Mercury V2 with LP50 linear PSU. This is the evolution from Pi2AES with adjustable i2s, internal storage capability and other upgrades. It is possible to add 4TB+ of internal SSD storage and play all files locally while also adding streaming services and NAS functionality. Also includes FusionDSP which can load EQ profiles for any headphone. Preconfigured with Volumio this unit is plug and play and features wifi hotspot capability, just connect and control. All outputs are up simultaneously for easy gear comparison and enjoyment. This is a significant jump over USB.