
WD Gold 18TB WD181KRYZ SATA 6Gb/s 7200RPM 3.5in HDD (Used, Tested)
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WD Gold is Western Digital’s enterprise class SATA hard drive line. It is aimed at small and medium business servers, storage arrays and NAS units that run continuously. It sits alongside the Ultrastar datacenter line but is sold through regular retail channels, which makes it easy to recognise by its gold label and by model numbers ending in KRYZ, such as the WD121KRYZ and WD181KRYZ. All WD Gold drives are 3.5 inch SATA drives at 7200 RPM, so they work on motherboard SATA ports, NAS bays and SAS controllers alike. They suit homelab servers, ZFS pools and backup targets where a buyer wants an enterprise drive without hunting through OEM part numbers. For used drives, compare the power-on hours we list for each unit. Every used drive passes SMART health and an extended self-test before it ships.
2 in stock · Tested in-house · 30-day returns
They are separate product lines aimed at similar enterprise use. WD Gold is SATA only and sold at retail; Ultrastar covers SAS and SATA and is sold mainly to datacenters and system builders.
Yes. WD Gold drives are rated for continuous operation in multi-bay systems and work in Synology, QNAP, TrueNAS and Unraid builds.
Used items carry a 90-day warranty, and certified drive tiers carry up to 2 years; the exact term is on each listing. New sealed items keep the manufacturer warranty.