The Dell PowerEdge R820 Server is configured to accept these 500GB SATA 6G 2.5 7.2K w/G176J Tray, Hot-Plug Drives.
These Drives are interchangeable in the Dell PowerEdge R820 Server and are compatible with one another.
They are Genuine Dell Drives with Dell Firmware and Serial Numbers designed specifically for your Dell PowerEdge R820.