Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange

Questions tagged [hub]

Hub referring to a node with multiple links, thus expanding a single port into several to allow for the connection of more devices to a host system. Relevant for different network or bus systems, e.g. ethernet, USB, SATA

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What to know about powered USB hub?

I'm a bit lost in electricity stuff, but I want an USB hub to power supply my Raspberry Pi and my hard drive. I know that there are lists of USB hubs for Raspberry Pi that works perfectly, but I want to know how can I choose a good USB hub in the…
ilazgo
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Maximum number of USB devices supported

Assuming I can solve for power (externally powered hubs) is there any maximum number of supported USB devices that the pi can handle? Large(ish) hubs 7-8 ports are relatively cheap and I am wondering if there is anything built in that would prevent…
FoamyGuy
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Can the Raspberry Pi Zero be powered by a real usb port?

I have a powered USB hub. Can I use it to power the Raspberry Pi Zero using up just one Micro USB port? Or does the power have to come from one particular port that is only used to provide power? Edit (2021-10): What i'm trying to ask is, can i use…
neuhaus
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Can't connect to 3G using Sakis3G software

I am trying to connect to a mobile network using the ZTE MF190 USB dongle on my Raspberry Pi. I already successfully established the UMTS connection directly on the Pi's USB host, but later I added a powered USB hub and moved the UMTS dongle on to…
TomiL
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Harddrive detected as 13fd:160e Initio Corporation instead of 1058:1010 Western Digital

I have the following configuration: A Raspberry Pi model B connected to a powered USB hub, with the +5V detached from it (otherwise the hub powers the Pi due to backfeed). They work fine together and I can plug in many hi-powered devices, such as…
GuySoft
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Power saving for raspberry pi2 model B

I have a raspberry pi 2 Model B and I want to disable the power to ethernet and USB hub port, I try using hub ctrl. c command, and it doesn't work. Is this happening because of the limitation of the hardware? Will this be working on Raspberry Pi 3…
Wei Lin
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How would I get more USB ports on an RPI

How would I get more usb ports on a Raspberry Pi? 2 just isn't enough. The obvious answer is a hub, however I have tried many and none work. My friend said that most hubs drive power back to the pi, which it doesn't understand. He bought a hub…
harry_p_6
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How to add usb webcam and WiFi to RPi model A without ruinning power consumption?

So I managed to diminish my RPi model A power consumption to the impressive mark of 70mA (underclock + replacing the 3v3 regulator). Low current is important because it is a mobile app (robot/car controlled by SSH). Now I want to add Webcam and…
dawid
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No devices detected + Reset

My Raspberry worked fine until last month, now it doesn't detect ANY device. I tested it with a wireless keyboard and it doesn't work. I tested it with a basic keyboard and a basic mouse and the doesn't work. All these devices worked fine since last…
luglio7
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Cheap USB powered hub to work with the pi without backfeeding

I am trying to build a 3D printer farm with the pi, and I need a large USB hub. I found this hub. But don't know how to evaluate if its any good. Has anyone tried something like this? Do you have a 7+ port hub to recommend?
GuySoft
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usb soundcard losing power

I bought this USB soundcard. I have this powered USB hub and I plugged the soundcard to the hub(the 2 usb ports in the pi are used by wifi dongle and usb hub). I changed the configs , and rebooted and the led on the soundcard lit up. amixer gave…
thekindlyone
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pi 4 won't boot with powered USB hub

I have a raspberry pi 4 with USBGear 4 port usb 3.0 hub. The USB hub is a powered type. If I boot the Pi system with the usb cable attached to the hub and without power on the hub, it all boots up just fine. However if the hub is powered and…
John
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USB3 HDD not detected in RPi with Powered USB Hub

So we got a Powered USB Hub thinking we could use the Pi for a media share, but the HDD refuses to be detected. I saw this question asked countless times on Google and Stack Exchange, but they are all old threads or the people were just making…
NaturalBornCamper
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Power USB Hub from "Mains to USB" adapter

I'm thinking of building myself a small media center using a RasPi, but 2 USB ports doesn't seem enough to me. So I will need a USB Hub. I still don't know exactly what devices will be plugged on it (right now I'm thinking a WiFi dongle, an IR…
3rgo
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Lightning bolt w/ 3.0A USB hub

I'm using a USB 7 port hub that's rated 5V at 3.0A and get a lightning bolt symbol in Raspbian. There's nothing else plugged into it. Shouldn't this work? Thanks
user1598226
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