This board uses non-standard power connectors and mounting holes. It is generally not compatible with standard aftermarket ATX cases without significant modification.
It is designed to work with HP's proprietary power supplies, usually around 240W in the SFF configuration. hp fxn1 e93839 motherboard specs
Despite its compact size, the board offers essential expansion options for business and light computing: This board uses non-standard power connectors and mounting
1x PCI Express x16 (for low-profile graphics cards like the Nvidia GT 1030 ). 1x PCI Express x1. Legacy PCI slots (varies by specific sub-model). DisplayPort and VGA for video output. Multiple USB 2.0 ports (standard). Gigabit Ethernet (RJ-45). Standard PS/2 ports for keyboard/mouse and audio jacks. Important Considerations for Upgraders hp fxn1 e93839 motherboard specs