I used it only once, and it has been stored in almost new condition. 【Product Details】 Brand: GAOMON Connectivity Technology: USB Pressure Sensitivity: 8192 levels Features: Shortcut Keys Model Name: S620 Compatible Systems/Illustration Software: Windows 7 or later, macOS 10.12 or later, Android 6.0 or later. Compatible with major painting software such as Adobe Photoshop, Illustrator, Clip Studio, Lightroom, Sketchbook Pro, Manga Studio, Corel Painter, FireAlpaca, OpenCanvas, Painting Tools Sai2, and Krita. #gaomon #pentab #tablet