You will get this exact item with these exact details:
This is bare drive only with no caddy.
Model: WD6001BKHG
Interface: 2.5" SAS
Form Factor: 2.5" (These are 2.5" and not 3.5", so please make sure of your servers form factor before making the purchase)
Rotation Speed: 10000rpm
MPN: WD6001BKHG-Generic FW
Storage Capacity: 600gb
Brand: Western Digital