USB hub

A USB hub permits a single USB controller to support multiple peripherals and a peripheral to supply its own downstream ports; external hubs allow a single port to be split into multiple ports.

USB hub in a Dell KB522

Keyboards

Some keyboards provide their own USB hub, as do some monitors; this provides extra USB ports without the need for an extra box on the desk.

Keyboards that provide an integrated USB hub include:

• Das Keyboard III
• Das Keyboard 4
• Dell KB522
• HHKB Professional2
• HHKB Professional HG
• Matias Tactile Pro
• Matias Tactile Pro 2.0
• Matias Tactile Pro 3
• Matias Tactile One
• Matias Tactile Pro 4
• Matias Quiet Pro
• Matias Mini Tactile Pro
• Matias Mini Quiet Pro
• Matias Ergo Pro
• SteelSeries 7G