SUNIX SER6437A, PCI Express serial communication boards meet the PCI Express Base Specification Revision 2.0. It is compatible with PCI Express x1, x2, x4, x8 and x16 lane Bus allowing it to be installed in virtually any PC system. The majorities of today’s motherboards is not equipped with serial ports or only have one serial port. With SUNIX PCI Express serial board, users can add 2 serial ports to their system, allowing them to use serial devices further. SUNIX SER6437A card has 128-bytes onboard FIFO buffer and compatible with 16C950 UART specification. It is designed with SUNIX UART controller, SUN2212 and as well built with many of SUNIX advanced features and technologies, making it the best solution for commercial and industrial automation applications. Features Expands 2 independent RS-232 serial ports with communication speeds up to 115.2Kbps. With high reliable SUNIX SUN2212 native PCI Express 16C950 UART controller. Designed to meet PCI Express Base Specification Revision 2.0. Supports x1, x2, x4, x8, x16 (lane) PCI Express Bus connector keys. On-chip hardware auto flow control to guarantee no data loss. Built-in ± 15KV ESD protection for all serial signals meets IEC1000-4-2 standard. Plug-n-Play, I/O address and IRQ assigned by BIOS. Certified by CE, FCC, RoHS, and Microsoft WHQL approval. Support Microsoft Windows, Linux, and DOS. General Interface RS-232 Controller SUNIX SUN2212 (16C950 UART Compatible) BUS PCI Express Spec 2.0, Single-Lane (x1) IRQ & IO Assigned by System Serial Communication Interface RS-232 No. of Port 2-port FIFO 128byte Hardware Signal DCD, TxD, RxD, RTS, CTS, DTR, DSR, GND, RI Baud rate 50bps ~ 921.6Kbps Stop bit 1, 1.5, 2 Parity even, odd, none, mark, space Flow Control None, Xon/Xoff, RTS/CTS Protection ±15KV ESD protection for each signal Human Body Model (HBM) ±15KV IEC1000-4-2 Air Gap Discharge ±8KV IEC1000-4-2 Contact Discharge PCB Connector DB9 Male Driver Support