Topic: Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 8. (Read 47313 times)

Thanks for this. Have the same hub.
Question: Any luck chaining them together? I have 4 2pac's and have been trying to get the 4th to keep running but no matter what powered hub I try it runs for a few hours then stops.

I ask because I am using a RPi W with one USB port.

Thanks

Given that you can only use 3 ports, do you still need 60W or is the 25W unit acceptable.  I would be using the Pluggable 7 port hub to run a couple 2PAC sticks and I can order 2 Pluggable 25W units for the price of the 60W unit.

CreativeReef

Went ahead and ordered the 10 port model as it is the only one really suitable for running the sticks 250Mhz-275Mhz by providing up to 2.1A per port.
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

Ordered through Amazon today so should see it in about a month
https://www.amazon.com/gp/product/B01K4MZQJ8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I am using the Plugable 60W USB 2.0 hub and it does work fairly well as long as you know its quirks.
Quick guide to follow:

• Stated before but 3 sticks is the max. I don't care what speed you run them at, stock or over clocked 3 is the max.
• Must run on ports 1,3,5 or 2,4,6 and a fan can go into slot 7 but it draws from port 5,6,7 combo. I run my fans with a separate supply.
• Max frequency you can run the sticks at and not have it go zombie or get a USB error is 237.50Mhz and that may be pushing it as each hub may differ slightly  (225 Mhz might be more stable for you).
• If you lose power for any reason you must manually push the power button to turn it back on. Use a small UPS to keep it alive if you plan to run unattended.
• Set voltage to the lowest setting .69 - .70 across the ASIC voltage and you shouldn't get any hardware errors
• 237.50Mhz should get you between 72Ghs - 76Ghs
• Supplied power brick is reliable and only gets warm not hot
• Over all price point is great
• I ran 3 sticks at 250Mhz for a while but eventually one stick goes zombie or you get a USB error. Might be 30 minutes might be 6 hours but it happens every time at that frequency. You also have to up the ASIC voltage to .70-.71 to get no hardware errors.

If you are good with all of that I would recommend getting them.

How to measure the ASIC voltage see here
https://bitcointalksearch.org/topic/m.17678108

I agree with avulusionist, the plugable 60W 2.0 hub is by far the best option IMO.  its 29.99 on Amazon, a lot cheaper option than some of these other hubs + offers more power.

we have a bunch of 3A 20A 40A usb hubs just in from Sipolar now available:

https://www.eyeboot.com/sipolar-16-port-usb-hub.html
https://www.eyeboot.com/sipolar-20-port-usb-hub.html
https://www.eyeboot.com/sipolar-10-port-usb-hub.html

Special offer for first 500 pieces
Will be posting screenshots soon  

I found this hub on Ebay while looking for the famed SuperBug.
https://www.ebay.com/p/60w-Multi-7port-USB-Charger-12a-Rapid-Charging-Station-Desktop-Travel-Hub-iPhone/9012536138?iid=322670493147&_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D48420%26meid%3Df9129ae088754d37a3cc3c0b065490f8%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D232634766486%26itm%3D322670493147&_trksid=p2047675.c100005.m1851

Claims 5V input -60 Watts / 12 Amps 7 ports

If it's true, would be a good power supply, or y-cable mod but kind of pricey.

I went with the plugable 7 port 60W and run 3 at 225MHz and an arctic breeze fan with no problem.

Here's a simple little documentation of my setups.

https://www.amazon.com/photos/share/SCgYi97ESptqChXcE2HGQltCIz6AVj2wqDo88FbKR0f
This one is a single 2pac running 225Hz on an Amazon 4 port USB powered hub and a simple 5v fan. It's pretty much rock solid and throws almost no hardware errors. Anything above 225Hz won't start up. Seems like that is the maximum power the hub can provide. At $16, it's a pretty good power source. It's all connected to a mid-2009 MacBook Pro running cgminer.
http://a.co/bsDqq3V

https://www.amazon.com/photos/share/HAuMqFj9F6HrL2IkzzJsHAzD60JMULvtKqNYAgn2pOu
This one is more complex. I have a Plugable 7 port USB2 hub running 3 2pacs running at 200Hz and an Arctic fan. Occasionally one or two devices will zombie out, but it runs well for a day or two. I also have a 5v fan pointed at the top 2pac to keep it cool. All is connected to an older miniPC running Ubuntu 16.04 and cgminer. I've found that if I try to push the miners to 225Hz, two of the three fail to start. I have plans to split out power to an ATX power supply and try to push the freq above 200Hz.

