 VPX raises this to 115 watts at the same voltage, or up to 384 watts at 12 volts or 768 watts at 48 volts.The specification of 6U VPX calls for computer cooling via a conduction-cooled envelope compliant with the IEEE standard IEEE-1101.2, which is compatible with existing enclosures.Provision is also made for air-cooling via an IEEE 1101.1/10 form factor version.