The MITXPC MX500-USB3 in an ultra-compact, fanless enclosure designed for Mini-ITX form factor motherboards. The MX500-USB3 features two USB 3.0 ports on its front panel (the original MX500 is equipped with USB 2.0 ports). The chassis is ventilated for silent, fanless system configurations and also supports 40mm case fans for applications that require additional cooling. The rear panel of the chassis is designed with 3 x antenna cutouts, 1 x DB9 cutout and 1 x DC-IN jack cutout (fit for a 5.5mm barrel connector). For motherboards without onboard power, pair one of the optional ATX power supply boards (80W and 120W models available) for a perfect-fit solution.