The Sony AC adaptor is a brand new OEM replacement item. It has been manufactured with very high standards making it a safe, reliable, efficient and long-lasting source of power for your laptop. Stick with a quality AC adaptor for a safer & smarter power supply. This adaptor can be used to replace your old adaptor or can be kept at home or in your office as a spare adaptor so you never have to worry about losing power when you need it!