Coolmax Coolmax Technology Inc. is a leading brand of high-performance ATX power supply, external and networking solution in United States. Coolmax has achieved the greatest success in distribution channel, meeting demand from quality-conscious system builders. Coolmax has earned a reputation for building a solid and high-performance ATX power supplies, built with quality components, especially designed to offer extra-long life and provide a maximum system performance. Coolmax is extending the personal computing to a new powerful level. Coolmax is the name you can trust!