Case Type MiniDesktop , Built-in CPU model EPYC 3251 , 1xPCI-Express 3.0 16x , 1xM.2 , 1x15pin D-sub , 2xUSB 3.0 , 5xRJ45 , Memory type DDR4 , Frequency speed 2666 MHz , Memory features RDIMM/ECC , Memory slots 4 , 2x2.5" Internal , Cooling & Ventilation System 2x 40x28mm 4-PIN PWM Fans