The second generation Nexus 7 is a mini tablet computer co-developed by Google and Asus that runs the Android operating system. It is the third tablet in the Google Nexus series, a family of Android consumer devices marketed by Google and built by an original equipment manufacturer partner. Following the success of the original Nexus 7, a second generation of the device was released on July 26, 2013, four days earlier than the originally scheduled date due to early releases from various retailers. The tablet was the first device to ship with Android 4.3. The second iteration of the 7.0 in (180 mm) tablet, code named "Razor", has various upgrades from the previous generation, including a 1.5 GHz quad-core Snapdragon S4 Pro processor, 2 GB of memory, a 1920×1200 pixel display (323 pixels per inch; 127 px/cm), dual cameras (1.2 MP front, 5 MP rear), stereo speakers, built-in inductive Qi wireless charging, and a SlimPort (via micro USB connector) capable of full high-definition video output to an external display.