LGA1150 For dell Optiplex 7040 MFF Series Micro Mini Desktop PC Motherboard DDR4 CN-0K539V K539V N6NV0 Mainboard - AliExpress
New For Dell Optiplex 7040 Mff Series Micro Mini Desktop Pc Motherboard Ddr4 Cn-0k539v 0k539v K539v N6nv0 Lga1150 Mainboard - Motherboards - AliExpress
Dell Optiplex 7040 Micro i5-6500T 2.50GHz 8GB 256GB SSD Win 10 Pro 1 Yr Wty | Revive IT
New For Dell Optiplex 7040 Micro Motherboard CN-096JG8 096JG8 96JG8 03YX5F CN-03YX5F 21YVC LGA1151 DDR4 Mainboard 100% tested