The , carrying the PCB part number E93839 , is a micro-ATX (or sometimes proprietary BTX derivative) motherboard manufactured by Pegatron for HP. It is typically found in HP Compaq business line desktops released between 2012 and 2014. However, revised versions of this board (with the same FXN1 name) appeared in entry-level HP Pavilion models as late as 2016.

Unlike many consumer boards, the FXN1 E93839 features a proprietary front-panel header and custom power delivery for HP’s chassis. Standard ATX cases may require rewiring of the power switch/LED connectors.

2026-04-12 Product Type: Proprietary Micro-ATX Motherboard Primary Use: HP All-in-One (AiO) Desktop PCs (e.g., HP 200 series, HP ProOne 400 G2, HP EliteOne 800 G2) Manufacturer: Hewlett-Packard (Manufacturer Part Number: E93839)

: This board uses a non-standard 6-pin power connector instead of the industry-standard 24-pin ATX connector. It requires a compatible HP power supply Form Factor