Cooling
The case comes with 3 case fans. 2 x Cooler Master 80mm fans at the front and 1 x Cooler Master blue LED fan at the rear. What I find unusual about the cooling within the Black Widow is the 2 intake fans are Cooler Master. Usually they use YS-tech fans but I'm assuming this is so all the fans match, (CM LED exhaust fan/CM intake fans).
Cooler Master Sleeve Bearing - Intake Fans
The fans in the front of the Black Widow are Cooler Master A8025-21CB-43N-P1. Although I cannot find any technical details on them. They are 4 pin fans with a pass through cable and sleeve bearing. I'd guess they are a similar specification to the Cooler Master LED fan.
Cooler Master LED Fan - TLF-R82 - Exhaust Fan
The LED fan is positioned at the rear of the case exhausting
hot air away from the CPU. Not only does the fan perform quite well
but it looks very nice in the dark shadows of the case.
Features