High-speed marking LM-390A has an enhanced feeding and half-cutting system that provides you with marking speed at 35mm/second. LM-390A can make 50pcs of 20mm-length tube per minute. *Maximum 100,000 characters : built-in large memory storage *Easy access from your PC with USB LM-390A features USB port for direct connection with windows personal computer, as well as USB Memory SLO for off-the-line data exchange with pc by "Letatwin PC editor. Large and backlit LCD display Backlit LCD display makes your operation easy. 7.5kg, original packing.