The Digi Neo PCIe 4 Port Multiport Serial Adapter 50001341-04 REL 1409 is a serial adapter card designed for expanding ports on a PCI compatible system. With four external serial card interfaces, this adapter allows for easy connection of multiple serial devices for efficient communication and data transfer. The Digi brand ensures reliability and compatibility with universal systems, making it a versatile solution for enhancing your computer's connectivity options. Dongle or cable not included.