9 Pole Switch Module w/ D9S Connectors.
$130.00
25 Pole Switch Module w/ D25S Connectors. Requires one RS/25-SIO-S Signal I/O board per system, priced separately.
25 Pole Switch Module w/ D25P Connectors. Requires one RS/25-SIO-P Signal I/O board per system, priced separately.
16 Module Expansion Chassis with power supply for Mesa 16 Control. Switch Modules are priced separately.
15 Pole Signal I/O w/ D15S Connector