I'm looking for USB cables for a TF300T and see that there are USB 3.0 versions available. I didn't realize that the TF300T had a USB 3.0 port, nor can I find any info that it does. Does the TF300T benefit in any way from a USB 3.0 cable? Perhaps slightly faster USB charging? Or does it transfer data at USB 3.0 speeds?
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Is there any way to connect a USB Host adapter + charge the TF at the same time? I'd like to be able to watch videos (most of which are on my USB HDD) without having to spend hours copying them all to MicroSD just so I can charge the TF (and I use it a lot in my car (while parked, not while driving obviously) and dont want to have to dock the TF to do so (the main reason I use a tablet in the car is there is so little space between me and the steering wheel))
Possibly dissecting a Datacable so it forks the charge into 1 plug and the USB into the other? or wiring in a barrel plug to one of the USB host adapters? (I'm assuming it's not possible to just use a generic USB hub and somehow reverse the power on one of the ports to allow charging...?)
Not sure if his answers your question, but essentially, the pin layout on the cable that connects to the wall charger for the Asus Transformer matches the USB 3.0 spec.
As seen here on Amazon, you'll need a USB 3.0 cable to effectively work as an extension cable for charging via the wall-outlet.
Therefore, by the same logic, if you have a USB 3.0 port on your computer, you'll be able to make use of the extra voltage to do the same thing.
Renarudo said:
Not sure if his answers your question, but essentially, the pin layout on the cable that connects to the wall charger for the Asus Transformer matches the USB 3.0 spec.
As seen here on Amazon, you'll need a USB 3.0 cable to effectively work as an extension cable for charging via the wall-outlet.
Therefore, by the same logic, if you have a USB 3.0 port on your computer, you'll be able to make use of the extra voltage to do the same thing.
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I don't think the USB 3.0 on a computer will supply more than 5V and 900mA. Not enough to charger the TF.
You best bet is to use a USB 2.0 extension cord, take out the wires that go to pin 1 and pin 4 and connect those wires to a 12V power source.
Absolutely no need to use a USB 3.0 extension cord.
Look here: http://forum.xda-developers.com/showthread.php?t=1087321
To answer OP's question, there's only 1 USB host port on the ASUS Transformer TF101 USB Kit. I don't think that's possible.
Confirm both replies - the Amazon-linked cable does indeed allow an extension of the power delivery from a stock power adapter, but connecting to USB 3.0 port on a PC will not charge the device. Just connected it direct too, not via a hub (even though it is a 3.0 hub - didn't work on that either...)
Suspect custom wiring required, as OP has speculated - anyone?
Can EEE PAD Transformer support Full USB HOST functionality using stock connector provided by ASUS using something like below FEMALE TO FEMALE USB Adaptor ?
http://www.hkcolordigital.com/usb-2.0-a-female-to-usb-2.0-a-female-adapter.html
I know ASUS dock keyboard do have USB port and also, ASUS is selling USB adaptor for around $45, but I do not want to spend that much.
Since ASUS stock connector which is used for charging as well as data transfer from PC support USB functionality, I believe it should be easy to implement.
Any suggestion/solution ?
Thanks
No, it wouldn't work.
http://www.androidtablets.net/forum/asus-tablets/17308-usb-useful-transformer.html
I can't find pinout for ASUS charging connector, but i think it has USB-host pins in it - so you should just solder an USB-female to them in right order.
UPD:
http://www.alwaysinnovating.com/wiki/index.php/40-pin_connector
http://forum.xda-developers.com/archive/index.php/t-1056615.html
this might work. USB OTG is what we looking for
USB Adapter Coupler Type A Female to Female
I have ordered "USB Adapter Coupler Type A Female to Female" from ebay ($3 including shipping):
http://www.ebay.in/itm/120868617077?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649#ht_932wt_1143
Once it reaches to me, I'll try what is possible with it.
I received the "USB Adapter Coupler Type A Female to Female" today and tried to connect USB pen drive and as it was expected, NOTHING HAPPENED.
But, I still think it is possible. I have seen Nexus and Galaxy phones with USB host online.
I think, to be precise, it is not only Female to Female adaptor to be connected to stock connector, but it needs some power (+5v) as well. For this, I think it need USB Y Connector, as in attachment. Below is the link for reference:
http://htc-linux.org/wiki/index.php?title=Msm_Usb_Host
Now, I am thinking to open Female to Female USB connector and solder 2-wire with USB Male connector to it (I have extra USB mouse) for power (+5V & Ground) and try again.
look at last link in my previous reply. There are photos of disassembled host adapter and some schematics-pinouts. TF has USBhost, but it on different pins than usb-slave cable.
Has anyone made an OTG cable for the TFP? I don't like the chunky USB OTG connector and thought an OTG cable would be much better.
Not quite sure what you mean.
The only proper usb connector is a standard type A connector located on the keyboard, it has insufficient pins to implement OTG. The only other usb connectors are the propriety asus ones, one on the tablet and one on the keyboard, the other small connector on the tablet is HDMI output
I have the "chunky" USB OTG connector as well.. I don't think there's a cable though... I looked everywhere on the net
I don't have a dock therefore the only way I can plug a USB flash drive, Keyboard/mouse into the TFT is via the ASUS USB OTG Host adapter View attachment 1384503
I was after something a little slimmer and believe a OTG cable would be ideal - Refer to picture for an example of what I'm referring to View attachment 1384504
Micro USB OTG cables can be used with many phones and tablets sporting a micro USB connector. The TFP obviously doesn't have a micro USB connector therefore I was hoping someone knew how to make an ASUS 40 pin to female Type-A plug which replicates the ASUS USB OTG Host adapter.
