AudioQuest 1.5m Forest USB-C > A High-Definition Audio Cable Semi-Solid Concentric 0.5% Silver ConductorsSemi-Solid Concentric Conductors greatly reduce strand-interaction distortion and reduce jitter. Solid silver-plated conductors are excellent for very high-frequency applications, like USB audio and video. These signals, being such a high frequency, travel almost exclusively on the surface of the conductor. As the surface is made of high-purity silver, the performance is very close to that of a 100% silver cable, but priced much closer to solid copper cable. This is an incredibly cost effective way of manufacturing very high-quality USB cables. Metal-Layer Noise-DissipationIt's easy to accomplish 100% shield coverage. Preventing captured radio-frequency interference (RFI) from modulating the equipment's ground reference requires AQ's Noise-Dissipation. Traditional shield systems typically absorb and then drain noise/RF energy to component ground, modulating and distorting the critical "reference" ground plane, which in turn causes a distortion of the signal. Noise-Dissipation "shields the shield," absorbing and reflecting most of this noise/RF energy before it reaches the layer attached to ground. Hard-Cell Foam InsulationHard-Cell Foam (HCF) Insulation ensures critical signal-pair geometry. Any solid material adjacent to a conductor is actually part of an imperfect circuit. Wire insulation and circuit board materials all absorb energy. Some of this energy is stored and then released as distortion. Hard-Cell Foam Insulation is similar to the Foamed-PE used in our more affordable Bridges & Falls cables, and is nitrogen-injected to create air pockets. Because nitrogen (like air) does not absorb energy and therefore does not release any energy from or into the conductor, distortion is reduced. In addition, the stiffness of the material allows the cable's conductors to maintain a stable relationship along the cable's full length, producing a stable impedance character and further minimizing distortion. Direction-Controlled ConductorsAll drawn metal strands or conductors have a non-symmetrical, and therefore directional, grain structure. AudioQuest controls the resulting RF impedance variation so that noise is drained away from where it will cause distortion. The correct direction is determined by listening to every batch of metal conductors used in every AudioQuest audio cable. When applicable, arrows are clearly marked on the connectors to ensure superior sound quality. For most models of AQ cable, the arrows not only indicate the direction that optimizes metal-directionality as part of Noise-Dissipation, but also indicates non-symmetrical attachment of shield and GND in order to optimize full-system performance. A fundamental aspect of AudioQuest's multifaceted Noise-Dissipation technology, Direction-Controlled Conductors ensure induced noise is dissipated and drained properly.Hard Cell Foam Insulation: Hard Cell Foam insulation ensures critical signal pair geometry.Semi Solid Concentric Silver Conductors: Semi Solid Conductors greatly reduce strand-interaction distortion and reduce jitter. Solid silver-plated conductors are excellent for very high-frequency applications, like USB audio and video.RF Noise Directionality: All conductors controlled for RF noise directionality Key Features & Technology Explained Semi-Solid Concentric Conductors Semi-Solid Concentric conductors significantly reduce strand-interaction, a major source of dynamic distortion in cables. 0.5% Silver Metal 0.5% Silver-Plating is applied to AudioQuest’s Long-Grain Copper (LGC) conductors to improve Noise-Dissipation. Direction-Controlled All internal conductors are Direction-Controlled to reduce RF noise. Hard-Cell Foam Insulation (HCF) Hard-Cell Foam's high air content minimizes energy absorption for clearer sound. Forest USB-C > A Cinnamon USB-C > A Carbon USB-A > C Diamond USB-C > A Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews 4.2 out of 5 stars 12 4.2 out of 5 stars 20 5.0 out of 5 stars 1 — Price $89.95$89.95 $129.95$129.95 $229.95$229.95 — no data Metal 0.5% Silver Semi-Solid Concentric 1.25% Silver Semi-Solid Concentric 5% Silver Semi-Solid Concentric Solid Perfect-Surface Silver (PSS) Noise Dissipation Metal-Layer Noise-Dissipation Metal-Layer Noise-Dissipation Carbon-Based Noise-Dissipation for USB A - B and USB 3.0 A - 3.0 Micro Carbon-Based Noise-Dissipation for USB A - B and USB 3.0 A - 3.0 Micro Voltage 5 5 5 5 Finish Gold Gold Silver Silver Dielectric Hard-Cell Foam Hard-Cell Foam Hard-Cell Foam Hard-Cell Foam