Fiber optic patch panel for 24xLC duplex sockets, 48,3 cm ( 19 inch )/1U, without LC couplings, black, Synergy 21, 24x fiber optic coupling, LC socket/LC socket, 9/125u single mode, duplex, PVC, ceramic sleeve, with Flange, Synergy 21 fiber optic patch panel for 24xLC duplex sockets, 48,3 cm ( 19 inch )/1U, without LC couplings, black, Synergy 21, fiber optic coupling, LC socket/LC socket, 9/125u single mode OS2, blue, duplex , PVC, ceramic sleeve, with flange, Synergy 21