4” H-Class The H-Class is a family of high performance stationary label printers that thrive in a 24x7 work environment. Versatile and durable, the H-Class offers models that meet the requirements for even the most complex applications. The gear driven design and die-cast aluminum frame ensures you years of reliable service and a strong ROI. The H-Class 4-inch series generates labels up to 4.16 inches wide with outstanding print quality from 203 dpi to 600 dpi and high speeds of 6 to12 ips.