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Topic: For those wondering about the utility of MondoHub (Read 2321 times)

legendary
Activity: 1484
Merit: 1026
In Cryptocoins I Trust
I knew this about a month ago just by looking at the power specs.  Wink


That was my initial choice. Here is another link to it with specs: http://www.thinkgeek.com/product/eecf/#tabs

Power Adapter
cUL, FCC
Input: 100 - 240 V, 50/60 Hz; 1.6A, maximum
Output: 5 V / 4 A
Cable: 1.2 m (6 ft.)

Only enough power to run 8   Cry

I dunno why there are so many threads on USB hubs for ASICMINER block Erupter USBs, it makes it hard to find all known information.

EDIT: I guess I was wrong about it only being able to run 8, since you said you got 9 working canary. I wonder where it squeezes the extra power from, that baffles me.
full member
Activity: 148
Merit: 100
is it possible to use a psu power supply or an open case power supply (like on ebay) to increase the amps and power more slots? or are the internal power cables too small gauge
legendary
Activity: 1260
Merit: 1000
Ah.. yeah unpowered units, not the BE's.  It's a decent hub as far as that goes, haven't tried powering anything off it though.

sr. member
Activity: 336
Merit: 250
Thanks for posting this.  I bought one of these for other purposes but now have quite a few usb erupters on the way. You saved me much aggravation with this post. I guess I can run a few fans off of it and use it for its original intended purpose. Providing I ever receive that gear.
legendary
Activity: 1652
Merit: 1067
Christian Antkow
I have used all 28 ports on that hub with no problem for miners. The magnets are definitely a issue though.
you must be referring to BFL units that draw power from elsewhere. For block eruptors, 4A will only power 8 or 9  <500mA  devices

 Yeah, @ only 4A it'll drive max 8 USB Erupters (9 with some stress). I have a Mondohub28 collecting dust right now that I'll be brushing off once my 18 K16's arrive.

 The Mondohub should theoretically have no problem utilizing all 28 ports hosting self-powered USB devices.
sr. member
Activity: 279
Merit: 250
Thanks for checking it out, I was bout to pull the trigger on that one.
You saved me a few bucks.
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
I have used all 28 ports on that hub with no problem for miners. The magnets are definitely a issue though.

you must be referring to BFL units that draw power from elsewhere. For block eruptors, 4A will only power 8 or 9  <500mA  devices
donator
Activity: 2352
Merit: 1060
between a rock and a block!
I have used all 28 ports on that hub with no problem for miners. The magnets are definitely a issue though.
ASICMiner USB Erupter's? or BFL miners that do not get powered by the USB port itself?
legendary
Activity: 1260
Merit: 1000
I have used all 28 ports on that hub with no problem for miners. The magnets are definitely a issue though.
newbie
Activity: 4
Merit: 0
I have also tested this hub, and it has many issues.  I think the current is limited per port to 500ma, and because this is borderline they seem to power down unpredictably.   I also was using a 12 amp power supply instead of the 4amp supply they included with almost equally poor results.  I did get to 16 sapphires for a short time, then they just shut down.  It also ran hot and eventually would have burned out at 12 amps, even though I removed it from its plastic casing for cooling reasons.
donator
Activity: 2352
Merit: 1060
between a rock and a block!
MondoHub 28-port:

so I ordered and received this: http://www.cyberguys.com/product-details/?productid=63202

after testing it, I determined that it can only handle 9 USB miners for those of you wondering...
obviously when you read the spec (it comes with a 4A PSU), it's clear that it would not have powered as many miners as there are ports.
however, being the Canary and all, I decided to test it anyways so that there's no question and others don't waste their time...
a few other observations:
- the usb ports on the edges are not well thought out... the miner's heatsink is facing downward toward the surface, so terrible with trying to get fans on it
- there are magets on the bottom, once I moved the hub around gingerly, a few fell off... not a good quality product in my opinion...
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