Easily adds two serial ports and one parallel port through an available PCI Express slot. 16C650 UART serial port with data transfer rate up to 250Kbps. Compliant with PCI Express 2.0 Gen 1. Compatible with IEEE 1284 -1994 parallel port standard for SPP/Byte/ECP Mode. Single-lane (X1) PCI Express end-point controller with PHY integrated. Full serial modem control. Hardware and software flow control. 5, 6, 7, 8 and 9-bit serial format. Even, odd, none, space and mark parity. On chip 256 byte depth FIFO buffers in transmit, receive path of each serial port. Works as standard RS-232 port or with 5V or 12V power output for devices that require power (such as handheld scanners, table scanners, POS displays, etc.), power output configurable via jumpers. Complies with PCI bus Power Management Interface Specification Revision 1.2. Dual-profile design fits full height and low-profile system chassis with the included spare low-profile brackets. Perfect solution to connect with POS systems, industrial testing and control devices, security systems, logistic management equipment, printers, scanners, etc.