This is our HiFiBerry DAC2 Pro with a pair of gold-plated RCA jacks. Our HiFiBerry DAC2 Pro is the successor of your popular DAC+ Pro. It comes with integrated dual-domain low-jitter clocks and gold-plated RCA connectors. It features an on-board headphone amplifier and can be upgraded with the DSP add-on module. It can be simply plugged onto your Raspberry Pi, without any soldering.