4 x USB 2.0, 1 x VGA, 1 x RJ-45 LAN, PS/2 Keyboard/Mouse, 1 x Serial, and 1 x Parallel port.
If you are upgrading this vintage board, the missing manual would warn you about these three things: acer g41m07 motherboard manual
Acer G41M07 (often found in Acer Veriton M275 systems) is a microATX motherboard manufactured by Foxconn. Because it was originally an OEM part, finding a dedicated "Acer" branded manual can be difficult; however, it follows standard Foxconn G41-series layouts for pinouts and configuration. The Retro Web Core Specifications LGA 775 (Socket T). Intel G41 + ICH7. 2 DDR3 DIMM slots. 4 x USB 2
Here is the hard truth: