@kalali they updated the firmware on many of their products to include MQA support, including the iOne.
https://ifi-audio.com/wp-content/uploads/data/iFi_audio_PR_Extra_Ordinary_MQA_Easter_Egg.pdf
https://ifi-audio.com/wp-content/uploads/data/iFi_audio_PR_Extra_Ordinary_MQA_Easter_Egg.pdf