Given that all of them are all powered hubs so power won't be the issue and you have enough space to put them. How much will it impact performance, latency or other things I don't know about? Or it will straight up kill the port if there are too many hubs?
How many USB hubs can you daisy-chain to a single port and what will happen if you connect too many?
3 years ago by Xero to c/nostupidquestions
actionjbone 78 points 3 years ago
Theoretically, there's a 127 device max.
In practice, it depends on each vendor's hardware implementation.
bladerunnerspider 41 points 3 years ago
There is an LTT video on this subject if you care to look for it.
seaQueue 2 points 3 years ago
I worked around that by plugging in a usb2 extension cable that came with something I bought and placing the 2.4ghz transceiver maybe 2-3' away from the hub. Same deal with the mouse and keyboard, they need to be a reasonable distance (some # of inches) away from USB 3 signals.
fuckwit_mcbumcrumble 21 points 3 years ago
Windows will even notify you of exactly this limitation.
From the thunderbolt port on my laptop, to my dock, to my monitor, to my big ass hub was 1 too many hops. Obviously somewhere along there were some hubs that weren’t obvious to the naked eye.
Shurimal 16 points 3 years ago
Obviously somewhere along there were some hubs that weren’t obvious to the naked eye.
Probably the port on your laptop was on a hub built onto the mobo. If my understanding is right that's how USB ports usually are connected: controller->hub->ports. If you open up device manager and go to USB controllers you'll see several root hubs and hubs even when you have no external hubs or docks connected.
Hjalamanger 5 points 3 years ago
According to some other answer here you could be able to have 32 devices but some devices register as two different devices, therefore you can only have 16
SpaceNoodle 10 points 3 years ago
To rule them all
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5 hubs deep and 127 devices per usb controller (not port)
To confuse this more many usb3 or newer controllers won't handle more than 32 devices.
Now add to that most 7 port usb hubs are actually 2x 4 port hubs.
You may be starting to see why it is so hard to definitively say if a certain usb setup will work or not without testing the actual hardware.
Side note, a lot of usb devices even count as 2 devices due to hw encryption chips, like wd external hard drives.
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