Acer Iconia Tab 8 B1-810-11TV 8" Tablet Intel Atom Quad-core 1.33GHz, 1GB RAM, 16GB w/ Android OS (Certified Refurbished) This Certified Refurbished product is certified factory refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty. Operating System: Android 4.4 KitKat In-plane Switching (IPS) Technology Screen Resolution 1280 x 800 Micro USB 2.0 Ports x1