Amazon.com: WWWFZS MotherboardsKM92T, Fit for DELL Alienware X51 R1 System Motherboard 1717 cm DDR3 H61 Lga 1155 Motherboard Original Desktop Mini Itx 0KM92T KM92Motherboard Processor Motherboard chip : Electronics
Used For DELL Alienware X51 R3 Desktop Motherboard LGA1151 Z170 CN 026CD3 026CD3 26CD3 MB Fast ship|PC Power Supplies| - AliExpress
Amazon.com: WWWFZS MotherboardsKM92T, Fit for DELL Alienware X51 R1 System Motherboard 1717 cm DDR3 H61 Lga 1155 Motherboard Original Desktop Mini Itx 0KM92T KM92Motherboard Processor Motherboard chip : Electronics