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# Configuring Colourspace Conversion for Device I/O

When you set the input or output format for a device in the Vtr keyword, you should also specify its colourspace conversion method using the <colorspace mode> parameter. The supported conversion methods depend on whether a single-link or dual-link connection is used for I/O with the device. The following table shows the colourspace conversion methods that are available for single-link and for dual-link I/O connections.

Colourspace Conversion Method | Supported for Single-Link Serial (4:2:2) I/O | Supported for Dual-Link Serial (4:4:4) I/O
--- | --- | ---
YCbCR -> RGB | Yes | No
YCbCR -> RGB + Headroom | Yes | No
No Conversion | No | Yes
No Conversion + Headroom | No | Yes