What's worse then coming up with a short cable? Not having a coupler to extend it.  We have cloned the Optical coupler and made it a bit more affordable.  The OpticalCon Coupler comes in two version, Single Mode and Multi Mode.Please be mindful of which version of the OpticalCon Coupler you need for your project.

Single Mode = Blue

Multi Mode = Black

Orange Color shown for image and device clearification.