This is a genuine OEM CPU Fan & Heat-sink Cooling system assembly for Optiplex 9020 7070 5050 3050 (MFF) Micro Form Factor Tower Desktop series, Brand NEW and Unused from OEM factory, if your PC fan is running very loud or not functioning then a replacement may be needed. D P/N: 27H4V, 027H4V 8M4GF, 08M4GF 5JV3N, 05JV3N 2N51K, 02N51K KG9KP, 0KG9KP Compatible Part Number(s): PVB070E05N-P02, EF70150SX-C020-S9A Specifications: Direct Current: DC 5V / 1.10A, 11.0 CFM Min Color: Black Power Connection: 4-pin 4-wire Compatibility with models: Optiplex 9020 MFF Tower Desktop Optiplex 7070 MFF Tower Desktop Optiplex 7060 MFF Tower Desktop Optiplex 7050 MFF Tower Desktop Optiplex 7040 MFF Tower Desktop Optiplex 7020 MFF Tower Desktop Optiplex 5070 MFF Tower Desktop Optiplex 5060 MFF Tower Desktop Optiplex 5050 MFF Tower Desktop Optiplex 5040 MFF Tower Desktop Optiplex 3070 MFF Tower Desktop Optiplex 3060 MFF Tower Desktop Optiplex 3050 MFF Tower Desktop Optiplex 3046 MFF Tower Desktop Optiplex 3040 MFF Tower Desktop Optiplex 3020 MFF Tower Desktop Each pack includes: 1x 35W CPU Cooling Heat-sink Fan assembly