It works just fine even without an external type-c power supply. However, if you intend to connect external hard drives, you will need it. That is, if you plug in a device and Windows does not recognize it or an error appears, then you need to connect the type-c cable to provide extra power and voltage, which are necessary for certain devices.

Due to the reduced USB ports on my laptop, I got this. No disconnections so far. The mouse has no lag and the drive runs smoothly and without issues. It also has a port to accept external power.

My mother uses it in the office because the laptop doesn't have enough ports, so she has connected a keyboard and a mouse, and whenever she wants to transfer something to a USB stick, she plugs it in, and the laptop still has 2 free ports...cheap construction, all plastic, but it does its job for 5-6 euros

Flawless reliable and the plug on top is very convenient. I have stuck it with double-sided tape on the top of the desktop

Cheap construction... At first, it was fine but soon it started to not work well and many USBs were not recognized...

I attached 2 flash drives and 2 other devices to it, the flash drives were running at full speed for both writing and reading, the construction is extremely durable and reliable. Simply VFM!

Quality product ugreen. It does its job excellently. I have tested it with all ports covered and everything was functioning properly. However, I have not tested it with a hard drive.

I want to inform those who are looking for a Hub for Chromecast that this particular one does not work because the power does not pass through the device. Even the external power supply only provides power to the connected devices and not to the main one. I did not know this, so I made a mistake. From what I have read, it should have the PD (Power Delivery) marking to do what I wanted. As for this specific product, I have no opinion as I do not need it and have not used it, but it seems fine as a construction.

It is worth its money and works well with many devices such as USB fan, RGB keyboard, RGB mouse, and USB sticks. I use it for work on android.

Keyboard, mouse, and cooling pad permanently connected without any problems. Also, I occasionally connect an external hard drive without any issues. For the money, it seems to be a satisfactory purchase

Unfortunately, it doesn't do the job. You suspect it from the weight and the quality of construction. You confirm it in practice where if you connect more than 2 devices, some don't work, some work for a little while. By replacing it with a higher quality alternative, these problems don't exist. Bad purchase, avoid it.

Far away simply does not do its job, as soon as you plug in two USB devices, they start and freeze both.

The only problem is the length of the cable, which can be easily solved with an extension. It can work simultaneously and comfortably with all ports and has never disconnected or had any other issues.

Disappointed as after 1 month it started constantly disconnecting and reconnecting devices on 2 out of the 4 ports

Gathered cable, nice and connects to many devices!! 2 disks simultaneously with mouse and other devices without any problem!!!!!! It really worth it and more

Quite good with the external power supply for connecting two disks. Without the external power supply, the second disk would not fit in

I have been using it for several months to charge smartwatches, Bluetooth headphones, and other small items. 4 stars because the only downside is the length of its cable, but for €10 as a small USB hub, it's great

Guys, I have read so many reviews and they are all very positive, but I have an issue with it and it doesn't make good contact, and also it doesn't pass enough power, I have connected 3 Razer devices and one of the 3 ports on the front has an issue

It is very good, I have it for about a year. What I don't like is that it is very light and can easily fall, for example when I want to plug or unplug a cable, when I clean. Also, the type c port doesn't work. Other than that, it does its job and is worth the money.

The most important thing in my opinion: in the new version that I received, the external power port is USB-C and not micro! Good change, I believe!

Otherwise, on the first day now everything is fine with external power supply, it works as it should. I only found one negative for now: it is a bit light, so if you don't have the cable properly, it moves a little from its position.

I have connected a wireless mouse, an external headphone amplifier, speakers, and an external hard drive on it. Everything works PERFECTLY. I have had it for about 15 days. If anything goes wrong, I will come back.

The device is definitely good, but make sure to get it with the 1m cable, otherwise you might need an extension. Another negative thing it has is that its power supply is USB type C and the cable is not included. I would buy it again.

It does what it says and for its price, it is ideal.
I needed a USB extender and I am satisfied with this one. I have my keyboard, mouse, and camera permanently connected, and I often connect a flash drive as well. So far, I haven't encountered any issues.

Although a bit bulky, it does its job perfectly. I use it for devices such as a keyboard, mouse, and disks.

Good value for money. I would prefer it again. Also, if you have Windows 10, there is an issue with fast charging devices, but this is an operating system issue, not a device issue.

Very good product, only if you plan to use it on a desktop that is under the desk, definitely buy an extension for the cable (as well as a corresponding length micro-USB needed to connect heavier devices). The cable that comes with it (unfortunately non-removable) is very, very short. On a laptop, of course, this is not a problem.

UPDATE: I am removing 2 stars (from 4 to 2) because -probably- it caused issues with my PC's power supply. I experienced some strange shutdowns and inability to turn it back on. After advice from a friend, I looked into it more and saw that indeed some USB hubs are responsible for such symptoms. I removed it and since then the issue has not appeared again. I give 2 stars and not 0 because my assessment may be wrong. I am simply sharing my experience for you to investigate further

It has amazing speed up to 232MB/s on USB 3.2 and works perfectly hot swap. It also works fine on Linux.

I have it on my laptop, it is small with a relatively short cable, the best at this price. Ugreen quality guarantee.

I use it on PS3, PS4. I connect controllers and a steering wheel without any problem. However, if you want to connect external hard drives, then you will need extra power as explicitly stated in the manual. Recommended.

The rating corresponds to a basic function that it cannot support. When you have an external hard drive and you try to connect a second one (for double backup), it disables the first one. It's a bit annoying, especially when there are alternatives in this category that can support up to 3 drives. The cable needs to be adjusted a bit at the beginning. As for the speeds, I didn't notice any difference. The reason it was purchased is because the new macmini models have green screens and they say it's due to WD drives. So I'm running tests to see if this doesn't happen with direct connection.