ADD-ENCLOSURE is a 1G Media Converter Enclosure. It is powered by an internal 110v/50 Hz power supply, and offers compatibility with a variety of AddOn's 1Gb media converter cards. Offering a great space/performance ratio, the ADD-ENCLOSURE covers various fiber media converter functions, including a variety of data rate, SM/MM, single and double fiber with simple setup. Addoncomputer.com Media Converters and Network Interface Cards are 100% compliant for all of our networking needs. Now you have a cost effective solution to your network upgrade needs. With our ADDON CERTIFICATION TEST Program, we can guarantee your product will work right the first time.