When building electrical devices and machines, one of the many things you have to keep on hand is a stock of printed circuit boards (PCB). These complex little parts connect and support various kinds of electrical components through conductive tracts or pads etched between the components. You have the option of buying a universal PCB board or ones specifically designed for a particular device, such as a computer or a printer. Keep in mind that there are single and double-sided boards as well as multilayered ones. Therefore, you need the kind specific to your project. A PCB kit for one of these devices may come with the boards as well as the hardware to attach the components. It is a great idea for someone who is building a single product rather than producing products in bulk. People like you who use these printed circuit boards all the time would benefit most from purchasing a pack on eBay rather than buying one at a time. Stock up and get connected. It’s bound to be electric.