Dell Small Business offers its Dell Precision Tower 3000 Series 3420 Intel Kaby Lake Core i3 3.9GHz Small Form Factor Desktop PC for $509 with free shipping. That's $90 under our September mention, $363 off, and an all-time low for this computer. It features an Intel Core i3-7100 3.9GHz Kaby Lake dual-core processor, 4GB RAM, 500GB 7200 rpm hard drive, USB 3.0, HDMI, DisplayPort, and Windows 10 Professional 64-bit.