Настольный блок питания с питанием от аккумулятора Maktia 18 В или блока питания ноутбука
Vitamins: DSP5005 (or similar) power supply, two banana sockets, two 4.8mm flat terminals with flat soldering tag
To allow powering by laptop power supply: flip switch, Lenovo round socket (or adjust right hole for different socket)