Model: 4‑Port USB 3.0 Hub (Model 303)

• Host Interface: USB 3.0 Type‑A upstream (1×) 

• Downstream Ports: 4 × USB 3.0 Type‑A

• Data Transfer Rate: Up to 5 Gbps (USB 3.0 SuperSpeed) 

• LED Indicator: Blue power/status LED 

• Power Supply: DC 5 V jack (external power input)

• Compatibility: Backward compatible with USB 2.0 devices 

• Features: Slim size form‑factor; fuse protection for connected devices 

• Supported OS: Windows, macOS, Linux (plug‑and‑play) 

• Typical Applications: Expand one USB port into four high‑speed ports for peripherals, flash drives, HDDs, etc.