Sunix product page: CDK1456PL SUNIX CDK1456PL, PCI Express serial communication board, allows users to expand four RS-232 DB9M COM ports, one Cash Drawer 6-pin RJ-11/12 socket, and one +12VDC power jack on PC-based system. The board is compatible with PCI Express Base Specification Revision 1.1, allowing it to be installed in virtually any PC-based systems. This card has 128-bytes onboard FIFO buffer and compatible with 16C950 UART specification. CDK1456PL supports +5 or +12VDC of power from each serial port via COM 1st and 9th pin output. It's convenient for users connecting serial devices without addition external power supply. For the cash drawer interface, user can operate both +12 and +24 Voltage cash drawers by implemented SUNIX Windows based API (Application Programming Interface). Both RS-232 and Cash Drawer interface are designed with SUNIX UART controller, SUN1999 and as well built with many of SUNIX advanced features and technologies, making it the best solution for commercial retail automation applications. Features * Expands four independent RS-232 serial ports with communication speeds up to 115.2Kbps. * Expands single 6-pin RJ11/12 Type Cash Drawer interface to drive +12 / 24VDC Cash Drawer. * Expands single +12VDC Power Jack to connect POS peripheral, such as touch display. * High speed SUN1999 16C950 compatible UART controller on-board. * Full single-lane (or x1) PCI Express throughput. * Designed to meet PCI Express Base Specification Revision 1.1 * Provides RS-232 serial ports with +5 or +12 VDC power output via COM 1st or 9th pin. * On-chip hardware auto flow control to guarantee no data loss. * Built-in 2KV ESD protection for all serial signals. * Low profile bracket design idea for slim or portable PC. * Plug-n-Play, I/O address and IRQ assigned by BIOS. * SUNIX Windows based APIs for user easily implement Cash Drawer operation. * Certified by CE, FCC, RoHS, and Microsoft WHQL approval. * Support Microsoft Windows and Linux.