Western Digital WD RE SAS 4TB enterprise hard drive, model WD4001FYYG / WD4001FYYG-01SL3, 3.5 inch format, 7200 RPM, SAS interface. SMART verified OK.
Enterprise hard disk for servers and storage systems compatible with 3.5″ SAS drives.
Important: The drive label/sticker may vary slightly between available units, but the model and part number are the same. All drives are Western Digital WD4001FYYG / WD4001FYYG-01SL3.
IMPORTANT: Sold WITHOUT any caddy, tray, sled, adapter or server bracket. This listing is for the Western Digital WD4001FYYG hard disk only. Any caddy/tray visible in photos is not included.
Compatibility: Servers, workstations and storage enclosures compatible with 4TB 3.5″ SAS hard drives. Suitable as replacement or expansion for Dell, HPE, IBM/Lenovo, Supermicro and other SAS systems — verify backplane and controller compatibility first.
Note: SAS drive, not SATA. Not compatible with standard desktop SATA ports without a SAS controller/backplane.
Always verify compatibility with your controller, backplane, firmware, and required caddy. Any necessary caddy must be purchased separately.










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