RS520-E8-RS12-E V2 is equipped with 12 SAS/SATA 3.5-inch disk drive bays.The hot-swappable design provides non-stop high availability, making short workof maintenance. RS520-E8-RS12-E V2 also offers great freedom when it comes tothe choice of operating system drive type and placement, with M.2 slotavailable, and two hot-swappable 2.5-inch SSD bays.