robdobson
Posts: 2
Joined: Sat Feb 16, 2013 5:58 pm

Cheap eBay powered USB hub?

Sat Feb 16, 2013 6:01 pm

I'm planning on buying one of these:

http://www.ebay.co.uk/itm/7-PORT-USB-HU ... 1e75abad50

In order to power an external HDD with my pi.

Does anybody else use these? Are they any good? And are they safe (without modifications) for my pi?

Thankyou :)

zardoz66
Posts: 77
Joined: Wed Jan 02, 2013 1:02 am
Location: Austin TX
Contact: Website

Re: Cheap eBay powered USB hub?

Sun Feb 17, 2013 3:33 am

Zardoz
Raspberry Pi 3 | Raspbian Jessie | 32GB Samsung EVO+ | D-Link 7 port USB HUB | Sabrent CRW-EXT 6-Slot Card Reader | 64GB USB Storage. Other RPi's - 2x RPi1b, 1x Rpi1b+ 1x Rpi2b, 2x Rpi3b
Join us on IRC #raspberrypi at https://webchat.freenode.net/

User avatar
rpdom
Posts: 17170
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: Cheap eBay powered USB hub?

Sun Feb 17, 2013 6:44 am

robdobson wrote:I'm planning on buying one of these:

http://www.ebay.co.uk/itm/7-PORT-USB-HU ... 1e75abad50

In order to power an external HDD with my pi.

Does anybody else use these? Are they any good? And are they safe (without modifications) for my pi?

Thankyou :)
I've got one exactly like that. It's rubbish.

The PSU claims to give 1000mA at 5V, but the voltage drops to 3V when I try to power just my model A Pi from it!

It will try to back-power the Pi through its USB input (until I cut the track).

Two of the USB sockets didn't work at all.

I kept getting USB reset messages whenever I tried using it.

Checking inside, the soldering is appalling, the circuit board doesn't fit the case properly and the USB sockets were at all different angles.

I would not hesitate in recommending you stay well clear of these hubs. :-(

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