HP Engage Go 13.5 inch Mobile System POS TerminalHP Engage Go 13. 5 inch Mobile System POS Terminal Designed to thrive in evolving business environments, the HP Engage Go 13. 5" Mobile System POS Terminal is built to deliver across todays demanding landscapes. This flexible device easily transitions from fixed, counter based operations to a portable tablet that can accompany your team on the floor, in line, or at on site service calls. Its durable construction, large 13. 5 inch display, and