Dell OptiPlex 9020 Micro W8.1 Intel Quad-Core i5-4590T 2.0GHz 4GB 500GB Desktop (Certified Refurbished) This Certified Refurbished product is tested & certified by Dell work like-new. The product includes all original accessories, and is backed by a 1 year warranty. Dell OptiPlex 9020 Micro Desktop PC Microsoft Windows 8.1 64-bit pre-installed six USB 3.0 ports audio out, DisplayPort, RJ-45, optional serial +PS/2 or HDMI ports. 4th Gen Intel Core i5-4590T Quad-Core 2.0GHz CPU