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[SOLVED] - did some research and found many other hubs' power adapters only supply 3A. Close / delete / do your magic, mods.

Hi all,

I have a question about a power adapter for a powered USB hub.

The hub has 7 ports that can draw up to 500ma each. I lost the original power supply that came with it, and I'm wondering if I can use a 3.0amp one to replace it.
I'm thinking since each port has a .5amp max and there's 7 ports + cable from the computer (assuming the computer can provide at least .5amps itself), then I should be fine with a 3.0amp power supply.

Is this OK? The hub came with a 3.5amp adapter, and I don't understand why it would need a 500ma overhead if there are technically only 6 ports drawing "extra" power - 1 out of the 7 can obviously be powered straight from the PC. I really would like to use it again since I found this 3.0amp adapter but I need a confirmation that it's safe and will (in theory) be able to power all 7 ports under full load.
Edited by railfan844 - 7/24/12 at 11:25pm
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The Butthurt Box
(21 items)
 
   
CPUMotherboardGraphicsGraphics
Intel Core i5 2500K P67 Professional AMD Radeon HD 6950 unlock NVIDIA GeForce GTX 460 2gb 
RAMRAMHard DriveHard Drive
G.Skill Ripjaws G.Skill Ripjaws Intel X25-V Seagate Barracuda 
Hard DriveOptical DriveOSMonitor
WD Goflex USB 3.0 24x DVD R/W DL Win7 Ultermate 64 Acer 20in 1600x900 
MonitorMonitorMonitorKeyboard
Compaq 20in 1600x900 17in Dell 1280x1024 19in Gateway 1280x1024 Razer Blackwidow mech w/ cherry MX blues 
PowerCaseMouseAudio
Kingwin LZ-750 HAF 932 + sound activated lights Logitech G500 Rosewill USB headset 
CPUMotherboardGraphicsRAM
Pentium 4 3.2ghz w/ HT HP Intel IGP 4gb Mushkin DDR2 
Hard DriveOSPowerCase
80gb sata WinXP Pro HP OEM HP Small form factor 
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Reply