Your shared folder drops at 4 pm on a Friday. The consumer drive you slotted in last year is clicking like it's about to go. You don't need another budget platter that quits after 18 months of 24×7 spin-up cycles. You need a drive built for the grind.
The WD Red Pro 4TB (WD4005FFBX) is Western Digital's enterprise NAS workhorse. 7200 RPM with CMR recording – no shingled-mag write penalties when you're restoring a 2 TB project file at 6 am. 256 MB cache on a SATA 6 Gb/s interface pushing up to 217 MB/s sustained. NASware firmware is tuned to your NAS workload so the drive and controller stop fighting each other.
Rated for 550 TB/year workloads with a 2.5 million-hour MTBF. Drop it into a 2-bay home server or a 16-bay RAID array – WD rates it for unlimited bays. RCM certified for Australian use. 5-year limited warranty covers you if it ever does throw a wobbly.
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| brand | Western Digital |
| model_number | WD4005FFBX |
| capacity | 4 TB |
| form_factor | 3.5-inch |
| interface | SATA 6 Gb/s |
| disk_speed | 7200 RPM |
| cache_size | 256 MB |
| recording_technology | CMR |
| transfer_rate | Up to 217 MB/s |
| workload_rating | 550 TB/year |
| mtbf | Up to 2.5 million hours |
| warranty | 5-Year Limited Warranty |
| dimensions | 147 mm × 101.6 mm × 26.1 mm |
| operating_temperature | 0 °C to 65 °C |
| non_operating_temperature | -40 °C to 70 °C |
| certifications | BSMI, ICES-003/NMB-003, CE, FCC, KC, Maghreb, RCM, UKCA, VCCI, CB-Scheme, TUV |
| compatibility | RAID-optimized NAS systems with unlimited bays |
