Western Digital Ultrastar DC HC550 Enterprise Hard Drive 18TB (3.5" SATA 6Gbps, SAS 12Gbps, 7200RPM, 512MB Cache)

Western Digital Ultrastar DC HC550 Enterprise Hard Drive 18TB (3.5" SATA 6Gbps, SAS 12Gbps, 7200RPM, 512MB Cache) is priced at £480.00 — stable over the last 30 days.

Price last checked: 18 Apr 2026, 04:46

• The Ultrastar DC HC550 hard drive from Western Digital offers a very high storage capacity, reducing your operating costs and enabling more value in your data center
• The internal HDD has security and encryption features that protect data from unauthorized access and is available in SED versions with SATA and SAS
• With a very high capacity and reliability of an estimated MTBF of 2.5 million hours, the 18 TB internal hard drive is ideal for object storage applications
• HelioSeal technology forms the basis for Western Digital's high-capacity hard drives and is the sixth generation of HelioSeal products
• Contents Ultrastar DC HC550 Enterprise hard drive 18 TB (3.5”, SATA 6 Gbit/s, SAS 12 Gbit/s, 7200 rpm, 512 MB cache)