Topping D90 use 2 x AKM 4499 chips. The D90 is a highly acclaimed dac that for its asking price deliver the goods in spades. All digital inputs is available incl. the best of them - the i2S. It provide XLR and RCA output. You can choose between the 6 filters you like the most. Dimmeable display, Blue tooth 5.0 and much more. If you fancy the MQA codex the D90 offer this as well. This dac is for you who wish to upgrade your compact disc player, add a affordable musical sounding decoder to your headfi system or jusy new in this game and on a budge but want to taste some of the best versatile digital audio around. Absoluttely recommmendable. The D90 is delivered with a "el cheapo" mains cable and usb cables as well plus a remote.