API 500VPR - 10 slot rack designed to accept API standard format 5.25" x 1.5" Lunchbox modules, internally wired for pin 2 hot, comes with the API L200PS, XLR in/out, holds up to ten Series 500 modules.
Fredenstein Bento 10S- 10-slot 19" rack for 500series modules- internal 90-240 VAC powersupply +/- 16Volt/+48 Volt- simple wiring for audio module chains- every Module audio out is switchable to the next audio input...'
"Fredenstein Bento 6S- 6-slot rack for 500series moduls- internal Powersupply +/- 16Volt/+48Volt- simple wiring for audiomodulechains- every Module audioout is switchable to the next audioinput with switches on the back-..."
Morley Ebtech Hum Eliminator 2 XLR, 2-Channel Hum Eliminator with XLR-Connectors, eliminates AC-Humming and und prevents Humming Loops, grounding stays intact, passive working (no Power Supply needed), Range: 20Hz up...