The 7U Audio Jacks Board v2 is a replacement board for the Intellijel 7U Performance Cases. If you have an older audio board in your 7U case, you now have the possibility to replace it with the v2. The older audio board can be recognized by the absence of the two white pin bases (see photo). This makes it possible to connect e.g. the 1U Pedal I/O or an Intellijel Mixup directly to the 6.3mm jack connectors on the back of the case without separately available adapters.