Add up to four serial peripherals with fewer conflictscompatible with most rs232 peripherals the manhattan serial pci express card with 5v power output includes an adapter that can attach up to four independent serial devices modems barcode scanners printers and more through a single pci card ideal for point of sale applications it helps eliminate separate peripheral power supplies reduce clutter and improve reliability its high speed 16c950 uart serial db9 com ports fully support pc