This is a mechanical HDD drive with a 12 TB storage capacity. It has a 7 200 rpm rotation speed.
From Senetic
WD Ultrastar DC HC520 12TB 3.5 HDD SAS 512E SE 7200RPM Helium 0F29532/HUH721212AL5204
IT-Supplier
Western Digital Ultrastar He12 internal hard drive 12 TB 7200 RPM 256 MB 3.5" SAS
This product is also available at 7 unverified stores.