The Fiio E17K Alpen 2 is a high quality DAC/AMP combo that can also be used as an external soundcard.
The FiiO E17K Alpen 2 is a portable headphone amplifier and digital to analogue converter (DAC). The E17K has a built in rechargeable lithium battery and USB charger, allowing you to charge on your PC or with a USB adapter. The E17K has fewer buttons on the front than that of its predecessor the E17. The FiiO E17K has a new multi-functional wheel that responds to both turns and clicks, providing an intuitive agile control replacing many buttons from the older model.
The all-new E17K Utilises the SA 9027 USB receiver, allowing the E17K to be used as an external sound card for your computer. This supports up to 96 kHz/32bit and supporting DSD decoding (with ASIO driver and SACD plugin).