4-Port RS-232 Expansion: Instantly adds four RS-232 (DB9) serial ports to any PCI Express–enabled computer - perfect for connecting industrial equipment, POS systems, and serial devices
High-Speed Performance: Built-in 16950 UART with 256-byte FIFO buffers supports baud rates up to 921.6 Kbps for fast, stable data communication
Selectable Power Output (5V / 12V): Each port can supply 5V or 12V power for devices such as barcode scanners, POS displays, and serial printers — easily configured via onboard jumpers
Broad System Compatibility: PCI Express x1 interface works with x1, x4, x8, and x16 slots; supports 5–9 bit serial formats and hardware/software flow control
Reliable & Durable Design: Onboard power connector ensures a stable power source for powered serial devices; ideal for multitasking environments and industrial applications
Dual-Profile Brackets Included: Includes full-height and low-profile brackets, fitting both standard and compact computer systems