Build quality and lock type are worth checking closely, since this is the piece of hardware that gets opened dozens of times a day for years. A metal cash drawer with a solid lock and an auto open or manual release that matches how the staff work is built for years of daily use, not just a quick unboxing test. For more detail on matching compartment layout and connection type to a specific setup, read Volcora.
Compartment count and layout should match how the business actually handles cash, not just how many bill types exist. A five compartment tray works well for a business that handles a full range of denominations and coins, while a smaller layout suits a business that mostly runs cards and only keeps a modest float. Drawer size matters too. A drawer that is too shallow gets crowded fast, and one that is too large wastes counter space.
Paper width is not just a size preference. An 80mm printer suits a typical retail counter with itemized receipts, while narrower rolls fit tighter spaces or simpler transaction types. Connection type also affects setup, since printers connect through USB, Ethernet, or a shared cable with the cash drawer, and the wrong choice here can mean an extra cable run or an incompatible port.
A kitchen display system, usually shortened to KDS, replaces the paper ticket rail that has run restaurant kitchens for decades. Instead of a cook grabbing and marking up a paper slip, orders appear on a screen mounted in the kitchen the moment they are placed at the counter or table, and the cook marks each item complete on the screen instead of crossing it out by hand.
Terminal price is only the starting point. A full working counter setup typically adds a receipt printer, a cash drawer, and often a barcode scanner, and each of those is priced separately from the terminal itself. Businesses that only budget for the terminal are usually surprised when the full setup costs more than expected once every piece is added.
A slow checkout line costs more than a few minutes of customer patience. Every extra second per transaction adds up across a full shift, and during peak hours a sluggish terminal can turn a two person line into a five person line fast. The terminal itself, not just the software running on it, is usually the reason.