Dell Small Business offers the Dell OptiPlex 5040 Intel Skylake Core i5 3.2GHz Small Form Factor Desktop PC (no monitor) for $769. Apply stacking coupon codes "$50OFFBIZ" and "SAVE35" to drop it to $664.07. With free shipping, that's the lowest total price we could find by $15. It features an Intel Core i5 Skylake 3.2GHz quad-core processor, 8GB RAM, 500GB 7200 rpm hard drive, DVD burner, USB 3.0, and Windows 7 Professional 64-bit (with an included license for Windows 10 Pro 64-bit.) Deal ends April 28.