The 7 Port USB 3.0 Hub Block with RGB Color Ring features individual on/off buttons for each port, allowing for precise control over connected devices. With a compact design and a 3 ft USB cord, this hub offers added convenience and flexibility for users looking to expand their computer's connectivity options. The vibrant RGB color ring adds a touch of style to the hub, making it both functional and visually appealing for various setups.(USED WITH NERDMINER V2 USB LOTTERY BITCOIN MINERS.)