Item No.:JF-2804 Product Name:FC type patch cord JF-2804SS simplex, single mode(9/125um) JF-2804SM simplex, Multi-mode (62.5/125um) JF-2804DS Duplex, single mode JF-2804DM Duplex, Multi-mode > Cable length: 1, 2, 3, 5, 10 m.