Huion PenTool Micro SD Card Memory Graphics Drawing Pen Tablet (WhiteBlue) MicroSD Memory Expansion: save your art work freely. Also you can use a bigger SD memory Card (Max 64 GB) Ergonomic Designed Rechargeable Pen: light, easy to hold, auto-sleep to save energy Hand Input Resolution 5080 LPI, Report Rate 220 RPS Compatible with Corel Painter, CorelDraw, Photoshop, Adobe Illustrator, Macromedia Flash,Comic Studio, SAIInfinite Stratos, 3D MAX Autodesk MAYA, Pixologic ZBrush and so on Widely used by designer, artist, teacher, student, office people, sales guy, presenter, etc