The QED Optical Audio Cable is an optical audio cable featuring a PMMA acrylic glass optical fibre with a graded refractive index. The fibre cladding is made of fluorinated polymer, while the TOS connectors are 24-karat gold-plated and feature integrated grips.

• Type: Toslink optical audio cable
• Length: 3 m
• Connector A: TOS male
• Connector B: TOS male
• Connector plating: 24-karat gold
• Optical fibre material: PMMA acrylic glass
• Refractive index: Graded
• Cladding material: Fluorinated polymer
• Attenuation: < 0.15 dB/m at 650 nm
• Numerical aperture: 0.5
• Minimum bend radius: 9 mm
• Colour: Black