The AlphaSmart AlphaHub ACC-AH01-HB 30 Port Hub T0679 is a green-colored hub/splitter box designed specifically for AlphaSmart products. Made in the United States, this unit is compatible with the AlphaSmart AlphaHub ACC-AH01-HB model and includes 30 ports for connecting multiple devices. It is a high-quality product from a trusted brand, allowing users to expand their computer's connectivity options.