The Athena Power AP-MTFX30 TFX form-factor case is an ideal solution for space-limited conditions. It is also compatible with many brand-name systems. The Manual TFX 300 Watt PSU includes a 24-pin (20+4), P4-12V 4-pin, SATA II 15-pin, Molex 4-pin, and FDD 4-pin output connectors. This PSU also includes an internal 40mm ball-bearing fan and thermal fan speed control for maximum heat and noise dissipation. With its thermal fan speed control it will detect the amount of heat generated by the computer and spin accordingly. Using this controller to detect the heat levels of the PSU, it will adjust the fan speed automatically. And with this feature built in, you won't have to worry about your PSU's heat anymore.