Western Digital HDD 3TB WD Red NAS RAID 3.5-inch internal HDD, a set of two WD30EFRX. I was using these in a NAS, but I've replaced them with larger capacity drives as they became full, so I'm selling these. Please see the photos for the usage time and power-on count. Please note that these are used items. As these are electronic devices, returns and refunds due to defects are not accepted. Only those who understand this, please.