LC Duplex coupling adaptors with a multimode configuration for SC cut-out. These LC duplex coupling adaptors have a panel cut out of 13 x 9.5mm and a maximum panel thickness of 1.7mm. Stock number 788-4518 is flanged with a blue UL 94-V0 thermoplastic housing and metal alignment sleeve. Stock number 788-4511 is flangless with a beige UL 94-V0 thermoplastic housing and metal alignment sleeve. Stock number 820-8218 is flanged with a blue UL 94-V0 thermoplastic housing and ceramic alignment sleeve. Stock number 788-4515 is flanged with an electroless nickel plated die cast zinc housing and ceramic alignment sleeve.