Key benefits Safe, predictable power per port: each USB port includes a currentlimiting switch with a maximum output current of 1 A, protecting connected devices and the hub from overcurrent events. Mix and match devices without conflict: the VL817 controller supports combined connections of SuperSpeed (5 Gbps), Speed (480 Mbps), Full Speed (12 Mbps) and Low Speed (1.5 Mbps) devices, so modern and legacy USB devices work together on the same hub. Reliable multidevice operation: seven USB ports can be used simultaneously, allowing multiple peripherals to be connected at once without reconfiguration. Flexible external power: accepts a 12 V–24 V external power supply to provide sufficient total power to the hub and connected devices when used with an appropriate adapter or power source. What this product does and why it matters Enables speed data transfers where supported: SuperSpeedcapable devices can transfer data up to 5 Gbps through the VL817controlled hub while other devices operate at their native speeds. Protects devices and system stability: perport current limiting prevents a single device from drawing excessive current and affecting the rest of the system. Simplifies mixeddevice setups: connect USB storage, input devices, cameras, and lowerspeed peripherals at the same time without manual speed switching or compatibility concerns. Key attributes Function: 7port USB hub with perport current limiting and support for mixed USB device speeds via the VL817 controller. Compatibility: supports SuperSpeed (5 Gbps), Speed (480 Mbps), Full Speed (12 Mbps), and Low Speed (1.5 Mbps) devices concurrently. Power: external power input range 12 V–24 V to supply sufficient output when paired with a compatible power source. Performance: combined mixedspeed operation with SuperSpeed transfers up to 5 Gbps where supported; power per port limited to 1 A. Practical use scenarios Mobile workstation in vehicle or mobile lab: power the hub from a 12 V vehicle supply to connect a laptop, USB keyboard and mouse, a phone for charging or syncing, and several flash drives simultaneously. Mixed peripheral desktop setup: connect a SuperSpeed external SSD for fast file transfers while also using a webcam, keyboard, and legacy USB device without speed or compatibility conflicts. Industrial or field equipment integration: use a 24 V industrial power source to run multiple sensors, data loggers, and a USB modem at the same time, with perport current limiting to protect sensitive devices. Notes and considerations Each port is limited to a maximum output current of 1 A; evaluate device power requirements before relying on a single port for current charging. Use a compatible 12 V–24 V external power supply sized to provide adequate total current for all connected devices.