Yes I have researeced about them the whole day.......
Ok It goes from Noise, Air Delivery, Size, RPM
Noise Air Delivery Size RPM
ARKUA 7228 46.7 38.4 60x60x25 7000
Thermal Take 39 53 80x80x25 5000
V7
Thermal Take 48 75.7 80x80x25 4800
V9
Vantec 39.5 30 - 5500
Copper X
Delta 46.5 37.6 60x60x25 6800
Black Label
YS Tech 37 48.5 80x80x25 3300
Vantec 55.2 84.1 80x80x38 5700
Tornado
Delta 54.5 50.15 60x60x38 8000
I think some of these fans can't be found by itself. It comes with the heatsink
Ok It goes from Noise, Air Delivery, Size, RPM
Noise Air Delivery Size RPM
ARKUA 7228 46.7 38.4 60x60x25 7000
Thermal Take 39 53 80x80x25 5000
V7
Thermal Take 48 75.7 80x80x25 4800
V9
Vantec 39.5 30 - 5500
Copper X
Delta 46.5 37.6 60x60x25 6800
Black Label
YS Tech 37 48.5 80x80x25 3300
Vantec 55.2 84.1 80x80x38 5700
Tornado
Delta 54.5 50.15 60x60x38 8000
I think some of these fans can't be found by itself. It comes with the heatsink