The RedKey is Firestone Audio's most compact and affordable 24Bit USB to S/PDIF (RCA Coaxial Digital Audio) Converter. The Firestone Audio RedKey plugs into a free USB slot on your PC and outputs clean digital audio via a coaxial S/PDIF output to be fed into your DAC or other Coaxial digital accepting devices. The RedKey Works without drivers on any Mac, Windows PC and Linux PC.

Technical Specifications

Size: High 80.15mm x Width 20.4mm x Depth 18.1mm
Support to 24bit/96kHz
USB Interface(A type) to USB Interface
System required: Windows XP/Vista/7, MAC OSX and Linux
Connectivity: USB interface (A type)
Digital output: Coaxial jack (isolation pulse transformer output)