api 500 slotFrom the inventors of the 500-series format, the API 500-8B lunchbox is an 8-slot, 500-series energy rack desned to just accept all API normal 5.25″ X 1.5″ modules, permitting you to confure a recording or mixing package to fit your500VPR is a lunchbox from API tailored to host up to ten 500-series modules. The rack is wired to PIN 2 hot, and comes with a dedicated tri-polar power supply (L200PS). Both inputs