The HDMI ™ 4K×2K Audio Inserter allows an external audio signal to be inserted into your HDMI or DVI (with an HDMI to DVI adaptor) signal path. The unit allows you to insert analog stereo or multi-channel surround sound (via the digital optical input) giving you the flexibilty to add your choice of audio to the video while extending your HDMI signal. It also has the added benefit of 4K×2K and 3D support, allowing full resolution video and eliminating the need to downscale the image.

(CPRO-11SI, )


  • Compliant with HDMI, HDCP 1.2 and DVI 1.0
  • Supports HDMI audio sampling rates up to 192 kHz
  • Supports Optical (S/PDIF) digital audio sampling rates up to 192 kHz
  • Supports analog (L/R) audio sampling rate up to 48 kHz
  • Supports selection of original HDMI audio or embedding of external Digital or Analog audio into HDMI signal pathway
  • HDMI supports high-bit-rate (HBR) audio
  • Supports maximum input and output HDMI cable lengths of up to 15 meters each at 1080p/8-bit resolution or 10 meters each at 1080p/12-bit or 4K×2K resolution
  • Supports DVI conversion with HDMI to DVI adaptor
  • Supports CEC bypass function
  • Supports 4K×2K (24/30Hz) resolution and 3D signals
1x HDMI [1x Uncompressed AV and Data]
1x TOSLINK [1x OPTICAL 2 Channel LPCM]
1x 3.5mm [1x Stereo(L/R)]
1x USB Mini-B [1x SERVICE Propriety Data]
1x HDMI [1x Uncompressed AV and Data]
85mm [W] x 87mm [D] x 34mm [H]
Net Weight

Model # CPRO-11SI
Brand Cypress
Shipping Weight 0.4400kg

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