Hardware for computer networking apparatus, namely, bridges, hubs, switches, routers, gateways, multi-layer switches, Ethernet switches, enterprise switches, protocol converters, bridge routers; Computer network hardware and software for setting up and configuring local area networks; Network servers; computer interface cards; industrial computers; Computer devices, namely, high performance computing servers, graphics processing unit servers; Computer network peripherals and electronic devices in the nature of computer network interface devices, local area networks computer cards for connecting portable computer devices to computer networks; Computer data storage hardware, namely, disk expansion units for the purpose of mass storage network attached storage; storage area network; Multi-function general-purpose computer, Internet and network servers, namely, load balancers, web servers, mail servers, cache servers, database servers, application servers, and computing servers; Mounting racks for computer hardware; standardized and customized frame, enclosure, and rack built with centralized power supply units, batteries, uninterruptible power supply, and fan modules for mounting multiple equipment modules, namely, server modules, storage modules and switches; Computer software for use in rack servers management and computer management, namely, to control energy usage and system utilization; Downloadable computer software for use in rack servers management and computer management, namely, to control energy usage and system utilization; Recorded computer software for use in rack servers management and computer management, namely, to control energy usage and system utilization; computer firmware for updating computer software to increase the performance and efficiency of servers and other devices