Passthrough and USB hub question......

[Loveridden]

I am interested in buying a passthrough sometime soon.....was watching a video for one I am interested in and the lady in it said that u can use an usb hub but it has to be at least 1.5 amps to work well with your passthrough. So I started searching usb hubs in google shopping. Saw plenty of 2 amp usb hubs, usually with 4 usb ports on them. However, clicking on one of them it said specifically that each usb port was 1/2 an amp (4 equals 2 amps for the whole hub). My question is do I need a usb hub where each usb port is at least 1.5 amps individually?? I have a wall 2 usb port thingy that is 1/2 amp and I plug in a usb charger and charge some of my kr808s on it just fine. (I have no idea if that is 1/2 amp per port or per the whole thing).

 

[Loveridden]

Bumping............!

 

[markfm]

Make life easy, get this: Walmart.com: iQ-Power Dual USB AC Power Adapter: iPods & MP3 Players
2A total power, $10, free shipping if you have them deliver to your closest Walmart and pick it up there, okay to use with cartos/atties down to 2.5 ohms.
I've used one for a decent length of time (passthrough on one port, cell phone charger cable on the other), given another to a friend to use with a passthrough, they're solid.

 

[Odell]

If you want to go a little bit higher end, google Targus Powered USB Hubs. I own three of these (different locations) and they work well for me.

 

[Loveridden]

Thank you both. I am looking for cheapest option. Am still wondering tho if ones with multiple ports are splitting up the ampage..

 

[markfm]

The one I linked to is 2a total, can deliver it all on one port. I have run 2.6 ohm cartos before - hot for me, but worked fine.

 

[Pamdane]

I got a rocketfish from 5 below. As long as I dont overload all the ports, its great.

 

[r77r7r]

Feel like reading? If you go down to POWER and then to SELF POWERED HUB, it explains it well.

USB hub - Wikipedia, the free encyclopedia

 

[Loveridden]

Thanks everyone!

 

[Loveridden]

From what I can tell from the wikipedia page, it looks like it is saying the highest one port can offer is 500 ma, which I believe is 1/2 amp? That is the full power. So I guess that has to be enough for the passthrough then, tho in the video the lady said you needed 1.5 amps, but guess she meant for the whole thing, not just the one port.

 

[JoeDLion188]

I would definitely go with a powered (one that comes with an AC adapter) hub. I recently connected one up and it made all the difference in the world with my pass through. Haven't killed my passthrough, the hub or the carto yet. Lord knows I've been trying!

 

[markfm]

No, she was right.
500 ma is the usb spec, but many devices can provide more, just that unless it is a dedicated usb power supply you do not know what that is.

I = V/R a 5v usb voltage, and 2.5 ohm R needs 2a.

1.5 amps is borderline, really should only be used with around a 3.3 ohm carto or atty.

The $10 part I provided a link to is appropriate to use.

 

[Loveridden]

lol thanks everyone for trying to explain to me! I guess its a bit over my head. I appreciate all the help! Definitely checking out ur link Mark!

 

[markfm]

It is a good part, inexpensive, better than risking damage.

 

[The Duke]

2.1 amp each port, will require some installation. ThinkGeek :: U-Socket USB Wallplug

 

[markfm]

Neat, though the iq is cheaper and can be used on a normal extension cord or power strip.

Wall outlets tend to be at inconvenient locations for usb charging.

(it does have a high geek factor )