Bitcoin Forum

Hi,

I have looked through the forums and the Internet and couldn't really find a suitable USB hub that ideally won't waste too much USB ports for the U2 Antminer USB miner. While there are some USB hubs that can hold the U2's on all the ports, they usually require the U2's to have contact or have to be clocked at 1.6 Gh/s (I overclock them to 2.2 Gh/s)

I am currently eyeing this one: http://www.amazon.com/gp/product/B00BGT2AP2/ref=ox_sc_act_title_3?ie=UTF8&psc=1&smid=A1HDV7SBYVUV0I

I plan on putting the U2's on those swiveling USB ports and have a fan to cool them.

Since it has been over a month since the release of the U2 Antminer USB miner, has anyone found a suitable USB hub (preferably, USB 2.0, for RPI) for the U2's?

(Yes, I know I won't make a ROI with USB miners, it's more of a learning experience)

Thanks

The 3A psu with the one you eyeing will MAYBE have enough juice to power 8 if your lucky without a fan.  Just FYI

How can 3A power 8? Doesn't each USB miner require at least 0.5A to be powered? So, the max is 6, right?

Check here for some ideas: https://bitcointalk.org/index.php?topic=253749.0

Thanks, but I have already read that post. Very helpful, however the U2 Antminer USB has a very different form factor than the first gen Asic USB miners, so is has compatibility issues with most USB hubs.

Bump

(Anyone that can help me?  :-[)

Well, i have one of these on order:

http://www.ebuyer.com/279682-xenta-13-port-usb2-0-hub-mains-powered-n-uh1301

I'll let you know how it goes.

 ;D

Go look at the thread about usb hubs for Asicminer USBs, the same qualities apply for Antminer U1/U2

the best low cost hub is this



http://www.amazon.com/GearMo%C2%AE-Port-Power-Adapter-Cable/dp/B00BZABGWK/ref=sr_1_8?ie=UTF8&qid=1399171555&sr=8-8&keywords=gearmo


but the brick is not good enough. 

  there are brick /power solutions

http://www.gawminers.com/6-pin-pcie-to-3-x-2-1mm-barrel-tip-power-cable/ 

 this runs 3  of those hubs

2 of them runs six of those hubs   that is 60 sticks.   attach to this psu

 http://www.amazon.com/Antec-EA-550-Platinum-Power-Supply/dp/B0064LWJA8/ref=sr_1_1?s=electronics&rps=1&ie=UTF8&qid=1399171897&sr=1-1&keywords=antec+ea-550 (http://www.amazon.com/Antec-EA-550-Platinum-Power-Supply/dp/B0064LWJA8/ref=sr_1_1?s=electronics&rps=1&ie=UTF8&qid=1399171897&sr=1-1&keywords=antec+ea-550)

use 1 pcie cord to  for the set of wires you can run 60 sticks   add a few of these


http://www.amazon.com/gp/product/B0050H9A18/ref=oh_details_o04_s00_i01?ie=UTF8&psc=1


I no longer run the usb sticks but I do run  29-30 gridseeds five chip units this way.   the plat psu saves huge watts..   try 292 watts for a pc and the 30 units.


  the pc is an asrock motherboard z77 itx-e  a 240 gb crucial msata 2 samsung ramsticks a blue ray player  and an iz 3770t cpu.

 so all that and 29-30 gridseeds under 300 watts.  when I kept it pc only and bricks the watts were 353 vs 292.. so bricks suck for power.

I have 10 on two Rosewill 10 port RHB-500 and arctic breeze fans. Overclocked since day 1 24/7 for weeks. No issues. May not be the best fit, but rock solid once you disable pwr management on the USB ports. If you don't they will drop.

https://i.imgur.com/wZuo4np.jpg

I have taken a cheep chinese 10places hub and then a cheep flea market ATX power supply
cut the cable for 5v made the modifitacion to make it start
and now all run excellent with plenty of power.
This involves little minimal experience but its cheep and most powefull than any sold for 10 times more

getting the atx power supply really can boost the efficiency a lot.  power brick are under 80% more like 70% efficient .   a decent platinum is more then 90 %

With my setup 353 watts   bricks  vs 292 watts platinum psu. 

In the summer I pay 18 cents a k-watt  that is about 26 cents a day or 7.80 usd a month and I got rid of all those bricks.