Rupert Neve Designs R10, 10-Fold Rack for Up to Ten 500 Modules, XLR and 6.3 mm jack input and output per channel, LED display for power consumption, VCA buses in channels 1-2, 3-4, 5-6, 7-8, 9-10 can be activated in pairs via ink jumpers, Integrated power supply 90 - 240V, Type: 19""