Practical Office 4 Multi-Function Keyboard CameraProduct details
Interface Type:Usb 3.0
Ports:4
Origin:Cn(origin)
Funtion:Reader
Standard:Usb 3.0
Certification:None
Length:15cm
Package:No
Plug Standard:None
Device that expands to multiple interfaces
The USB hub is divided into:
1. Active type: It can regenerate and amplify the signal on the connected network medium,which can make the connected medium length reach the maximum effective length, and it needs a power supply to work. At present, most HUBs are of this type.
2. Passive: It only acts as a connector, it can work without power supply, which is rare in the market.
3. Hybrid: You can connect multiple types of cables, such as coaxial and twisted pair.