Like other well reviewed Micca M-Series audio and video products, Micca M-Series optical digital audio cables take the no-nonsense approach to building a high quality yet affordable cable. Using carefully selected materials and construction methods, every aspect of its design is geared towards delivering superior audio performance and durability. No fancy gimmicks or voodoo magic - just a great cable at a great price. Low-Loss Fiber - The cable uses a 1mm single strand low-loss plastic fiber in a 5mm OD cable jacket. With only 0.14dB/M attenuation, this cable not only outperforms many glass optic fiber cables, but is much more durable and less susceptible to damage due to bending. Slim Metal Connectors - M-Series optical cables use metal connectors with epoxy bonding for a secure and durable connection. Epoxy bonding does not exert any additional stress on the optical fiber, unlike common compression-fit connectors. The slim connector profile ensures that it will not interfere with adjacent connectors. Supple Cable Jacket - The M-Series optical cable jacket is made from a very supple PVC material, allowing the cable to be more easily routed without developing kinks. Unwrap an M-Series optical cable and it will be naturally straight with no stress on the optic fiber within, versus cables with stiff jackets or net-wraps that remain coiled. Free-Floating Strain Relief - Lack of well designed strain relief is a common cause for cable failure. M-Series optical cables are built with a proper free-floating strain relief design that does not transmit stress to the cable jacket when the cable is bent or twisted. In contrast, molded-in strain relief pulls on the cable jacket, eventually resulting in cracks. Simple Packaging - M-Series optical cables are shipped in a zip-top plastic bag. It"s simple, easy to open, reusable, and lowers cost.