📎 AI Summary:
Airlane1979 noticed that their Toshiba laptop, which has three physical USB ports (two USB 2.0 and one USB 3.0), shows seven USB ports in the USBview utility after troubleshooting. They are curious about the discrepancy. Neemobeer explains that while the physical ports are three, the USB technology supports up to 127 devices through daisy chaining via hubs, which accounts for the higher number displayed. Overall, the discussion clarifies that the multiple USB ports shown include internal hubs and virtual connections, not just the physical ports.
Airlane1979

Airlane1979

Well-Known Member
Joined
Apr 5, 2018
Messages
5
Thread Author #1
While troubleshooting a misbehaving USB port on my Toshiba Satellite Windows 10 laptop, I installed the USBview utility for the first time ever. The port magically came back to life but I am curious: my laptop has 3 USB ports (2 of USB2.0 ,one of USB3.0) but the USBview screen shows seven USB ports. Why is this?

An image from 'USBview shows more ports than exist. Why?'. USB device tree showing connected and unconnected devices, including a Yamaha Steinberg USB Audio.
 

Last edited by a moderator:
Solution
Neemobeer
I only see 3. The USB hubs are the physical ports. USB technology itself can allow up to 127 devices daisy chained together via USB hubs (physical).
Sort by date Sort by votes
Neemobeer

Neemobeer

Windows Forum Team
Staff member
Joined
Jul 4, 2015
Messages
8,995
#2
I only see 3. The USB hubs are the physical ports. USB technology itself can allow up to 127 devices daisy chained together via USB hubs (physical).
 

Upvote 1 Downvote
Solution
You must log in or register to reply here.