Add one parallel and two serial ports to your Windows® or Linux desktop PC using this PCI-Express Dual Serial and Parallel Port Card from Monoprice! This single-lane (x1) PCI-Express card uses the MOSCHIP MCS9901 chipset to provide two RS-232 serial ports and one IEEE-1294 parallel port. It features a female DB-25 connector on the main support bracket and two male DE-9 (aka DB-9) serial ports on a second bracket, which connect to the card via a ribbon cables. It also includes half-height support brackets for use in low-profile computer cases.