That's it for now.
The Nerdy Type

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(Moderator's note: This post was edited by frodocooper to remove inline image tags.)

Both ATX PS are 38A on the 5v rail


Yes, just the 24 pin socket, however that could easily be jumped and wired straight into my 75 amp Astron (adjustable) PS .... Don't get carried away - I am not planning on doing that. hahaha.

I am still deciding exactly what I am going to do with these things when they get here. I just bought an L3+ this weekend and I could either run 14 per board (which leaves plenty of headroom) and play the lottery with those or run them with the L3+ pool which would give me about 630 mhs +/- or become a scalp-er on eBay and make all sorts of money.

Maybe I could sell one Blok Erupter 48 Port Hub, 14 ML2's, and an ATX PS all together in a bundle. If one sells, do the other one too.

Aha! Thanks for finding that (2.1A shared). I looked for it briefly, but couldn't find it right away. Of course they buried it in the description paragraphs, rather than showing it in the tech specs. So, it wouldn't really work as I thought if the 2pacs were overclocked. Shrug.

I did something similar with a single 2.1A charger and a Y cable and it worked just fine.  My only concern with your setup is whether the power supply can supply 2.1A to BOTH ports at the same time.

The description says:
"Two USB ports (2.1 Amp shared)"

Or you get a 5V PSU and wire it to an ATX jack. Two of my test stands are set up like that.

don't use the 50 amp  find a 35 amp  


and what are you going to power it with?


it looks like it has a 24 pin  jack  and nothing else.

almost no atx  psu  provivdes    40 amps at 5 volts .

So with a 50 amp fuse  you can kill the atx.

Show me an atx better then 40 amps of 5v

most are 25 or 30 amps see below

I got an ad for surge protectors/USB chargers and had a thought.

I have four 2pacs.

If I got four USB 3 Y cables, two of these power blocks, and any old el cheapo USB 2 hub, I should be in good shape, right?
Power blocks:
http://a.co/3uJgw5y

I could connect the 2pacs to the female end of the Y, connect the power side of the Y cable to the power blocks, and have data sent through the USB 2 hub through the data side of the Y.

It could work, right? From what I read, each of the two USB ports on the power block supplies 2.1A, which should be enough to power a 2pac at around 225-250Hz at the right voltage.

Thanks.

I have a question about the Blue Block Erupter 49 port Hubs - The description on the website and eBay say:

"This is the most up to date version (V3) of the popular USB 2.0 hub, it has new improvements such as a built in 70A fuse. It is capable of supplying 0.5 - 1 amp per port. "

I have two of them and and they both came with 50 amp fuses installed (blade type replaceable).

If you take 50 amps and divide the 49 ports then it comes out to right around the 1 amp per port as they describe. However if these are the "most up to date version (V3)" and is designed for a 70 amp fuse then that would come out to nearly 1.5 amps per port.

I do not plan on filling the entire 49 ports per USB hub.

Main question is - is this blue block erupter 49 port hub limited by the chipset so that even replacing the 50 amp fuse with a 70 amp will make no difference or possibly did they just ship them with 50 amp fuses that they have in stock, and are actually capable of the 70 amp total.

Don't have experience but if you read the Q&A's the first one states:

"Only one of the ports is 3A, the others are 0.5A ports. Be aware that the full capacity is 3.5A so if you have a device that truly pulls 3A in the high power port the other ports will have diminished capacity."

4 ports / 3.5 = 1.14 max as I see it.

