Dell Inspiron 660 Vostro 270 Intel Socket LGA1155 Desktop Motherboard 6M1YN 06M1YN CN-06M1YN.Dell Part Number: 6M1YN 06M1YN CN-06M1YNCompatible Part Numbers: MIB75R/MH_SG 11068-1 48.3HD01.011Compatible Models: Dell Inspiron 660 Vostro 270