Siglent Spd4121x 4 Ch Dc Power Supply 285 WThe Siglent SPD4121X is a 4 channel DC Linear Programmable Power Supply equipped with a 4. 3 inch TFT LCD display, friendly human machine interface, and excellent performance indicators. Real time waveform display provides engineers with an informative user interface. SPD4121X offers a total output power of 285 W with a resolution of 1 mV 1 mA. The maximum voltage and current for each channel are as follows: CH1: 15 V 1. 5 A CH2: 12 V 10 A CH3: 12 V