Case Type 1U rack , Chipset Intel C236 , Built-in CPU model Xeon E3-1585LV5 , 1xPCI-Express 3.0 8x , 1xM.2 , 1x15pin D-sub , 2xUSB 2.0 , 4xUSB 3.0 , 1xCOM , 3xRJ45 , 1xCOM via Header , Memory type DDR4 , Frequency speed 2133/1866/1600 MHz , Memory features UDIMM/ECC , Memory slots 4 , PSU Output Power 400 Watts , MicroATX , 4x3.5" SATA Hot-swap , Cooling & Ventilation System 4x 40x28mm 4-pin PWM Cooling Fans