TOPPING D50 III DAC 2x ES9039Q2M XMOS XU316 Bluetooth 5.1 LDAC 32bit 768kHz DSD512 Black - reviews - There are 3 reviews.

Very good DAC , BUT .....!
The USB A to C cable that comes with it is only good for powering the davice , not for data transfer . If used for data , Windows 10 will not recognize the device ! Use another USB cable for both data and power and then it will work . Also , the default setting for the output terminals is TRS , not RCA . If you use RCA cables to connect to your amplifier , change this setting . This information is not provided in the manual and I think that is a big shortcoming . It took me quite some time and pain to figure this all out . Sound is perfect (once you get it running...)

Parfait
Acheté pour alimenter un ampli casque Lake People. Il remplit parfaitement son rôle, le son est neutre, transparent et plein d'énergie. La fonction EQ est idéal pour égaliser un casque.
En points négatifs : alimentation non fournie et l'application pour le paramétrage de l'égaliseur n'est disponible que sur PC.

Has DAC mode and pre-mode
Great DAC (look at audioscience review of it).

Has a DAC mode (to ensure max volume if you have a source managing audio level). Which is what I needed.