No | No |
| Sustained write | 160 MB/s | - |
| Cost / TBW | $0.681 | $0.250 |
| Price / TB | $245.00 | $175.00 |
| Buy |
$490
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|
$350
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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-77Q2T0
No Backblaze failure data for this model.
SB-RKT5-2TB
No Backblaze failure data for this model.