Verdict

For a NAS cache or write-heavy pool, the WDS100T1R0C 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
£249 (£249.00/TB)
WDS100T1R0C
WD Red SN700 · 1TB · NAS
£254 (£254.25/TB)

Value at a glance

Price / TB
MZ-77Q1T0 $316.23
WDS100T1R0C $281.97
Endurance (TBW)
MZ-77Q1T0 360 TB
WDS100T1R0C 2,000 TB

Price history

UK · cheapest per day

MZ-77Q1T0 £249 WDS100T1R0C £254
zoomed · drag to zoom
£300 £173 £47 Aug 2024 Jan 2025 Jun 2025 Nov 2025 Mar 2026 Aug 2026
MZ-77Q1T0 WDS100T1R0C
Capacity 1 TB 1 TB
Form factor 2.5 M.2
Interface SATA NVMe
NAND type QLC TLC
Endurance (TBW) 360 TB 2,000 TB
DWPD - -
DRAM cache Yes Yes
Power-loss protection No No
Sustained write 80 MB/s -
Cost / TBW $0.878 $0.141
Price / TB $316.23 $281.97
Buy
£249
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£254
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.

WDS100T1R0C

No Backblaze failure data for this model.