NZXT RL-KRX53-R1. Purpose: Processor, Fan noise level (min): 22 dB, Fan noise level (max): 33 dB. Fan power consumption: 2.2 W, Fan voltage: 12 V, Fan current: 0.18 A. Type: Internal, Water block material: Copper/Plastic, Radiator material: Aluminium. Fan diameter: 12 cm, Fan dimensions (W x D x H): 120 x 26 x 120 mm, Radiator width: 27.5 cm