It doesn't work on any of the 4 TVs I tried, I'm giving two stars because maybe I'm doing something wrong even though I doubt it, it's not rocket science.
I also watched some videos on yt but nothing.
In general, it's not a sturdy component, but I just wanted it to do its job..

It does its job just fine for 3 consecutive years now - without any problems, even though it has endured hundreds of power outages from the Public Power Corporation

mostly plug and play, but the quality is very bad, it's not as good as a proper hdmi to AV card but works fine

It does the job for which it was made, but with a huge degradation of sound and image. Its use is only applicable in emergency situations.

Powerful converter. It does its job as described. It has been working continuously for years and although it is something relatively simple, it is worth it and more.

Unfortunately, it does not support all PAL standards, resulting in it not functioning as it should on 1 of the 3 TVs I tried it on. While it works normally on the other 2, on the TV I wanted to use it with, it outputs a greyscale/black and white image.

I have had it for 3 days. Easy to connect. I have no complaints so far; for the money, it does very well what it was made to do.

I have taken almost all of their converters from the same brand and they really do well what they say.

It is very important to emphasize that it is a matter of luck which version of the adapter you will get. There are different versions, identical on the outside but with differences inside. In my case, it worked even without power supply but the result was not good. As soon as I gave it power with the provided cable, the image cleared completely. So, given the extremely low price, it is highly recommended.

I give it 5 stars because it does what it promises for 4€. Its construction could be of better quality, but at this price, who can complain.

I used it to connect an HDMI recorder to an analog modulator from IKUSI. It worked perfectly fine.

It works, but the image is very poor and it has vertical lines. Whether I plug it in or not, it's exactly the same.

I use it to have a picture on an old CRT from a TV BOX with HDMI output. The image and sound quality is very good, although it is not HD due to the television. The only negative, and maybe it's not the device's fault, is that I need to close and reopen the device a second time every time I unplug it from the socket in order to have sound.

I connected it to my laptop using the HDMI input and from the RCA audio output to my Sony amplifier. Everything works perfectly. The sound is very good without any distortions.

It does what it promises. Picture from HDMI to an old CRT TV from 1999. 4 stars because it doesn't have a power supply socket that it needs. Also, the power cable intended for the socket is very fragile. On the first use, I accidentally stretched it and it almost broke. Luckily, I had a spare. Pay attention to these things for those interested.

It performs decently what it promises. Of course, there are quite a few cables since it also needs power from the USB, but it solves the problem.

I use it to connect the Xiaomi Mi Box 4 to a TV that doesn't have HDMI and it works without any problems.

I must say that in order for it to work, it needed to be connected to a USB port. Connection from a PS5 to a CRT television.

I don't know if it does what it promises because I wanted avi to hdmi and not the other way around. It is easy to use. However, you have to be careful not to get confused (because obviously it appears in the search for avi to hdmi and if you look quickly at the cost and dimensions of the titles on the products, you end up realizing it after you have opened it and try it)... :-)

Generic cheap plastic box.
Although the cardboard box has a brand name, one can understand that it is a cheap construction from those sold by the kilo from China. Otherwise, it's okay.

It plays directly and without extra power supply on old Sony CRT with a source being a terrestrial DVB-T2 decoder. In 1-2 seconds, it displays colored bars and then the image appears. In all resolutions of the decoder up to 1080p. The colors are a bit dull though. The sound is okay.

With a source being an old Nokia mobile with an HDMI port, it gives a normal signal.

With a source being a Sony Bluray, tested in all resolutions, the signal with the colored bars flickers and the image never appears.
As you can understand, I'm not going to connect power to the USB port on good equipment for testing just for fun.

Attention, for transferring audio from a smart TV, HDMI ARC to RCA for an amplifier DOES NOT WORK. 5 euros wasted.

It does its job, but the resolution it displays is relatively poor considering that it is an old television signal. The build quality is quite poor, but it is worth its money if someone needs it

I put it on an old television I had to connect the xiaomi tv box on top of it.
It works perfectly. If anything changes, I will update in due time.

It is as it says so I will refer to the USB. Don't worry that you will need to find a USB port to work, it works without! The temperature it reaches during operation is moderate. Enjoy your viewing!

I use it for transferring image and sound from a device with HDMI output to a device with RCA input. Excellent performance.

First watch the video to see that buying it is a gamble... letters... because there are 3 versions of the same product and you will see why it works for some and not for others... No... and then bet... And for God's sake, when you connect it, don't power it with anything... only the HDMI... because it will burn... https://m.youtube.com/watch?v=4BKSVcaxnjU

A very good, reliable, and affordable solution without compromising quality, especially in this price range.

I connected a TV box to an old television. The connection was successful, it transfers sound and image normally. In my case, the result is not very nice, but this is not the product's fault, but the TV box's fault. So, anyone who wants to try something similar should keep in mind the proper settings of the TV box in order to have a nice result.

Excellent and very cheap! I turned an "ancient" CRT television into a "smart" TV!!! The brand new but abandoned SONY 21" came to life thanks to the android TV box, which was connected on top. You will also need a USB power adapter 5 Volt 0.5 A (and above). It only comes with the mini USB male to USB male (type A) cable.

Very good product for its price. Connected without any problem to an old projector with an RCA input. The deviation in image quality is minimal.