Samsung Galaxy Tab 4 10.1" 16gb WiFi Black (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90 day warranty. Android 4.4 Kit Kat OS, 1.2 GHz quad-core Qualcomm processor 16 GB Flash Memory, 1.5 GB RAM Memory WXGA Display (1280x800 Resolution) 64GB of memory available through a microSD slot and 50GB of free Dropbox storage