Conductors: 99.99% oxygen-free copper for high-quality and stable digital signal transmission Insulation (inner jacket): HD-PE with foamed PE insulation ensures clear image quality and stable signal transmission First shielding: 100% aluminum foil to block high-frequency noise and external electromagnetic interference Second shielding: 100% aluminum foil for enhanced noise rejection Third shielding: 95% aluminum-magnesium braid provides maximum protection against EMI and RFI Insulation (outer jacket): Environmental PVC jacket with protective nylon sleeve; available in optional colors; durable for long service life and reliable cable protection Connectors: Zinc or aluminum alloy metal shell for a sleek, high-end HDMI cable design Contacts: Gold-plated contacts ensure superior signal transfer and long-term performance Available versions and lengths: Supports 4K resolution up to 40 meters (1–40m options); supports 3D up to 100 meters (1–100m options); multiple lengths available for various applications