Seagate IronWolf 4TB 3.5-Inch SATA NAS HDD ST4000VN006 CMR – 2 Years Warranty
- 4TB 3.5-Inch Internal Hard Drive Optimized for NAS Storage
- 5400 RPM with CMR Recording Technology & 64MB Cache
- SATA 6Gb/s Interface for Compatible NAS Systems
- Designed for Multi-User NAS Environments with Up to 8 Drive Bays
Western Digital WD Red 4TB 3.5-Inch SATA NAS HDD 5400 RPM 128MB Cache – 2 Years Warranty
- 4TB 3.5-Inch Internal HDD Designed for NAS Storage Environments
- 5400 RPM Performance with 128MB Cache & Transfer Rate Up to 175MB/s
- NASware™ Technology for Improved Compatibility, Performance & Reliability
- Designed for 24/7 Operation in Small to Medium NAS & RAID Storage Systems