Athena Power RM-1U1043HE12 12Gb/s 1U Hot-Swap 4-Bay E-ATX Rackmount Server Chassis w/ 12Gbps Mini-SAS Backplane Supports 4 x 3.5' or 2.5' SAS /.

12Gb/s Mini-SAS HD (SFF-8643) Backplane 4 x 3.5’ or 2.5’ SAS (III-I) / SATA (III-I) Interface SSD / HDD Hot-Swap External Drive Bays Support M/B Size up to E-ATX (12’ x 13’) Support a 1U Redundant, 1U Single or FlexATX Power Supply 1 x External Slim ODD Bay; 2 x Internal 2.5’ HDD Bay 6 x 40mm Central Fans 1 x Front USB 2.0; LED: Power On / HDD Activity / LAN1 / LAN2 / Warning