Hot-Swap Bays: Front Side Drive Bay: 12 Hot-swap 3.5" drive bays*
Front Side Backplane: 12-port 12Gbps* passive backplane * SAS drive is only supported with additional RAID/HBA cards
Rear Side: 4 Hot-swap 2.5" drive bays
Rear Side Bakplane: 2-port 12Gbps* and 2-port PCIe3.0 backplane * SAS drive is only supported with additional RAID/HBA cards
Memory Standard: DDR4 4200+(OC)*/ 4133(OC)/ 4000(OC)/ 3866(OC)/ 3800(OC)/ 3733(OC)/ 3600(OC)/ 3200(OC)/ 2933(OC)/ 2800(OC)/ 2666/ 2400/ 2133
* The maximum memory frequency supported may vary by processor type.
* Please refer to Memory Support List on ASRock's website for more information.