Check out this site to go to Square's compatibility list for all the accessories that Square can connect with, and the Square system that each is compatible with. Next, this site will tell you all about the Register system and how to set it up, including how to connect all of the accessories. The good news is that your barcode scanner is on the list, so it will work with the Register. The not-so-good news is that your receipt printer is not on the list. However, so many Star printers are compatible that I'd go ahead and hook it up to test it out - it may work even though it's not on the list. If it does work, the cash drawer will probably work also, since it's printer-driven.
I personally use the Register system in my business and I found it extremely easy to set up and use. I hope you find it the same way. Good luck!
Judy T Shumway
