Topic: Now that usb sticks are being sold by sidehack here is a new usb hub thread. - page 2. (Read 47310 times)

lol...it's that new dead short model that made it through QC.

Wow. Never heard of that before. They've obviously upgraded them since I bought mine 

so...i bought an arctic USB fan that likes to blow up USB ports it gets plugged into. I haven't pulled the hub apart yet to inspect, but ports D and 1 are now dead. Are the board components easily sourced so I can fix my hub?

Looks more like a board than hub. I'm more interested in what it actually is.

Hi! Check our R&D Here is Big One Usb Hub as a one module from our convector-miner product, but not about that now.

So the one module can still heat the room without noise! Also it's our test 33 Clarke-chips USB sticker.

https://i110.fastpic.ru/big/2019/0518/e9/8c73a6947f8a9a7a8356831131259fe9.jpg

Both hubs are designed to handle 6 USB Mining Sticks, the additional ports are for small addons (Raspberry Pi, USB Fan) that require less than 2 Amps of power.
Both the black and the aluminum hub group the ports into 4 sections, ports 6 and 7 share 6Amps, 3 and 4 share 6 amps, 5 and 2 share 6 amps. Port 1 and D(on the aluminum) are on a 2Amp max fuse. the big difference is that port D(aluminum only) is not connected to the hub itself, so it can only provide power, similar to a wall brick for cellphone charging.

Theoretically, you could run 7 sticks in both hubs, but the 7th miner would have to be run at lower speeds to keep it under the amp limit.

Maybe a stupid question.

But you can't use 8-port for mining? EDIT: Never mind, I misunderstood what you wrote.

How many NewPAC can the hub on the left handle?

https://youtu.be/SBCw4_XgouA


Thnx u sir.

try clearing your com port settings:

https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/how-do-i-delete-the-unused-com-ports-in-windows-7/4bb72733-1be0-4168-9ba5-68dcb72d31d9

see if the hub works after that, or simply try the hub with another usb port or comp

A stronger fan than my setup with the plugables. I have all 6 running back in the plugables now

Tried turning off the hub for several minutes, then turning back on(including unplugging), and switching the power supply on and off several times. I noticed that the sticks plugged into 2,5 would flash red as they went off where the other 4 would go immediately off from green.

I was increasing the speed in steps due to 3 of the sticks being 2pacs "seconds". As stated, all 6 are working again on the old hubs.

And for cooling you used - what

On the black hub, I believe the 6/7 regulator also feeds the hub controller. If something went wrong with that, it'd drop out.

Not sure what would have gone wrong that a power-cycle wouldn't fix, especially at only 175.

Ran 6x 2pacs off PSU 6 pin (evga 430, 80+) for about 2 hours and now it won't detect anything.

I was running them at 175 which should be 9.72a max.

The lights are all solid green on the 2pacs, but they aren't being seen by windows. There's a little red light under 7 and 4.

I can feel the 2pacs in 3,4, and 5 are all very warm to the touch. 7 is mildly warm. 2 and 6 are pretty much cold. Didn't mess with 1.

Tried another PSU and USB wire, no luck.

Just watch your power draw, the barrel plug on the USB is only rated at 8A.

Just got the NEW EDITION Gekkoscience 8-Port USB hub (perfect for mining)!
here is a side by side comparison with the older model:



it has a new metallic casing this time, slightly slimmer and a more sleek look and feel. Ports 1-7 are for data transfer + charge, the last port 8 is charge only
diagram on the back shows the max power draw for the groups of usb ports on the hub, very useful and removes the guess work

All you need is this hub and one of these 12V 10A power bricks for $15 $12 (au/eu/uk/usa plugs available) and you are good to go                
You won't find a more reliable usb hub and power supply.

No worries, don't trouble yourself with tests. Upper 80% really great for these little AC/DC blocks,  no good way of getting better than that without spending nearly $100 on a real ATX PSU anyhow.

Just put in order for 3, looking forward to seeing how far I can take the Acasis USB hub and my 5 NewPacs.  

