asus ta-770 mid gaming tower case, 10x drive bays, fan, usb 2.0, audio, 1394, no psu, form factor atx/microatx. asus ta-770 gaming mid tower case, 10x drive bays: 4x 5.25", 6x 3.5", 2x usb 2.0, audio port, 1x ieee 1394, system fan support 1x 80mm front fan, 2x 80mm rear fans, aesthetics of technology, supports dual 80mm rear fans and a 80mm front fan to maximize airflow, 90° sideward hdd(internal) bracket enables easy installation without stretching, led lights give the chassis a different twist, form factor atx/microatx.(no psu).