The API 500V is a rugged 10-slot, 3U rackmountable chassis for your modular 500 series gear. Powered by a tri-polar L200PS power supply (not included), the 500V accepts 500 series-format modules. Input and output jacks on the API-VPR are both XLRs, and the unit can hold up to 10 500 series formatted modules. Now you can customize your rig to fit your exact needs by adding the API 500V 10-slot chassis.