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12-26-2003, 05:33 PM
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#1
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Low Bitrate
Join Date: Nov 2003
Posts: 92
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Best mountable, DC powered USB Hubs?
I have an EPIA board and it only has two USB ports and with the ever expanding number of peripherals hooked into my computer I am in serious need of some USB Hubs. Several of my devices (USB HDD, USB 802.11b adapter, etc.) take up pretty much all the power that a single USB port can supply, so hubs that get their power from the USB port are not an option. I also am running off DC, so wall-wart powered hubs are not an option. I have managed to power several peripheral devices that would ordinarily run off bricks by using the +5 and +12 volt lines of the molex connectors coming off my power supply. Both of the USB hubs I have tried require unusual voltages (7.5 volts). So, anyone have any ideas on how I can get some powered USB hubs to work in my car? I would ideally like something that can easily be mounted.
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12-27-2003, 07:44 AM
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#2
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Raw Wave
Join Date: Aug 2003
Location: Essex, England
Vehicle: Honda Prelude 2.2 VTEC / Ford Anglia 105E
Posts: 2,224
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I have a USB2 hub which IIRC said it needed 6V. I hooked it up to my 5V from the PSU, and it is working, powering a USB GPS, and a USB2 to IDE adapter for my slimline CDROM drive 
Check for some more USB hubs, there are some out there that run off 5ish volts
Garry |
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12-27-2003, 12:04 PM
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#3
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Raw Wave
Join Date: Jun 2000
Location: Nashville
Vehicle: $800 1995 Plymouth Neon
Posts: 2,649
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I bought one off newegg that use 5v, but 2.4A!
__________________
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12-27-2003, 12:14 PM
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#4
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FLAC
Join Date: Dec 2003
Location: Massachusetts, US
Vehicle: Jeep ZJ limited
Posts: 957
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off the shelf at comp USA I got a usb 2/1 that runs off of 5v DC. 1 inch square of velcro and dazam! 4 more usb ports.
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12-27-2003, 12:57 PM
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#5
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FLAC
Join Date: Jan 2002
Location: Mellansel, Sweden
Vehicle: Audi 90 -88, VW Polo CAB -81
Posts: 1,299
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12-27-2003, 01:57 PM
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#6
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Low Bitrate
Join Date: Nov 2003
Posts: 92
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Yes, I know that there must be some out there that work, but saying so doesn't help me any. If you have something that works reliably off the 5 of 12 volt lines of a molex connector, could I please get some brand/model numbers. I don't want to just go around buying USB hubs until I find one that works.
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12-27-2003, 02:26 PM
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#7
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Maximum Bitrate
Join Date: Apr 2003
Location: HOT Arizona
Vehicle: 2002 Mazda P5 (yellow!)
Posts: 832
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This is what I bought, works perfectly off my 5V line: http://cgi.ebay.com/ws/eBayISAPI.dll...tem=3054173165 . It has four hi-speed ports and is the smallest powered hub I could find for cheap. They are now 3M stuck in my glove box. Just search ebay for "Mini USB 2.0 HUB" and you'll find a lot.
I didn't know that they even made 7.5V hubs, that's is rediculous in my opinion. It must be regulated internally to 5V. |
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12-27-2003, 06:56 PM
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#8
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Constant Bitrate
Join Date: Dec 2003
Posts: 130
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Have you guys checked this out ?? Seems like a cool idea, and with a little ingenuety you'd be able to mount or modify it not to expose the guts...
http://www.siig.com/product.asp?part...20-%20Internal
it seems to take power from a floppy drive power hookup... |
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12-27-2003, 07:28 PM
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#9
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FLAC
Join Date: Dec 2003
Location: Massachusetts, US
Vehicle: Jeep ZJ limited
Posts: 957
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thanks for the link. I wouldn't be suprised if closer inspection of that board reveals it to be using just the 5v or 12v... both good for what we're talking about :-)
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12-27-2003, 11:48 PM
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#10
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Low Bitrate
Join Date: Nov 2003
Posts: 92
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I really like the looks of that one from siig, particularly that it takes a floppy connector. I think I saw one like that at Fry's once, so I will check there in the next few days.
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12-29-2003, 12:22 PM
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#11
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Constant Bitrate
Join Date: Dec 2003
Posts: 130
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If you look closely, the Picture shows the power adapter just to the left of the USB Square Uplink Connector...
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12-29-2003, 01:51 PM
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#12
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Constant Bitrate
Join Date: Dec 2003
Posts: 130
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Will this work, it sais it's powered via the USB Hub and has per port overload protection, but I wonder weather that hub would support say 4 Mobile USB2.0 DVD ROM drives... (Powered off the USB Port)  Not that I need that many but as far as power draw goes I wonder .... :scratch:
http://cgi.ebay.com/ws/eBayISAPI.dll...31495&tc=photo
Than again for under $10 ... we'll see... And there's other auctions for that price too
Last edited by RX7FDTT : 12-29-2003 at 01:55 PM.
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12-29-2003, 02:12 PM
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#13
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FLAC
Join Date: Feb 2003
Location: Brooklyn, NY
Vehicle: 2002 Jetta 1.8T
Posts: 940
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I have a GE usb hub I'm selling, it works off 5v at 2.1A.. and I hooked it up to work with a psu directly
http://www.mp3car.com/vbulletin/showthread.php?t=20169
__________________
Mine needs to be updated.
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12-29-2003, 02:24 PM
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#14
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Variable Bitrate
Join Date: Mar 2003
Location: UK
Vehicle: 2001 Celica VVTLi
Posts: 294
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Not directly related but I purchased on of these cables
http://linitx.com/shop/product_info.php/products_id/323
Its converts the mini-usb connector for the 3rd and 4th USB ports on the Epia MB into a normal MB connector. Its works a treat with the front connectors on the 3688 case I have meaning that I've now got 4 usb sockets all able to give out the full 500ma.
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