Replacement Power Cord Pigtail 6FT 14/3 for Appliances & Power Tools, Ancable 14 Guage Wire 3 Prong Open End, 14AWG 15A 1875W 125V NEMA 5-15P, UL Listed

A lot of those have you take a 110/220 cord, seperate it to the three wires and wire it directly to the terminal block you see at the bottom. I have in the past seen AC cords you can buy that (predo) that for you - for your first time, I think I'd recommend that. AC power is nothing to fool around with. Take a closer look at the terminal block - a lot of times they have a pinout either directly on the pbc or in a sticker on the case where it bends over. Again, don't be scared, just be careful. Later edit - Like this one. I would recommend you also buy a set of fork or ring terminals and learn how to crimp them on. One stray strand of wire bridging to the case or alternate lead and you'll let the blue smoke out! It's also going to be something you'll run into again and again in electronics - best to learn it now. These aren't the greatest terminals or crimper, but something like this will get you started OK.