This is the HiFiBerry DAC+ Pro with a pair of XLR jacks. The output is fully balanced.
It is strongly recommended to mount this board into a solid metal case. Otherwise, mechanical stress while plugging/unplugging XLR connectors might damage the XLR connectors. We will offer a matching steel case in the near future.
The HiFiBerry DAC+ Pro comes with integrated dual-domain ultra-low-jitter clocks and gold-plated XLR connectors. It can be simply plugged onto your Raspberry Pi, without any soldering.