ASUS VivoTab RT TF600T 10.1-Inch 32 GB Tablet (Gray) 2012 Model (Certified Refubished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes a 90-day warranty Windows RT operating system 1.3GHz NVIDIA Tegra 3 T30 processor, 1500MHz bus speed Built-in 802.11b/g/n wireless LAN 32 GB Flash Memory, 2 GB RAM Memory, Built-in microSD Card reader for expandable storage