A VL817 based 7 port USB hub designed for reliable, multidevice USB expansion with an external 12V24V power input. It provides safe, simultaneous operation for a variety of USB devices. Key benefits and features External power for demand devices: Supports a 12V24V external power supply with sufficient power output to run multiple devices at once without overloading the host system. Seven ports for wide compatibility: 7 USB ports that support different USB specifications and speeds and can be used simultaneously, enabling expansion of legacy and modern peripherals at the same time. Perport protection: Each USB port includes a current limiting switch with a maximum output current of 1A, helping protect connected devices from overload and overcurrent. Flexible speed compatibility: VL817 supports combined connection of SuperSpeed (5Gbps), Speed (480Mbps), Full Speed (12Mbps) and Low Speed (1.5Mbps) devices, ensuring compatibility with USB 3.0, 2.0 and 1.x devices without sacrificing performance. What it does well Versatile power and expansion: The external 12V24V power input enables reliable operation when multiple devices are connected, including powerhungry drives and peripherals. Safe, scalable USB hub: With individual current limiting on each port, users can connect several devices with different power needs while reducing risk of damage or overcurrent. Broad device compatibility: The VL817 chipset allows seamless use of USB 3.0, 2.0 and 1.x devices, supporting a mix of speed and lowspeed peripherals in a single hub. Compact, practical design: Designed to complement desktop workstations, media centers, and mobile setups that require a safe and robust USB expansion. Use scenarios Vehicle or mobile setup: Connect external hard drives, dash cameras, smartphones, and other USB devices in cars or trucks that use a 12V24V power source, providing centralized charging and data access on the go. Desktop workstation expansion: Add multiple USB peripherals to a computer with a single hub, enabling simultaneous data transfer and peripheral connectivity for keyboards, mice, USB drives, card readers, and more. Media and creative workflows: Power and connect cameras, USB readers, external NVMe/SSD enclosures, and other peripherals for photo/video editing or onsite data transfer where reliable, multidevice USB access is needed. Specifications and compatibility at a glance Power input: Supports 12V24V external power supply with sufficient power output Ports: 7 USB ports, capable of simultaneous use Perport protection: Current limiting switch on each port, up to 1A per port Chipset: VL817 Speed compatibility: Supports SuperSpeed (5Gbps), Speed (480Mbps), Full Speed (12Mbps), and Low Speed (1.5Mbps) devices This product delivers practical, reliable USB expansion with robust power handling, perport protection, and broad compatibility, suitable for a range of home, office, and mobile applications.