Tested and working, wiped of all information. No error messages, no bad sectors.

The HGST Ultrastar HUS724040ALS640 4TB 3.5" SAS HDD #1 is a high-capacity internal desktop drive designed for use with PCs. With a rotation speed of 7200 RPM and a storage capacity of 4TB, this HDD offers fast and reliable storage for your files and data. The drive is in a 3.5-inch form factor and is compatible with SAS interfaces. It is manufactured in Thailand and features a removable design as well as being RoHS compliant. This HDD is a reliable option for expanding storage capacity in your desktop system.