I just bought a used MUTEC MC-3+ USB-AES-SPDIF interface & reclocker for personal testing. Is this something you would like to review @amirm if I were to send it to you?
https://www.mutec-net.com/product_mc-3-plus-usb.php
https://www.mutec-net.com/product_mc-3-plus-usb.php