Don’t cheap out on the power supply (PSU)
You should also buy a quality power supply. Get one with a high-efficiency rating and give yourself enough headroom to upgrade your build down the line. Don’t know how much power to go with? This handy Newegg calculator (PCPartPicker has its own version) can help.
Put in your system components and it will spit out a wattage number. A good rule of thumb is to go above 500W but below 1,000W, but in general, it’s better to buy a lower-capacity power supply from a reputable brand (Corsair, Seasonic, Cooler Master, EVGA, be quiet!) than a higher-capacity knockoff that might save you a few bucks. You want this thing to least for years, right?
