HP 2-Port Powered Serial Card (KH887AA) The HP 2-Port Powered Serial Card is a PCI form factor card which features two high-performance serial ports with DB-9 connectors. Each serial port can be independently configured to deliver 5 or 12 volts of power to compatible serial devices eliminating the need for external power supply bricks. Dimensions (w x d x h) 4.0 x 4.9 in (101.5 x 125.0 mm) Weight 0.15 lb (68.0 g) Connect multiple powered RS-232 serial devices to your HP rp5700 Point of Sale system Plug and play Eliminate individual power supply bricks for serial devices Award winning HP Service and Support 3 Year Warranty when installed in a new rp5700 Retail POS System Warranty Feature The HP 2-Port Powered Serial Card has either a one-year limited warranty or the remainder of the warranty of the HP product in which it is installed. Technical support is available seven days a week, 24 hours a day, by phone, as well as online support forums. Certain restrictions and exclusions apply.