The PEL-3000A series, a single-channel, programmable D.C. electronic load with 0.01 mA current resolution and 16 A/μs current Slew Rate, is very ideal for testing SPS (Switching Power Supply) for commercial and industrial computers. For a heavy-duty device like cloud ecosystem running 24-hour nonstop operations, a stable and high-power power supply, ranging from 175 W to 1050 W, is required to maintain the normal operation of server, Hub, and the equipment of data storage and internet communications.