The WMD/SSF QUAD ATTEN is a passive quad attenuator in a small 4hp profile.
Although quite basic, attenuators are extremely powerful in a modular system.
They are especially useful for adjusting the depth of control voltages going into modules that lack CV attenuators.
This module could even be used outside the case, or put in a completely unpowered case with other passive modules.
Power: 0mA @ +12V / 0mA @ -12V (passive)