# Iris Rev 2 A split keyboard with a 4x6 layout with additional 4 thumb buttons kb.py is designed to work with the nice!nano kb_converter.py is designed to work with an itsybitsy with converter board found [here](/hardware) Extensions enabled by default - [Layers](/docs/layers.md) Need more keys than switches? Use layers. - [RGB](/docs/rgb.md) Light it up - [BLE_Split](/docs/split_keyboards.md) Connects halves without wires Common Extensions - [Split](/docs/split_keyboards.md) Connects halves using a wire - [Power](/docs/power.md) Powersaving features for battery life