Side-by-side spec and price comparison. Live data from Amazon US.
Seagate BarraCuda 4TB ST4000DMZ04 offers the best value at $48.75/TB. Available new with manufacturer warranty.
Seagate BarraCuda offers better value at $48.75/TB vs $49.98/TB - a 2% 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.
Both drives carry similar warranty terms and are built for enterprise operation. Check brand-specific AFR data and Backblaze drive stats for real-world failure rate comparisons.
Seagate BarraCuda is the better fit for NAS storage. SATA interface is compatible with all NAS platforms including Synology, QNAP and TrueNAS.