Does anyone have experience with this hub?

https://www.bestbuy.com/site/insignia-4-port-usb-3-0-hub-black/5631038.p?skuId=5631038

Spotted it last night browsing though Best Buy while waiting for a movie to start. The package claims 3.6A per port. And the price is right on par with Sipolar and other manufacturers making high-power-output USB data hubs.

Wanting to run 5 2pacs on something like the following. Anyone else got one ?

https://www.aliexpress.com/item/QICENT-Aluminum-USB-3-0-Powered-HUB-7-Port-BC-1-2-Charging-HUB-Splitter-with/32831430292.html?spm=2114.search0104.3.129.edx0f3&ws_ab_test=searchweb0_0,searchweb201602_3_10152_10065_5000015_10151_10344_10068_10345_10342_10547_10343_51102_10340_10341_10548_5130015_10609_10541_10084_10083_10307_5870020_5080015_10312_10059_10313_10314_10534_100031_10604_10103_10605_10594_5060015_10142_10107,searchweb201603_1,ppcSwitch_2&algo_expid=e7b5a990-8f41-437b-819c-6d5644410a52-17&algo_pvid=e7b5a990-8f41-437b-819c-6d5644410a52&rmStoreLevelAB=5

Hi,
Thanks for the info here about hubs for Gekkoscience sticks. I have read through this hub topic and the 2PAC topic as thorough as possible. I'm not an electrical engineer so please excuse me If I write nonsense.

I would like to experiment with some stick miners and I have some questions about USB Hubs. The newest one in the bundle is 2PAC (from Bitshopper de). The other ones are older (RedFury style etc.). The plan is to connect them all to 1 USB Power Hub.

I'm located in Europe so the options for buying a good USB Hub are limited (unless you want to pay some serious import taxes). I have narrowed it down to 2 products:
  1. Plugable USB 2.0 7-Port High Speed Charging Hub 60W https://www.amazon.com/dp/B00L2LK164/
  2. Anker 60W 3 PowerIQ Hub 7-Port USB 3.0 https://www.amazon.com/Anker-PowerIQ-Charging-Macbook-Surface/dp/B00VDVCQ84/

This topic already contains plenty of info about the Plugable Hub, thanks for that.

The Anker hub specifications:

• It is a USB3 hub.
• 12V 5A AC Power Supply.
• Provides power -simultaneously- to max. 3 ports up to 2.1A, and 0.9A for all other ports.

The hub will be connected to a custom low-power Mini-ITX Linux Server which I use for various purposes, with an ASRock H110 Skylake motherboard and a Pentium G4500 cpu and 16GB of memory. The box is powered-up 24x7.

I plan to connect 2-3 2PAC's (not overclocked) to the USB Hub and fill up the other USB ports on the hub with older sticks and place a 120mm fan alongside the hub.

The older sticks are all < 0.9A.

The hub (USB3) does not have to work with a Raspberry Pi.


I have some specific questions about the Anker hub.

Q1: Is someone using this hub, do u recommend it?

Q2: Do you think the hub can handle this setup (2-3 2PAC's and 4-5 older sticks)?

Q3: Are the specs of this USB3 Hub (2.1A on max 3 ports simultaneously) also valid if you hook up a USB2 device such as the 2PAC?

Q4: Are the specs the same if I connect the USB hub to an USB2 connector on the Server motherboard (opposed to a USB3 connector)?

Thanks.

***UPDATE#1*** The three 2.1A ports of the Anker 60W are charge-only so they do NOT support data transfer. This means that this Anker hub is not suitable for the stickminers. I will go with the Plugable USB.
***UPDATE#2*** The USB Hub Plugable USB2.0 7-Port 60W arrived today and it is working fine. Thanks for the info in this thread

I've been using the Sipolar 20 port to run 9 2Pacs @ 200Mhz





This is the hub:
https://www.amazon.com/Sipolar-Industrial-Charger-Refurbish-Cellphone/dp/B01KPOEX9O

(I got it cheaper on eBay, though.)