If you have acquired one of these boards—perhaps from a decommissioned HP server or a surplus lot—you likely found that it did not come with a box or documentation. Finding the specific can be a challenge, as Pegatron primarily manufactures OEM (Original Equipment Manufacturer) hardware for larger brands.
Intel H55 (with support for H57/Q57 variants depending on specific SKU). Memory Support: 4x 240-pin DDR3 DIMM slots. Supports 1066/1333 MHz non-ECC, unbuffered memory. Maximum of 16 GB. Expansion Slots: 1x PCI Express x16 (for discrete graphics). 1x PCI Express x4. 1x PCI Express x1. 1x Legacy PCI slot. pegatron ipmip-gs rev 1.02 manual