Verdict

For a NAS cache or write-heavy pool, the CT2000T705SSD3 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).

CT2000T705SSD3
Crucial T705 · 2TB · Desktop
$390 ($194.98/TB)
MZ-77Q2T0
Samsung 870 QVO · 2TB · Desktop
$493 ($246.63/TB)

Value at a glance

Price / TB
CT2000T705SSD3 $194.98
MZ-77Q2T0 $246.63
Endurance (TBW)
CT2000T705SSD3 1,200 TB
MZ-77Q2T0 720 TB

Price history

US · cheapest per day

CT2000T705SSD3 $390 MZ-77Q2T0 $493
zoomed · drag to zoom
$525 $348 $171 Sep 2024 Feb 2025 Jul 2025 Nov 2025 Apr 2026 Sep 2026
CT2000T705SSD3 MZ-77Q2T0
Capacity 2 TB 2 TB
Form factor M.2 2.5
Interface NVMe SATA
NAND type TLC QLC
Endurance (TBW) 1,200 TB 720 TB
DWPD - -
DRAM cache Yes Yes
Power-loss protection No No
Sustained write - 160 MB/s
Cost / TBW $0.325 $0.685
Price / TB $194.98 $246.63
Buy
$390
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$493
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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.

CT2000T705SSD3

No Backblaze failure data for this model.

MZ-77Q2T0

No Backblaze failure data for this model.