Review on Set of 2 Slim Optical Audio Cables - 6ft/1.8M, 24K Gold-Plated, Ultra-Durable - Ideal for Home Theater, Sound Bar, TV, PS4, Xbox, Playstation & More by John Wood

I ordered this for my old stereo receiver and the first of the two cables worked fine (haven't tried the second). The quality is cheap, but the price is low, so everything seems fine to me in this regard. However, I wanted to point out that my package came with an odd unmarked white USB device and no additional documentation showing what the device was for. device exists. I haven't used it (nor plan to as it's very suspicious) but wanted others to know. I have attached a picture of my second unused cable and USB device.