USB POS Printer with 58mm Thermal Paper Rolls - 90mm/sec High-speed Printing (Black) Low power consumption,Low operating costs (no ribbons, ink cartridges) Easy paper loading structure, reasonable structure, easy to use maintenance Built-in data buffer (when printing can receive print data) Compatible ESC/POS print commands set . Suitable for Windows2000, Windows XP, Windows2003 ,Windows Vista, Windows 7, Windows 8