SC to SC simplex coupling adapters with a multimode and singlemode configuration. These SC to SC simplex couplers are flanged and have moulded body latches for panel mount retention. The panel cut out for these SC to SC simplex adapters is 13.10 x 9.60mm with a maximum panel thickness of 1.7mm. Stock number 782-7782 has a metal alignment sleeve and a blue PBT plastic housing Stock number 788-4530 has a ceramic alignment sleeve and a blue PBT plastic housing Stock number 788-4533 has a ceramic alignment sleeve and an electroless nickel plated diecast zinc body