Has anyone pulled apart the ASUS USB OTG host apapter? What's inside it?
Hey guys. There are several articles and videos around on how to make your own OTG cable. It essentially involves shorting a single pin. I have no idea if it'll work with a TFP, but I'm going to give it a shot today or tomorrow if I get some time. My plan is to use the normal TFP USB cable, but plug it into a female/female USB gender changer that has been modified to short the pin. I'm almost positive that it'll work on my SGS3, and I don't see why it wouldn't also work for my TFP. I'll report back.
Nevermind. I now see that the TFP USB end has five pins, so they won't match up with the 4-pin female USB port. Oh well...
TFP and OTG
Does anyone know if the OTG will support a USB hub?
gtan2589 said:
Does anyone know if the OTG will support a USB hub?
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The TFP doesn't have OTG, it's a regular USB host.
So yea, it will support a hub because it's a standard USB device class, with its driver already part of the kernel.
Hi i use asus usb ethernet adapter with a asus usb converter. When i m connected to the internet via cable, it isnt possible to plug in a usb drive. İf i use a usb hub, can i use both usb drive and ethernet adapter at the same time ?
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gravis502 said:
Hi i use asus usb ethernet adapter with a asus usb converter. When i m connected to the internet via cable, it isnt possible to plug in a usb drive. İf i use a usb hub, can i use both usb drive and ethernet adapter at the same time ?
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
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Depends on the total power consumption of the adapter and USB drive. If it exceeds a certain limit, you may need an alternative source of power for the USB hub. In theory it would work though.
by the way i wont use the other usb portexcessively. what i want to do is unlup the ethernet adapter when i need toplug in usb pendrive for small copy operations. i will buy a hub and test it
I wonder if the USB port on the dock can handle a hub, since it does have a source of external power
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It should be able to handle a hub. Normal USB 2.0 only supplies 500mA but since its the battery it might go in the 700mA-1A so either way, you should be able to use the USB hub no sweat. Try it out, see if both work at the same time. I would not try to plug something else like a USB HDD or DVD drive but, you know, its ok. Also, keep in mind that the two are fighting for bandwidth of the USB 2 so it will essentially slow down both processes.
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---------- Post added at 08:24 AM ---------- Previous post was at 08:20 AM ----------
Also, even if you are charging the TF300T dock, I don't think the USB power is passing directly. I think the battery is being charged by the wall, then the battery "charges" the USB devices. So if you are plugged in to the wall or not does not matter. If the devices draw too much power you might need to power the hub itself directly from a wall adapter (or hint hind other battery)
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as long as the linux kernel understands and has drivers for the hub you'll be fine (which should be most of them). Like others have said, if you go over the power limits of the tablet's USB output you'll need a powered hub. Since it sounds like you're using this statically in one place you should be fine keeping a powered hub near your ethernet cable. If it's just a USB thumb drive and not a hard drive or optical disk drive you should be fine with an unpowered hub.
GrippenTech said:
It should be able to handle a hub. Normal USB 2.0 only supplies 500mA but since its the battery it might go in the 700mA-1A so either way, you should be able to use the USB hub no sweat. Try it out, see if both work at the same time. I would not try to plug something else like a USB HDD or DVD drive but, you know, its ok. Also, keep in mind that the two are fighting for bandwidth of the USB 2 so it will essentially slow down both processes.
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
---------- Post added at 08:24 AM ---------- Previous post was at 08:20 AM ----------
Also, even if you are charging the TF300T dock, I don't think the USB power is passing directly. I think the battery is being charged by the wall, then the battery "charges" the USB devices. So if you are plugged in to the wall or not does not matter. If the devices draw too much power you might need to power the hub itself directly from a wall adapter (or hint hind other battery)
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
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I think so, I was able to plug a USB Keyboard into the dock port, then plug other things (mice, etc) into the keyboard's USB ports.
I currently use a USB 2.0 flash drive with a USB 2.0 OTG adapter.
The transfer speeds can be a little slow.
I see there are USB 3.0 OTG adapters on eBay such as this one: http://m.ebay.co.uk/itm/311139411713
If I hook a USB 3.0 flash drive to this adapter, will I be able to transfer files at USB 3.0 speeds?
vinokirk said:
I currently use a USB 2.0 flash drive with a USB 2.0 OTG adapter.
The transfer speeds can be a little slow.
I see there are USB 3.0 OTG adapters on eBay such as this one: http://m.ebay.co.uk/itm/311139411713
If I hook a USB 3.0 flash drive to this adapter, will I be able to transfer files at USB 3.0 speeds?
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From my testing 3.0 speeds were only seen from pc accessing phones internal storage. Read write of external sd didn't change and usb host mode I am 99.9% sure only supports 2.0.
Btw, I use the 3.0 otg connector just because it fits more snug, totally prefer it over 2.0 micro cable even though the pins go unused.