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The GT4 NCF USB-C, where cutting-edge technology meets unrivaled performance. Built upon Furutech's decades-long expertise, this cable incorporates the revolutionary Nano Crystal² Formula (NCF) into its design.
Central to the GT4 NCF USB-C is its NCF Connector Shell, boasting a multi-material hybrid construction. This innovative shell harnesses the power of Furutech’s special crystalline NCF (Nano Crystal² Formula) material with dual 'active' properties: first, it eliminates static by generating negative ions, and second, it converts thermal energy into far infrared. Furutech enhances this material with nano-sized ceramic particles and carbon powder, leveraging their piezoelectric effect damping properties.
Experience an enhanced depth and focus in the soundstage, enriched harmonics, and perfectly balanced tonalities with the GT4 NCF USB-C. Thanks to NCF technology, low frequencies resonate cleaner, with unparalleled definition and a lowered noise floor, ensuring every note is rendered with utmost clarity and precision.
With over 30 years of expertise, Furutech combines Pure Transmission and Nano Crystal² Formula (NCF) technologies to redefine audio excellence. By eliminating electrical and mechanical resonance, this cable ensures smooth and detailed sound reproduction, especially with high-resolution recordings.
Crafted with precision, the GT4 NCF USB-C features silver-plated α (Alpha) OCC conductors and highdensity polyethylene insulation for optimal signal transmission. Its four-layer shielding and plated USB type-C connectors minimize noise interference, resulting in improved imaging, focus, and sound staging.
Elevate your listening experience with the GT4 NCF USB-C. Discover the difference and immerse yourself in the purest form of music enjoyment. Furutech's Revolutionary Two-Stage Alpha Process: Furutech pioneers’ innovation with a cutting-edge two-stage process designed to enhance audio system performance. In the first stage, metal components undergo deep cryogenic freezing, reducing internal stress and improving structural stability, thus enhancing conductivity and signal transfer.
The second stage involves Furutech's patented Ring Demagnetization treatment, eliminating magnetization effects for immediate improvements in conductivity. Every metallic component undergoes this treatment, ensuring stress-free, stable, and highly conductive materials. The result? A meticulously engineered synergy of the 2-Step Alpha Cryogenic and Demagnetizing Process, delivering optimized AC power transfer and heightened power, dynamics, and resolution. Experience cleaner backgrounds, expansive soundstage, vivid tonal colors, and deeper frequency range extension.
Important Cable Direction Notice:
This USB cable is directional and should be connected in the recommended orientation for optimal audio performance. Connecting the cable in the reverse direction will not damage the cable or your equipment; however, it may result in reduced audio quality. For the best sound reproduction, please follow the direction indicated below:

The GT4 NCF USB-C is engineered to deliver outstanding performance across a wide range of high-resolution audio applications, including:
- High-end portable audio systems
- USB DACs and digital audio converters
- Premium headphone listening systems
- Computer-based audio systems
- Network and streaming audio front ends
- Smartphone and tablet audio playback
- High-resolution video and multimedia systems
- NCF Connector Shell (Multi-material hybrid construction): NCF features a special crystalline material that has two ‘active’ properties. First, it generates negative ions that eliminate static. Second, it converts thermal energy into far infrared. Furutech combines this remarkable material with nano-sized ceramic particles and carbon powder for their additional ‘piezoelectric effect’ damping properties. The resulting Nano Crystal² Formula is the ultimate electrical and mechanical damping material. Created by Furutech, it is found exclusively in Furutech products. NCF delivers improvements in the depth and focus of the sound stage, harmonics and tonal balance with NCF. Low frequencies are cleaner, with a greater sense of definition made possible by a lowered noise floor.
- USB Grade: USB4 40G 240W (48V/5A) support (it also supports the USB PD (USB Power Delivery) standard, and if it supports USB PD EPR, it can supply up to 240W of power.)
- Main conductor: Silver-plated α (Alpha) OCC Conductors
- Main Insulation: Special-grade high-density polyethylene
- 4-layer shield construction for improved noise insulation
- Connectors: Furutech-engineered deep gold-plated copper alloy USB type-C series connectors (minimal magnetic)
- The best damping and insulation materials for improved frequency extension and tonal balance.
- Video Output Support: Allows for smooth transfer of large files such as 4K videos. The monitor must support USB type-C video signal input.
- Transfer Speed (Theoretical): Supports high-speed data transfer up to 40Gbps.
- Power Delivery: Supports power delivery up to 240W (48V/5A).
- Video Output: Enables video output capabilities not found in conventional USB standards. Based on Thunderbolt 3 technology, USB4 supports video signal output in addition to data transfer and power delivery.
- USB Type-C Connector: USB4 is standardized with the USB Type-C connector. Since USB Type-C is reversible, it can be plugged in without worrying about orientation.
- Compatibility: USB4 features backward compatibility. While transfer speeds and functions will be limited to the older version's standards, it can still connect to existing USB standards such as USB 2.0 and USB 3.0.
- The latest Thunderbolt versions are compliant with USB4, enabling high-speed data transfer and video output when connected.
- Cable Lengths: 0.18m (0.6ft) / 0.6m (2ft) / 1.2m (4ft)
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Notes:
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Furutech recommends a minimum burn-in period of 24 hours to allow the product to fully settle into your system.
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While this cable is compatible with USB4, achieving the full transfer-speed performance of USB4 may require appropriate configuration adjustments based on your device and operating environment.
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Furutech uses non-magnetic copper alloys for certain components. However, these parts may exhibit slight magnetism due to stresses introduced during the manufacturing process.
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