Suited for high-volume printing, Tharo System's H-427 and H-436 Series Thermal Transfer Label Printers feature a full backlit LCD display and standard real-time clock. The systems use "ink in" or "ink out" ribbons, with a 450 m capacity; along with serial, parallel, PS/2 and USB interfaces. Stripper Sensor for strip-and-peel or tear-off applications also comes standard. The H-Series contain internal memory for storing downloaded label formats, graphics and fonts.