I dont have any of the units set up on a test bed right now but they are DOE Level VI rated at 88% efficient. They have less than 1mA of power leakage so most of the efficiency is lost as heat but at 88%, unless you buy a meanwell or a titanium PSU, you wont get better quality. When I get to the shop tonight, Ill see if i can run a few tests for you.  Sidehack may also have a quick answer, we sent him a few test samples when we brought them into the states.

Review of Acasis USB 3.0 Hub
Photo of the setup https://i.imgur.com/1czvtRM.jpg

Example Link https://www.amazon.com/Splitter-Adapter-Individual-Switches-Computer/dp/B07BNBLXTS/

Products I have
7 Ports US Version (w/3A PSU) purchased from Amazon
2x 10 Ports Version (w/4A PSU) purchased from AliExpress and imported from China.

Pros & Vendor Claims

• Individual port power button - Good for turning on/off your RPI or hard reboot 2PAC
• 2.1Amps 5V per port (Vendor claimed) and I have tested this to be relatively true
• Hub recognized as a smart USB power hub by uhubctl utility for software power reset.  Have NOT tested this.
• Work with RPI 3 flawlessly thus far running 12+ hours

Cons
The supplied PSU is pretty weak, the 7 ports came with a 12v@3A and 10 ports 12v@4A.  I am currently running the pictured hub with my Anker 5A PSU pulling 49watts at the wall measure by Kill A Watt.

Summary
I like these as they have individual power buttons and worked with the RPI and has uhubctl support.  Uhubctl allows you to software cycle a logical hub and port to hard power cycle a zombied stick even though I have not had a chance to test it out since the NewPac has been good enough to not zombied out.  Supplied PSU has better efficiency than my Anker PSU even though there are weak and would only be enough to power 3 sticks.

As you can see from the photo, my sticks has modified heatsinks (40x40x20mm and 60x60x10mm).  The heatsink in horizontal fin position worked out very well, I can hold my finger on any of them permanently with the fan blowing and not get burnt, though the one with slightly less airflow in the front is a bit warmer than the other.  The other 3 are lukewarm.  The downside to these mods is obviously the GS hub is not really an option for me as I would only be able to use 4 ports at best.  That's why I used this hub with a single linear row of USB ports instead.

Testing condition is 4x NewPac running at 450Mhz.
https://i.imgur.com/nvVfTkR.png

Will await more $ available to get the 7A PSU from 419Mining and see how many sticks I can run.  I have 5 NewPac, a 2Pac.  And yes, the spacing does allow me to fit 6 in there even with the 20mm heatsinks.

Caveat found during testing with RPI
There is some sort of flaw in the setup when plugging in too many NewPacs would trigger a kernel panic on Pi Zero W, though there can be multiple causes there from power feedback into the Zero, to too many adapters to get it hooked up.  Since running 4 x NewPac with a Pi 3B it has operated 1 day 14 hours plus at of this posting without kernel panic.  Previously I was able to get runtime up to 3 days continuously with a connected Pi Zero W and 2x NewPac,  but when plugging in 4x NewPac the Zero W kernel went crazy after a few minutes to 15 minutes max.  The crashes are observed with multiple known good Zero using multiple known good 32GB Samsung EVO Select cards.  The problem appeared more with the Zero than the hub, though I do not have further time nor equipment to test conclusively and have given up using Zeros as controllers.

@419Mining,

I'm interested in that power supply,  do you know what the power efficiency is for it under decent load like 5-6 Amps?

I'm getting pretty terrible efficiency with the blocks I have, USB meter reporting ~9watts and the thing's pulling 12+ at the wall for ~80%.

Careful on the Amazon power bricks, most are cheap junk in a pretty case. We sell one that we tore down to the bits to verify it was good quality. Has a 3 year warranty and passed all the certification test. You will pay more but you get what you pay for, or you get a fire, its that simple.
https://www.419mining.com/shop/power-supply/12v-7amp-power-supply-for-gekkoscience-products/

We are planning on getting 10A bricks, but its not cheap bringing in a full case of units to sell one or two. The other option like MineFarmBuy said, a good quality PSU if you dont mind the aesthetics/noise of it.