Specifications: Controller Chip: VL817 USB 3.1 Gen1 Hub ControllerData Transfer Speeds: SuperSpeeds (5Gbps), High Speed (480Mbps), Full Speed (12Mbps), Low Speed (1.5Mbps)Ports: 7 USB Type-A portsOutput Current: Maximum 1A per portPower Input: External 12V~24V power supply, supporting high power outputDimensions: 50mm x 100mmWeight: 44g Features: 1. High-speed data transfer: Supports up to 5Gbps SuperSpeeds USB 3.1 Gen1 transmission, ensuring smooth and efficient data syncing.2. Versatile connectivity: Equipped with 7 USB ports, compatible with devices across different USB standards and speed categories simultaneously.3. Advanced power management: Each port includes an independent power limiter (1A max output), providing safe operation for connected devices.4. External power source compatibility: Designed to support external power input ranging from 12V to 24V, ensuring stable and reliable performance for multiple connected devices.5. Integrated reverse current protection: Prevents damage to the host USB system and protects against unexpected electrical backflow for safe operation. Package Included: 1 x VL817 USB 3.1 Gen1 Hub Board