"For retailers, there's the Mobile Payment Cover, which has built-in hardware for swiping credit cards and reading barcodes, allowing you to ring up customers anywhere in the store. You can attach a hand strap for more portability or use the built-in VESA mounting holes to attach it to a Point-of-Sale docking station. The credit card stuff is all handled by VeriFone, a well-known name in credit authentication, but if you ever need support for the device you also get Dell's dedicated customer service (in partnership with VeriFone) along with tech support for the tablet and cover.
It's not all about sales, either. Dell also offers a special case for healthcare environments. The white plastic case is safe to scrub with common sanitation chemicals and then simply wipe down. All of the ports are covered and protected from various fluids and materials, and the screen cover works with latex-gloved hands."