Brilliance mechanical connectors are great for quick OM3 and OM4 Multimode fiber connector repairs without having to call a fiber company with an expensive bill. Simple 3 step process and you can bring your network back online same day. These connectors are SC/UPC for OM3 & OM4 ( typically Aqua in color) fibers with a 900u jacket, typical found in patch panels. No expensive fusion splicer required, each pack comes with an instruction guide