Verdict

For a NAS cache or write-heavy pool, the MZ-V7S1T0 is the safer pick - the MZ-77Q1T0 uses QLC NAND, which wears out faster and slows badly under sustained writes (light, read-mostly use only).

MZ-77Q1T0
Samsung 870 QVO · 1TB · Desktop
$319 ($318.57/TB)
MZ-V7S1T0
Samsung 970 EVO Plus · 1TB · Desktop
$286 ($286.11/TB)

Value at a glance

Price / TB
MZ-77Q1T0 $278.13
MZ-V7S1T0 $286.11
Endurance (TBW)
MZ-77Q1T0 360 TB
MZ-V7S1T0 600 TB

Price history

US · cheapest per day

MZ-77Q1T0 $319 MZ-V7S1T0 $286
zoomed · drag to zoom
$347 $214 $80 Nov 2024 Mar 2025 Aug 2025 Jan 2026 Jun 2026 Nov 2026
MZ-77Q1T0 MZ-V7S1T0
Capacity 1 TB 1 TB
Form factor 2.5 M.2
Interface SATA NVMe
NAND type QLC TLC
Endurance (TBW) 360 TB 600 TB
DWPD - -
DRAM cache Yes Yes
Power-loss protection No No
Sustained write 80 MB/s -
Cost / TBW $0.773 $0.477
Price / TB $278.13 $286.11
Buy
$319
View at Amazon →
$286
View at Amazon →

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-77Q1T0

No Backblaze failure data for this model.

MZ-V7S1T0

No Backblaze failure data for this model.