The Multi-IO Expander for the NerdSEQ adds three different MIDI Ports, two I2C Ports and some additional edit possibilities to the NerdSEQ. IO Ports: USB Host > Connect any Midi Class Compliant gear like a Launchpad, Midi Keyboard and more USB Device > Connect to your Computer and get a new XOR Midi Device for direct Computer NerdSEQ MIDI communication TRS-A Midi > Classic Midi connection using a stereo jack cable (adapters for DIN Midi Connectors included) 2 x I2C Ports > Each can be either leader or follower. Connect your I2C capable module (eg 16n, ER301, distingEX, Just Friends and others) and access 100 virtual patch-cables. Both ports are located on the backside of the module but one port is also additionally located on the front (to connect an external 16n faderbox for example). Additional Buttons and an encoder Knob -> New edit modes, dial in notes and more! Manual Please note: the NerdSEQ is required to use this module. The Multi-IO includes a power buscable, 12 pin ribbon cable for the midi connection and 2 TRS-A to DIN Midi connectors. Additional Du-Pont Cables for I2C are available for separate purchase. Product Specs Item Number: 30838 Make: XOR Electronics Model: Multi-IO Expander - Black Condition: Brand New Finish: Black Categories: keyboards-and-synths ⇒ eurorack Function: Expander Made In: Netherlands MPN: XOR-MULTIOB Modular Grid: Eurorack ⓘ + Dimensions*: 6 HP 40 mm deep Power*: 20 mA +12V 0 mA -12V 0 mA 5V * User contributed details