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passive USB hub - or active needed instead?

Posted: Wed Apr 25, 2018 5:46 pm
by 1dot0
hello,
I need more USB ports to my Pi2 v1, and so I want to use a passive USB hub for WL keyboard/mouse stick, WiFi stick, and perhaps a small 2.5" USB HD or a memory stick.
Will e.g. these 2 USB hubs or similar ones assumably work for those devices to my Pi2 USB ports?

https://www.ebay.de/sch/i.html?_from=R4 ... v&_sacat=0
https://www.ebay.de/itm/Mehrfach-4x-USB ... SwhVxaDT2v

Or will I have to purchase a powered active USB port instead?

Re: passive USB hub - or active needed instead?

Posted: Wed Apr 25, 2018 6:23 pm
by k-pi
What you are looking at will give you more sockets, but won't give any more power - probaly OK with low power draw things like keyboard & mouse, but you will need more power to use a HDD.

I've used a powered USB hub for my disks - & I also manage to power a RPi3B from it along with a disk - but I sometimes get the lightening symbol give a flash when accessing the internet.

(Probably best to have self power for HDD, & use a powered hub for extras.)

Re: passive USB hub - or active needed instead?

Posted: Wed Apr 25, 2018 10:24 pm
by 1dot0
thank you, so if in principle passive hubs can be expected to work for low-current devices then I'll 1st try if that passive hub will work fine for both the WiFi and the HID stick altogether and then 2nd try if it perhaps breaks with one or the other of the additional storage drive simultaneously.
If that fails, I'll purchase an active hub.