Amazon's Lockers are starting to show up in 7-Elevens around the country, ready to receive your packages and keep you from chasing the mailman down the street. The big, safety deposit-style box is a clever contraption, but when one Flickr user got an accidental peek behind the curtain he found it's powered by some simple and ugly tech. We're seeing a Draytek Vigor 2830 router, a 3G stick (those two might be working together to use out-of-band communication, sending signals sent to open the right locker door), a UPS, and what looks like a control box for the locks. It's not pretty, but we're sure it's getting the job done, and that's all that really counts. Hit the source to see more photos inside Amazon's new post office.