Fredenstein Bento 6SB, 6-Slot Rack for API 500 System Modules, Internal power supply +/-16 V / +48 V, Reduced cabling, as the audio routing can be switched from card to card on the rear panel, Intelligent voltage distribution, Energy efficient, Extremely low-noise integrated power supply, Colour: Black, Suitable 19"" rack kit: Article Nr. #341739# (not included)