The MIDI Solutions R8 Relay Array provides 8 contact closures which can be programmed to open or close in response to MIDI events. Event types are programmable and include Note, Controller, Program Change, and System Exclusive messages (up to 20 bytes). All settings are retained even after power is removed from the rack mounted unit. Fast-read relays are used for a response time of less than 2ms. Relay contacts are rated at 0.5A. Contacts are made available via connections to the tip and sleeve of 1/4" mono phone jacks. The MIDI Solutions R8 is MIDI powered requiring no batteries or power supply to operate.