Used demo item as new in open box

The SM11 features de-embedding or embedding audio within the HDMI signal path, allowing you to breakout up to 7.1ch audio signals. The SM11 supports full HDMI 2.0 and HDCP 2.2 with video resolutions up to and including 4K @ 60Hz 4:4:4.

SM11 HDMI Signal Manager has been designed to help solve HDMI compatibility, HDCP 2.2, clock stretching, EDID and handshaking issues that are common problems when distributing HDMI signals especially with 4K. 

Can help to solve most HDMI EDID, HDCP, compatibility and handshaking issues
Supports full HDMI 2.0 specification 4K UHD video (4K @60Hz 4:4:4)
HDCP 2.2 compliant
Supports all industry standard video resolutions including VGA-WUXGA and 480i-4K
Supports pass-through of HDMI audio formats including Dolby TrueHD, Dolby Atmos, Dolby Digital Plus and DTS-HD Master
Can be configured to work as either a HDMI audio de-embedder or audio embedder
HDMI audio de-embedded to both analogue L/R audio and coaxial digital outputs concurrently (analogue audio supports 2CH PCM only)
Supports CEC bypass (Consumer Electronics Control)
Embed analogue L/R 2ch audio input onto HDMI output
Extract audio with or without a display connected to output (SM11 acts as HDMI end-point)