Chassis Enclosures At Atrenne, we are dedicated to providing high-quality, customizable solutions for your electronic packaging needs. Our chassis enclosures are no exception. Filters 5 Slot 3U OpenVPX / SOSA ATR Chassis 5 Slot OpenVPX / SOSA ATR Chassis 6 Slot OpenVPX / SOSA ATR Chassis Promethean Series SFF Solution 760-92 Small Form Factor Mini-ITX and PCIe Enclosure Find out how we can help you Contact us