Topic: Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 10. (Read 47313 times)

Ohh its a cgminer. Thanks for the link NFW. 

Oh I don't know... Maybe read the Gekkoscience 2PAC hardware thread. All you need to know about them is in the first few posts about them

Hi All,

I got now my 2 x 2pac usb from Klintay (eyeboot). Thanks

https://image.ibb.co/fPr9HF/20885028_10204007029371872_1618840630_n.jpg

My question is I have now 2 usb and 1 raspberry pi 3. What is now the best hub to use in this kind of setup?

What is the program/app should I download/run in order for it to start mining?

Thanks in advance
[newbie]

Yep, would be perfect. Cut the internal power traces near the sockets so the logic drivers part still work and pigtail each power connection out from the socket pins using say 20ga wire and tie together at the supply. That way each socket can get full power if needed and not really affect the others.

Been thinking about doing that with an Intersil monolithic regulator dev board I have. The board is about the same footprint as the Plugable hub so they would stack very nicely... Given a healthy 12-24V main supply it'll put over 50A @ 5V  Too much at work to do so just have not had the time to do the admittedly small amount of wiring needed.

As the old story goes: The cobblers children have no shoes...

If I took a switching 5V 15A PSU, I should be able to wire all the power pins on any hub (which has easy access) to get the required amperage?
That would get me the required amperage.
If I read it correctly, 250MHz draws around 2A per port (10W / 5V = 2A). I should only need 10A to power 5 2Pac rigs.

re: the Plugable hub and PM about pullin more power out.
All should see my reply which is:
Does not work. Been there, tried that. Each of the 3 internal regulators is only good for about 1.5A before the voltage out drops below the USB spec of min 4.4V. If voltage drops below that the regulator in the sticks turns off until it is reset.

Charging applications really don't care but powering a device via USB does care very much.

That exact hub and what you need to know is described by me back in Feb. here in this thread, post #42. ref https://bitcointalksearch.org/topic/m.17921042

From the specs:
It looks like you need about 14W per port to run at 300Mhz. So, a 7-port data/charging hub with 2.1A per port should be able to run at 250 MHz? 5V * 2.1A = 10.5W...
Wondering if a 70W charger/hub like this https://www.amazon.com/Plugable-Charging-Adapter-Support-Android/dp/B00L2LK164/ should be able to run at 250MHz wouldn't you think?
It does say it's a data hub, so it should work.
I don't know exactly how the power is distributed into chains inside the hub, assuming that I would need a full 10W (5V * 2.1A) per port.

nice pics! thanks for doing the review. we are starting a second giveaway for the eyeboot 2 port usb hub. details coming soon

Is this the only hub capable of running 15-19 2PAC at 2amp at the moment ?

https://www.eyeboot.com/19-port-40a-usb3-hub.html

Or is it better to use 3x 7port hub with same power output ? Like this one
http://plugable.com/products/usb3-hub7bc/

http://plugable.com/products/usb3-hub10c2/

Most pools accept shares from my Compac, 2pac and even Antminer U1s. Of course you won't make much, but it's always fun to get some dust rewards. Solo mining is by far the best way to use stick miners as it's your only (small) chance to get anything from them these days.


Also, my Eyeboot 2-port 5v3a USB Hub is here! Pics coming in later. 2Pacs not liking either the voltage I have on em or the power (300mhz), but I will still post initial results.

Pictures:






Thoughts: 2 ports are a little too close to each other (possibly allowing for only one miner to run at once). Compac + 2Pac works fine as the heatsinks face opposite directions, but 2Pac + 2Pac does not as the heatsinks are too big.




The red LED on the hub itself is a little bad in my opinion as it shines pretty much through the shell of the entire hub, but that may be because I just don't like LEDs at all

Design is good and solid plastic, and the included power adapter doesn't have an obnoxiously bright LED, unlike most Chinese power adapters I have owned. The fact that it comes with a power adapter of substantial power is good already. It is capable of powering a 2Pac at a minimum of 300mhz if you find the best position for the voltage to the ASIC. I will find the numbers for the Compac later.

(Sorry for the way-too-big first image, switched image hosts until I found the best one).

Not all sticks, I have futurebits that are daily profitable for scrypt, by 10cents or so after electricity. but upfront cost is so high on sticks that ROI will be 20years or so at current difficulty.

You almost hit the right thread, this one is for what it takes to power them.... Try GekkoScience 2Pac BM1384 Stickminer Official Support Thread for all your answers. These days stick miners are only good for Solo Lottery mining as they are too under-powered for most pools to accept.
btw: the sticks ONLY do Bitcoin -- not altcoins.













a

Oh cool, I just found out about USB mining and now there's a thread! I have some questions, though..

1. Where does one purchase USB miners?
2. What is they power and/or resources (CPU, RAM?) usage?
3. Are they worth it? I have in mind that I would like to mine altcoins, namely LTC I think.

4 2pacs will fit in this superbpag https://smile.amazon.com/Superbpag-Portable-Charger-Transfer-Samsung/dp/B013OK10YM/ref=sr_1_1?ie=UTF8&qid=1498654958&sr=8-1&keywords=superbpag

so you would need 2 hubs

others may use different hubs, but I found this one to work for me

Hello All,

Sorry newbie here. Need your advise.

For simplicity, may i ask to share your hubs that works with multiple 2Pacs or even with other USB Sticks.  If possible, kindly advise where u purchase it too. Negative and Positive remarks will definitely help to avoid failed purchase.

Example

1. USB HUB NAME -
$xx.xx -
Purchase it here.. 
CONS:
PROS:

I am looking to buy one to work with a minimum of 2 to 8 2PACs.

Thank you all in advance.

I got my 10 port from aliexpress, the data rates were included in the full product spec's when i purchased it. Look on the Sipolar web site for details.
https://www.aliexpress.com/item/Sipolar-high-quality-usb-2-0-hub-power-supply-usb-hub-10-port-usb/32705044739.html?spm=2114.13010608.0.0.mF9xrG

The amazon one in the picture also doesn't have a up port.

That is not a hub. It is a charging station. If you read the description carefully, it says as much.

awesome,reasonable price as well.thinking to buy this 10 port sipolar.

https://www.amazon.com/gp/product/B01K6NPLKE/ref=s9_acsd_hps_bw_c_x_2_w

Would anyone here share his/her experience with this USB hub?

thanks for the feedback, I have noted the issue with voltage being a bit low. will look into that