Features : Ultra-thin multimedia keyboard Scrub-based design of ultra-thin keys, soft and comfortable feel Excellent ergonomic design 10 multimedia function keys, the surface of anti-wear protective coating PCB board adopts advanced COB (Chip on Board) technology to create superior performance The bottom of the sheet metal rugged and reliable. Sturdy and durable, high-quality silicone Key percussion long life of up to 20 million times Size: 335 * 165 * 10mm Pure black design, but also highlights the IBM’s style Thin design, easy to use or carry ,more compact Compatible: Notebook , PC , Mac with USB port Windows 98/2K/XP, Windows7 or later , Mar OS