Please what type of PCI is this AOC CGP i2 ? disapproved to my pciex4 port on pc board. It is possible any adapter ? thanks

That looks non-standard. I guess that it's some kind of add-on module for a specific motherboard

Information from SuperMicro web page says it's a PCIe device, but it does seem to feature some proprietary slot format (called MicroLP).

They are usually for 90 degree risers in their rackmount cases that have 1-2 PCIE slots on them.