SAM4s makes many different cash registers that support bar code scanning. Some can have more UPC's then others but most can scan.
Make certain you plan for the number of UPC code you will need before you buy your new cash register. Also keep in mind that many cash register can have their memory expanded, the procedure will erase the current database of UPC codes so make sure you have a method to back up the program if you do not want to recreate the file.
Also make sure you select a barcode scanner that suits your store best. A high volume store like a c-store perhaps should look at an omni directional scanner. If you are not as high volume a single line scanner may work great for you!
If you will be managing a large UPC file you may also want to invest in polling and programming software such as PC Poll that allows you do manage your file on a PC instead of directly on the cash register.
Take a look at the SAM4s cash registers that offer bar code scanning or give us a call at 1-800-863-2274 for help selecting the right one for your business.