Side-by-side spec and price comparison. Live data from Amazon US.
WD WD_Black SN8100 4TB NVMe SSD wins on both price ($175.00/TB) and warranty (5 years).
WD WD_Black offers better value at $175.00/TB vs $186.25/TB - a 6% price difference. Factor in warranty length and workload rating when the price gap is small.
Mixing drives of different models in RAID is not recommended even if capacities match. Different firmware, error handling and seek patterns can cause rebuild issues. Use identical drives within the same RAID group for reliable operation.
WD WD_Black carries a longer 5-year warranty vs unknown years for Crucial T700. Both are enterprise-grade drives built for 24/7 operation.
Crucial T700 is the better fit for NAS storage.