Brook PS2 to PS3/PS4 Super Converter

its work so good and fast i used ps4 controller on ps3 console and its work perfect so u not need ps3 controller anymore .

works as intended, if you update the firmware it also works with the xbox one controller for both switch and ps4. Nice to have options.
Ps. If you are using XBO or wiiu pro controller on the ps4 the shortcuts for share are minus+L and for touch minus+R.

I bought this because I love the Switch Pro Controller and really wanted to use it on the PS4 as the Dualshock doesn't feel comfortable for me after awhile. Instructions were all in Japanese but it was all pretty intuitive to sync up. Just press the big red button until it flashes then hold the Sync button on your controller and you're good to go!

The converter also features Turbo and button remapping functions. I haven't tried these functions as I am happy with the default settings. Occasionally during gameplay my controller drops connection and it takes a second to resync. I don't think it's an issue with the converter though which is why I still rate it 5 stars. It could be something blocking the signal between the converter and the controller, or maybe the distance I'm sitting from the console. Either way, it happens pretty infrequently so it doesn't bother me.

I was also able to successfully connect a Dualshock controller to the Switch. There's a few things to know to get it to work, but once you change the settings it works flawlessly. First to sync the controller to the converter you need to hold the Share and PS buttons together, the lightpad should flash and then sync after awhile. Next I found you have to change under System Settings > Controllers and Sensors > Pro Controller Wired Communications and turn that option on. Then the Switch should be able to find it when you go to "Change grip/order."

First off, I'd like to say it works. The red lights are a great indicator of whether or not the controller is plugged in, most of the buttons are mapped respectively. This is where I come to my problems with the adapter. We are down 3 buttons. 2 due to the GameCube controller's design and 1 from the adaptors design. Now losing the select and one of the z buttons isn't a complete loss, but you really appreciate the start button once it's been removed. On the switch, it's now registered as the Home button. I get what they were going for, but now I can't get past the opening cutscene to Blaster Master Zero. On paper, it makes sense to make the start button a home button. However, the start button is very much in a large number of games.
Now it does work with other games on switch fine if you don't need the 3 missing buttons. I think what it's best for is experimenting on other USB compatable devices. There's bound to be creative ways to us the adaptor, but on the switch it feels hindered and that's just because of one button.
If you want to use a GameCube controller on a USB compatable device this is so far the best priced item I've seen on the market.

What I would recommend to make it better? Well I find the Turbo Button unnecessary so if that can be removed in place of a home button that would make the placement all the more fitting. If there is a way to have an extra z and add a select button through the adapter I welcome it, but I'll take the home button idea if Brook will consider it.