Sphere 48 is an improved version of the original Uni-Path, Composilex 3 insulated design. This cable looks and sounds better than the original. The cable structure features three layers of shielding for freedom from interference and is highly flexible for ease of installation and increased durability. With this refined structure and ultra-quiet Composilex 3 insulation, Sphere 48 provides enhanced performance and superior long-term value. In addition to supporting all HDMI2.1 features and capabilities, Sphere 48 is also UL-CL2/FT4 rated for in-wall installation.