Dell Small Business offers its Dell Precision Tower 3420 Intel Kaby Lake Core i3 3.9GHz Small Form Factor Desktop PC for $549 with free shipping. That's $50 under our mention from a month ago, $313 off, and the lowest price we could find. It features an Intel Core i3-7100 3.9GHz Kaby Lake dual-core processor, 4GB RAM, 500GB 7200 rpm hard drive, and Windows 10 Pro 64-bit. Deal ends July 17.