8 stand alone mutes, 8 channel expander to the Mute Performer.

The NO BPM Mute Expander is a 8-channel expander to the Mute Performer.

Stand alone, it can perform basic mute functions. When connected to the Mute Performer via the jumper leads on the back, it adds another 8 channels to the Mute Performer.

https://no-bpm.com/shop/p/mute-expander