Desktoo fber laser marker come with the desk and computer. more easy to operate. lt main used to marking and engravincmetal like stainless steel, carbon steel, aluminum, gold, silver ect. Also it can be used to cut silver, gold, brass ect material. Thepower has 20w, 30w, 50w,60, 80w, 100w. There also have Mopa laser, do color marking. lt’s a good choise for customer.