![WD Ultrastar DC HC550 18TB Hard Drive 3.5" Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) - Newegg.com WD Ultrastar DC HC550 18TB Hard Drive 3.5" Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) - Newegg.com](https://c1.neweggimages.com/productimage/nb640/A994S2102127RkcW.jpg)
WD Ultrastar DC HC550 18TB Hard Drive 3.5" Internal 512MB SATA 7200 RPM 512E SE NP3 DC HC550 0F38459 (WUH721818ALE6L4) - Newegg.com
![Amazon.com: Western Digital 18TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181PURP : Electronics Amazon.com: Western Digital 18TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181PURP : Electronics](https://m.media-amazon.com/images/I/71qNXFa9QKL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 18TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181PURP : Electronics
![Western Digital Extends Capacity-Enterprise HDD Technology Leadership into Broad Family of Data Center Solutions Enabling Unmatched TCO - TQPR Total Quality Public Relations Western Digital Extends Capacity-Enterprise HDD Technology Leadership into Broad Family of Data Center Solutions Enabling Unmatched TCO - TQPR Total Quality Public Relations](https://tqpr.com/wp-content/uploads/2020/07/Ultrastar-Family-V2B-scaled.jpg)
Western Digital Extends Capacity-Enterprise HDD Technology Leadership into Broad Family of Data Center Solutions Enabling Unmatched TCO - TQPR Total Quality Public Relations
![Amazon.com: Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX : Electronics Amazon.com: Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX : Electronics](https://m.media-amazon.com/images/I/71rYlLzn2lL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Western Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 256 MB Cache, 3.5" - WD181KFGX : Electronics
![Dell R20GG / Western Digital UltraStar DC HC550 0F38377 WUH721818AL5200 18TB 3.5" 12Gbps 7.2K RPM 512e SAS HDD Dell R20GG / Western Digital UltraStar DC HC550 0F38377 WUH721818AL5200 18TB 3.5" 12Gbps 7.2K RPM 512e SAS HDD](https://www.disctech.com/SCASite/product_images/0F38377-DEL_1000-1.jpg?resizeid=9&resizeh=650&resizew=650)