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Powered USB Hubs<br />
A number of low-cost powered USB hubs are known to have caused problems. Members<br />
of the Raspberry Pi forums have reported low power or no power at all in some cases.<br />
The following is a list of specific Powered USB Hubs which appear to be fault-free.<br />
Please note that these do not take into account powering the Raspberry Pi from the hub,<br />
in addition to its peripherals.<br />
If you use a powered hub and PI PSU together consider powering them from the same<br />
power bar with switch, so you can turn them on simultaneously., especially if the HUB<br />
tries to feed the PI through their interconnect cable, due to the 100mA limiting fuse in the<br />
PI the PI will be partially powered which may cause problems (unwanted writes to the<br />
<strong>SD</strong> card).<br />
Working USB Hubs<br />
▪ Acme<br />
▪ USB 2.0 hub 4 port (ACME (http://www.acme.eu/en-us/product/019188) ) Based<br />
on NEC μPD720114 USB2.0 Hub Controller USB ID 0409:005a NOTE! It is<br />
bus-powered hub, but very cheap and small and works after a small modding: on<br />
usb-hub board you have 4 holes: V, D+, D- and GND. Connect GND, D+ and Dto<br />
the RasPI, and additionally connect GND and +5v from power supply to the<br />
same holes on usb-hub GND and V. Now there is common contacts: GND, D+<br />
and D- between RasPI and hub needed to work, and additional power for USB<br />
devices, connected to the hub. Tested on my RasPI.<br />
▪ Belkin<br />
▪ F4U040 4-Port Ultra-Slim Desktop hub (powered 5v, 2.6A, lsusb lists as Genesys<br />
Logic 05e3:0608)<br />
▪ F5U224 4 port powered USB hub<br />
▪ F5U231/F5U234 Hi-speed USB 2.0 Tertrahub - 4 port powered USB hub<br />
(verified.. able to power Raspberry Pi using micro USB directly from hub)<br />
▪ F5U237 7 Port powered USB 2.0 5V 3.8A (5 back port 2 top ports)<br />
▪ F5U259-ME USB 2.0 7-Port Hub (Powered, able to apply power to Raspberry Pi<br />
via micro USB from this hub at same time)<br />
▪ F5U403 USB 2.-0 4 Port Hub (Powered, suspect see F5U404 in non-working,<br />
didn't test power the <strong>RPi</strong> from hub.)<br />
▪ F5U700 USB 2.0 7-Port Hub (Powered, able to power Raspberry Pi via micro<br />
USB directly from hub)<br />
▪ F5U706ea/uk 2-in-1 Hub (USB 2.0, powered, 7-port)<br />
▪ F5U706701PerBlk 7-in-1 Hub (USB 2.0, powered 5V 2.5A , 7-port)<br />
▪ F4U039qukAPL 7 port Ultra-Slim Desktop Hub (internally two Genesys Logic<br />
05e3:0608 devices - powering <strong>RPi</strong> from port furthest away from power supply.<br />
Toshiba Stor.E 1TB must be powered from ports closest to the power supply to
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