Serial ports are rarely used on PCs these days, so it's not surprising that motherboards don't typically take up valuable rear panel real estate. Currently, most motherboard designs still have a classic COM port connector, but this may change in the future as motherboard real estate becomes more valuable. Soon USB or PCIe serial solutions could be the only way to add COM ports. Our ASUS P8Z77V motherboard has such a connector, and we already had a card slot flange with an integrated cable at hand, but the cable didn't reach the connector. Connectors on the motherboard so we used a hex screwdriver to remove the existing DB9 connector and cable and inserted the 16" StarTech cable into the D-hole on the flange. This was a good way to get a serial port on the back of our PC.