The Shuttle POS X503 is a valued All-in-One POS Terminal PC boasting a 39.6cm (15.6-inch) LCD touchscreen powered by Intel's dual core Atom processor D2550. This system is compatible with Windows 7 POS applications and suitable for small and medium retailers to serve customers effectively. Equipped with four USB ports and two COM ports if offers sufficient connectivity for typical POS peripherals like receipt printer, customer display, barcode scanner, keyboard, mouse and more. In addition, the HDMI and VGA ports can be used to drive a second display with basic digital signage applications. POS X503 offers a high level of reliability and is a lower priced alternative to conventional POS systems.