First of all I would like to clarify that these external sound card has only one SPDIF interface, but does not have a TOSLINK connector! Also in the product description in the manual that is faulty.
Manufacturer I have informed, but can only partly the description here on Amazon affect the reseller. My previous Mitrezensent has been punished, therefore I repeat not at this point, otherwise the product is simply outstanding!
Here are the details ...
As an external sound card with HD sound capability and excellent amplifier power to the USB HiFi Audio adapter cable is a real tip!
Even headphones to 100 ohms be sufficiently powered and the sound is excellent. To operate an adapter to Micro-USB as a DAC to compatible mobile devices, including on my Galaxy S5. So I was even able to operate my headset with 3.5 mm jack for the microphone and 3.5mm jack for headphones using the adapter on my Smartphone. Class! Otherwise a headset with 4-pin jack connection is necessary since. With the hi-fi adapter, I can now also listen to music with my HiFi headset and take calls anyway.
The external sound card is an integral part of my "docking station" for my mini-PC, the stream 7 Windows Tablet.
Just a 4-port USB hub to the Micro-USB port of your tablet device is connected, the hub with 5V supplied externally and already
the sound card, mouse, keyboard, external hard drive or any other peripherals connected.
Thanks to the sound card to the Tablet listening then also like an adult system.
From my full recommendation!