Dell Small Business offers its 4.3-lb. Dell Latitude 3580 Intel Kaby Lake Core i3 2.4GHz 15.6" Laptop for $519 with free shipping. That's the lowest price we could find by $24. It features an Intel Core i3-7100U 2.4GHz Kaby Lake dual-core processor, 15.6" 1366x768 (720p) LED-backlit LCD, 4GB RAM, 500GB 7200 rpm hard drive, 42Whr battery, and Windows 10 Pro 64-bit. (It doesn't have an optical drive.) Deal ends July 11.