VANAUX Optical Digital Cable Converter, Round to Square S/PDIF Mini TOSLINK 3.5mm Mini Toslink, Suitable for Home Theater, Soundbars, TVs, PS4, Game Consoles, etc. (Round to Square, 3M) Thank you for viewing. I purchased this new, but it didn't fit my home audio system, so I am selling it. I only inserted it into a device once, so there are no stains, but please consider this a pre-owned item before purchasing. (Reference URL) https://amzn.asia/d/9iiksQA