The product is an all-aluminum alloy machine, the output port is 5.5MM power interface, and the inner diameter is 2.1MM. Different voltage outputs can be customized according to customer requirements, such as 5V 2A, 12V 2A, 9V 1A, etc. Product warranty for 2 years, including 220V power cord The line is based on the Swiss STUDER power line, low-noise linear power supply with fever, with excellent wiring and good linear components, the output accuracy is very high, low ripple, and the actual hearing is better than most Class A power supplies. Required for mill installation.The PCB is a double-sided PCB board. The finished board has been welded and tested. Please indicate the required voltage and current before taking the photo. The output voltage can be selected between 5V-24V. It can provide high-precision, low-noise constant power supply for turntables, precision instruments, decoding DACs, amps, etc., with short-circuit and overload protection. How to measure the power you need? For example, if you want 5V 2A, then 5X2=10W. You can buy 15W, because you can have a certain margin. For example, if you want 12V 2A, this is 12X2=24W. You can choose a 25W transformer. Machine size: 130 deep * 52 high * 102 wide (excluding machine feet, switches, etc.) The structure of this circuit is very good, far better than the general Kameda power supply, three-terminal regulated LM317 LT1083 LT1085 series, and even more advanced than WJ power supply, it is very good that I have seen The materials used are very sophisticated, the rectifier tube is 5A Schottky rectifier, Panasonic gold-mounted capacitors, the output tube is ON tube king 15034, the adjustable resistance is American BI, and the board reference voltage regulation uses dual op amp TL072 Suitable for polishing all kinds of DACs, amps, digital turntables, XMOS and other USB interfaces, and other audio equipment power suppliesFever materials: Low-noise TALEMA or Beijing Green Rubik's Cube seal ring cow commonly used in imported audiophiles Taiwan-made copper DC output block Swiss STUDER power line architecture With output overcurrent and overload function, improve power supply safety Integrated PCB design Full manual welding of silver-containing solder Panasonic Gold Fever Electrolytic Capacitor High speed low dropout 5A rectifier diode