Our HiFiBerry DAC+ comes with a single 3.5mm phone jack. It can be simply plugged onto your Raspberry Pi, without any soldering. It includes the headers to connect to the Raspberry Pi and RCA jacks and the Nylon spacer.
Note that the DAC features only a line-level output. You can directly connect active speakers. For passive speakers and headphones, you will need to use an additional amplifier.