Masione&trade; 7 Inch Tablets Keyboard Cover Case for Samsung Galaxy Tab 3 8.0 & Samsung Galaxy Tab Pro,Google Nexus 7 2012,Google Nexus 7 2013 (7 USB TO Mini/Micro USB) + W/ OTG Adapter + Stylus Pen (Purple) Suitable for Samsung Galaxy Tab 3 8.0 and most 7" Tablet which comes with Android 2.3, Android 4.0 and or Windows system! USB Port: USB 2.0;Material: PU + PC;Full Size USB Interface;Dimension: 220 x 130 x 12(Max);Keyboard Size: 200 x 78mm ;Adjustable Width: 108~130mm With stand on the back to support your tablet.Made from durable synthetic leather and PC,can put it on desk or in hand Comes with an Built-In INTERGRATED KEYBOARD, a USB to Micro USB ADAPTER, FREE Capacitive STYLUS for easy operation of your Tablet PC device The protective case is made of high quality PU leather to well protect your tablet from drops, bumps, dust, scratches and other damages Please note : it does NOT work for Samsung Galaxy Tab 2 7.0, Samsung Galaxy Tab 3 7.0, Samsung Galaxy Tab 4 7.0,Amazon Kindles, Nook, or Motorola Xoom,Blackberry Playbook and Archos Arnova. Pls make sure it support OTG before you purchase this item.