PROCAB multi stageblocks are made of solid metal. In the audio recording and entertainment fields, the stageblocks with 16 or 24 XLR connectors are common but PROCAB also offers smaller versions with 8 or 12 XLR connectors and also the one bigger version with 40 XLR connectors. Every stage block comes supplied with the necessary connectors and a fitted bag. The MSB112.0 features 12 female XLR connectors.