IntelR CPU clock speed (maximum): Pentium D 3.4GHz (95W) Prescott 3.4GHz (84W) IntelR core 2 Duo E6700 x 2.66GHz (65W) IntelR core 2 Duo E4300 1.8GHz (65W) Intel core 2 extreme x6800 2.93GHz (75W) All Celeron Cooler dimensions (mm): 89 x 89 x 67 Cooler weight (g): 402 Fan: Type: 12V/1B1S, 12V/entering bearing Dimensions (mm): 80 x 80 x 25 Speed (rpm): 3,200 (+/-10%) Airflow (CFM): 44.1 (+/-10%) Noise (dBA): 32 Interface material: high efficiency thermal compound, depends on air flow inside PC system Install appropriate case fan to provide enough air flow in PC system, then Idloo 5062 CU/(E) can support up to Pentium D 3.4GHz (95W), Prescott 3.4GHz (84W), IntelR core 2 Duo E6700 x 2.66 GHz (65W), IntelR core 2 Duo E4300 1.8 GHz (65W), IntelR core 2 extreme x6800 2.93 GHz (75W) and all Celeron CPUs Fan approved by CE, TUV and UL