AuviPal 3-in-1 Micro USB Ethernet Adapter, OTG Hub with 2 USB Ports and 1 RJ45 Port for Fire TV Stick, Raspberry Pi Zero, Google Chromecast Ultra, and TiVo Stream 4K - Black

OTG USB works with Firestick 4K Max....without issues.(After using a singular hub version for awhile bought from Amazon I bought this multi Port OTG Hub to expand different functionality which this review is very much like with a few changes but covers all the bases. My changes to my original review will be noted in these brackets)It just adds to the awesomeness of the (FS4M) Firestick 4K Max, sure the FS4M has limited storage (it would be great to have expanded storage options) but this little device helps with that. Rather than load files into the FS4M limited space, easily run/open them on the FS4M using this USB OTG hub. Simple load up your files onto a formatted FAT32 USB (I use a SanDisk): video, pictures. Connect the USB OTG hub to the FS4M power connector inlet, connect the FS4M power cord into the USB hub inlet (you'll then have power to the hub and FS4M), insert the USB into the OTG hub, use an app like Xplore on the FS4M, a file viewer - there are many, to view/run/open your files.(As well as using a USB thumb drive for extra storage, I've used a mini keyboard with a mouse track pad on it. It works well specially for typing long strings of text, the trackpad mouse only shows up in some apps but keyboard control keys for navigation work well all over. I've also heard about but haven't tested yet, a USB ethernet female connector that can be connected to this hub - keep in mind - ethernet cable speed is always better and runs faster than Wi-Fi - like Gigabit faster - if you have a Gigabit port on your router - imagine clean your FS4M would run. If I get one and test/use it I'll update this review with my results)I hope you found this helpful, this is my opinion of the device and mine alone - I'm not paid for this review, if you purchase and mirror my usage you'll have the same experience. Enjoy, Marc.

This device is perfect for a traveling photographer. It allows me to make backup copies of my photos (and view the jpg versions on a nicer, larger screen) without having to travel with a laptop. I can use my Android tablet or even my Android phone, instead.This very small and light USB hub plugs into my 2017 Samsung Galaxy Tab S2 Android tablet. I connect a USB flash drive and either a cable to my camera's USB-out connection or a tiny SD card reader with the card from my camera. Then I use a file manager app (the default Samsung Files app works fine, as does the default Android Files app on my phone - which I actually prefer to the Google Files app) to select all the files I want to duplicate and copy them to the flash drive.File transfer is not fast (200 files totaling 2.79 GB took 5 minutes and 50 seconds to copy, or about 8 MB/s [64 Megabits per second]). I think the slowness may be partially the fault of the 512 Gb Sandisk Ultra Flair USB 3.0 flash drive I used, since it slows down drastically on large write operations even when connected to a PC, apparently to prevent overheating. Since it starts fast and then slows down, a larger transfer might produce an even slower average transfer speed. But the bottom line is that for one or two transfers of, say, 2 to 10 Gb per day, even this slow speed is good enough. I can do something else for five, ten, or even twenty minutes while a day's worth of photos copy themselves.In my 2.79 GB test, none of the devices got more than just barely noticeably warm.With a small adapter (micro-USB to USB-C; it MUST be "OTG" [USB "On The Go"] compliant), I can plug this hub into my Pixel 2 phone and transfer files in the same way. So if my tablet dies or I want to travel *really* light, I don't even really need the tablet. Managing files on the small screen of a phone is doable but not as convenient.Note that you CANNOT get a USB-C hub and use an adapter to connect it to a micro-USB tablet or phone, because apparently no one sells a USB-C to micro-USB adapter that is USB "OTG" compliant. So if you want to use a hub with devices that have both types of connectors, you must get a micro-USB hub and an OTG compliant adapter to convert it to USB-C when needed. You apparently can't go the other way. Given this limitation, there are not many competitors to the AuviPal hub reviewed here.You can plug a charger into the hub, as well. I believe that will provide power to the attached USB devices, but not concurrently to the tablet or phone. I have not tried this feature and do not anticipate needing it.Advice: be sure to "eject" or "dismount" the flash drive and camera or SD card before disconnecting. This tells the tablet or phone to finish writing any data or file allocation table entries to the flash drive or SD card. I have already found that just yanking out the flash drive when the file transfer appears to be done can cause it to produce error messages the next time it is plugged into a PC, although interestingly, I did not actually lose any data. The Samsung and Android Files apps make the "eject" or "dismount" command hard to find. On the phone, you can see it by tapping the notification bar on the Android home screen, then the "more" link on the notification for each USB device. I never did find the "eject" function on the Google Files app.Physically, the hub seems reasonably well made, but nothing special. I had been attracted to some USB-C hubs with solid aluminum housings, but as noted above, a micro-USB hub is more flexible. This one is plastic, not premium but probably fine.

This is a super-niche use-case, but if you have an old Lenovo Yoga Book (the thin one with the Intel Atom processor, Halo keyboard), then this could be useful!I wish this would charge it while within Windows, but at least it gives me more USB-A ports. Interestingly enough, I learned that if you leave it connected to power, it will charge while the tiny laptop is shut down!I finished my task (moving stuff from USB flash drive to the device) and shut it down while leaving it connected at about 70% battery. After a few seconds, I saw the charging light flashing next to the plugged in microUSB port. I left it there for a few hours and came back to see the light was no longer flashing.I turned on the Yoga Book and it was at 100% battery! Nice.I don't use this little guy often, because it's slow and a bit inconvenient with no other expansion ports, but this little hub really helps. I suppose the best option would be the official Lenovo T-hub they used to sell, but that's hard to find at a reasonable price.

My second product from this company. Works great!

Funciona correctamente