StarTech.com 4-Port Serial PCIe Card Quad-Port PCI Express to RS232/RS422/RS485 (DB9) Serial Card Low-Profile Bracket Incl. 16C1050 UART Windows/Linux TAA Compliant - Level-4 ESD Protection

Add four RS-232 RS-422 or RS-485-capable DB9 Serial Ports to a desktop computer via PCIe x1 Expansion Card<br/><br/>Add serial communication support to a desktop computer or Small Form Factor (SFF) system using this 4-Port Serial PCI Express Card. The four DB9 ports can be independently configured to support RS-232 RS-422 and 2/4-wire RS-485 standards for communication with compliant serial peripheral devices.<br/><br/>Per-Port Serial Configuration<br/><br/>This PCIe Serial Card is equipped with on-board DIP switches enabling each DB9 serial port to operate in RS-232 RS-422 and/or RS-485 mode(s). The card features LED indicators per port providing real-time monitoring of port activity.<br/><br/>Configurable External SATA Power<br/><br/>The PCI Express Serial Adapter Card features three power modes that are configurable via on-board jumpers including 12V (1.5A per port) 5V (1.5A per port) or no power (RI) over pin 9.<br/><br/>Legacy Connectivity<br/><br/>This serial card enables the con