Designed to leverage every inch of its compact design, the A3-mATX supports Mini-ITX and Micro-ATX motherboards as well as ATX power supplies. Four expansion slots accommodate graphics cards up to 16.3" in length and there is 6.4" of clearance for CPU coolers. While the A3-mATX sports a breathable design, up to ten 120mm fans or a 360mm radiator may be installed to enhance airflow and balance thermal performance. Connect essential devices such as controllers and external drives to the two USB-A ports and one USB-C port. Separate 3.5mm audio output and microphone input jacks enable easy communication for conference calls or gaming.