EISCO Round Convex Glass Mirror 4" (100mm) Diameter 100mm Focal Length 2.5mm Thick Approx. industrial and all holes are through plated Size Name:HBT3: 73,5 X 51 X 25,5 mm and all holes are through plated for mounting strength Bi Directional SPDIF & Coaxial Converter Convert SPDIF Optical Toslink Audio Signal to Digital Coaxial Coax Audio Signal Convert SPDIF Optical Toslink Audio Signal to the same SPDIF Optical Toslink Audio Signal Convert Digital Coaxial Coax Audio Signal to SPDIF Optical Toslink Audio Signal Convert Digital Coaxial Coax Audio Signal to the same Digital Coaxial Coax Audio Signal Input Panel SPDIF (Optical Toslink) In Digital Coaxial In Power Indicator Light Switch Output Panel SPDIF (Optical Toslink) Out Digital Coaxial Out 5V1A DC Jack Plug and Play No need any software and drive there may be minor imperfections that do not affect physical function thickness varies as they are not designed to be consistent in that respect