The AV Link 4K HDMI Digital Audio Extractor is a simple USB powered HDMI to HDMI unit that extracts digital optical and/or analogue audio from a HDMI source signal. Easy to install and operate, this handy little device is ideal for use with games consoles, LED TVs, projectors and Blu-ray players that have no optical audio or 3.5mm headphone output. Extracts digital optical (Toslink) and/or Analogue (3.5mm headphone) audio signals from a single HDMI source device. Simple plug and play installation and instant synchronisation without delay. Supports HDMI input/output resolutions up to 3840 x 2160p @ 30Hz. USB power lead supplied. Specifications: Input connections: HDMI (4K). Output connections: HDMI (4K), Optical (Toslink), 3.5mm (Stereo). Video resolution: Up to 3840 x 2160 @ 30Hz. HDCP version: 1.4. Audio output: Stereo, DSD and HD (HBR). Power (input): DC/5V (micro USB). Dimensions: 60 x 58 x 22mm. Weight: 102g.