Nordost Leif Series Purple Flare USB 2.0 Cable
Low-Jitter Digital Audio Transfer in the Leif Series | Available at Trimira Audio The Nordost Purple Flare USB 2.0 Cable is a high-performance digital interconnect within Nordost's Leif Series, designed for computer-audio systems connecting computers, music servers, USB interfaces, and USB DACs. Combining silver-plated solid-core OFC conductors, controlled twisted-pair geometry, FEP insulation, dual-layer shielding, and precision USB termination, Purple Flare is designed to provide a carefully controlled physical connection for high-speed USB audio data. At Trimira Audio, we recommend the Purple Flare USB 2.0 Cable for listeners looking to upgrade the physical USB connection between a computer or music server and a compatible DAC. Key Features & Technological Innovations Silver-Plated Solid-Core OFC Conductors Purple Flare uses 4 × 28 AWG solid-core conductors manufactured from 99.9999% high-purity OFC copper with pure silver plating. The solid-core construction provides consistent conductor geometry and mechanical stability. Controlled Twisted-Pair Geometry The USB data conductors are arranged using controlled twisted-pair geometry designed to maintain the electrical characteristics required for USB 2.0 high-speed data transmission. The specified characteristic impedance is 90 Ω for the USB data path. High-Grade Extruded FEP Insulation The conductors are insulated with Fluorinated Ethylene Propylene (FEP), providing a mechanically stable, low-loss dielectric environment. The specified propagation velocity is 80% of the speed of light. Dual-Layer Shielding A combined foil-and-braid shielding architecture provides comprehensive coverage around the USB signal path, helping protect against: RF interference Electromagnetic interference External electrical noise High-frequency crosstalk Precision Hand Terminations Purple Flare USB 2.0 is available with custom gold-plated USB connectors including: USB Type-A → USB Type-B USB Type-A → Micro-B This makes it suitable for a range of computer-audio and USB-DAC configurations. Technical Specifications Specification Purple Flare USB 2.0 Cable Series Leif Series Insulation High-Grade Extruded Fluorinated Ethylene Propylene (FEP) Construction Mechanically Tuned Length & Twisted Pair Design Conductors 4 × 28 AWG Solid-Core Conductor Material Silver-Plated 99.9999% Solid-Core Oxygen-Free Copper (OFC) Impedance 90 Ω USB Data Standard Shielding Dual-Layer Shielding (Foil & Braid) Velocity of Propagation 80% Speed of Light Termination Options Custom Gold-Plated USB Type-A to Type-B or Micro-B Standard Lengths 0.6 m, 1.0 m, 2.0 m, 3.0 m, 5.0 m + Custom Lengths USB Audio Applications Purple Flare USB 2.0 is suitable for connections between: Computers and USB DACs Music servers and DACs USB audio interfaces Digital audio workstations Network-connected computers with USB audio output For USB audio, the cable carries digital data and USB power according to the USB interface specification. Its relevant physical characteristics include impedance, shielding, conductor geometry, connector quality, and reliable high-speed data transmission. Consult with the Digital Audio Specialists at Trimira Audio The Nordost Purple Flare USB 2.0 Cable provides a performance-focused USB connection within Nordost's Leif Series. Trimira Audio can assist with: USB Type-A, Type-B and Micro-B compatibility Cable length selection Computer-to-DAC configuration Music-server-to-DAC connections USB system architecture Complete Nordost digital-cable planning Private system auditions Purple Flare combines 28 AWG silver-plated solid-core OFC, controlled 90-ohm USB data geometry, FEP insulation, dual-layer shielding, and precision gold-plated USB termination in a dedicated Leif Series USB 2.0 cable.