Fiber help




I hope i could get some help on what probley seems to some a simple question but i am running around in cirles,

my question is that i have a 3com superstack 2 network switch with a fiber link on it that is faulty it has an sc connetor on it with a orange cable that connectes to a fiber patch panel with st connectors on it i have googled and googled and can not find a new switch with sc connectors on it only sfp, but i can not seem to find an st to sfp cable but that is probley to simple a solution

Can anybody point me in the right direction