Here is a shot of the included 80mm front fan rated at 2000RPM @ 19dBA as well as the twin 60mm fans that are rated at 2500 RPM @ 19dBA, and the chassis intrusion switch just above the left hand 60mm fan. Notice how the front fan is only secured by two screws at the top with no screws securing the bottom portion of the fan. The pigtails for the fans are the 4-pin molex type only. Thermaltake did not include any 4-pin to 3-pin adapters, for those consumers that wish to use their motherboard headers and utilize automatic thermal control or manual control by way of a fan controller.