The PCIe slot is limited to 75W (no external PSU cables). The best GPU you could install in 2021 without modding was a GTX 1650 or RX 6400 (low-profile for SFF).
If you own this motherboard in 2021, here is your realistic upgrade ceiling: hp fxn1 e93839 motherboard specs 2021
Usually includes VGA , DisplayPort , DVI , multiple USB 2.0 ports, and RJ-45 Ethernet . Storage: Support for SATA III (6Gb/s) and SATA II . Key Considerations for 2021/Current Use The PCIe slot is limited to 75W (no external PSU cables)