Windows XP / W7--32/64bits / W8--32/64bits. 220V / 50HZ / single phase or 110V / 60HZ / single phase. Upgrade to a new case for easy cooling! Laser Source is JPT 50W. 50W is very powerful, it can engrave metal in deep.Opitional rotary device, each one is 200usd. If need show true value or other value please let us know in advance. The item "Jpt 50w fiber laser marking machine metal engraver for steel gold silver jewelry" is in sale since Wednesday, March 18, 2020. This item is in the category "Business & Industrial\Printing & Graphic Arts\Screen & Specialty Printing\Engraving". The seller is "goldmarklaser" and is located in jinan. This item can be shipped worldwide.