I'm using this adapter for PS4 and PS5 controllers on PS3 and it's amazing! : r/PS3
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DR1TECH Shock Pad Controller for PS4 / PS3 Wireless Gaming Joystick Design NEXT-GEN Compatible with PS5/PC/IOS Touch Pad and Double Vibration (Black) [Amazon Exclusive] : Amazon.de: PC & Video Games
How to Connect/Use PS5 Controller On A PS3 Bluetooth & Wired - YouTube
AKNES Bluetooth Wireless Controller Adapter for PS4/Switch/Switch OLED/Switch Lit/PC/PS3 Platform, Compatible with PS5 Controller/PS4/Switch Pro/Xbox One S/Xbox Elite 2 Controller: Amazon.de: PC & Video Games
PS5 DualSense Controller Works Perfectly On PS3 (But Not PS4)
USB Wireless Bluetooth Adapter Empfänger für ps5/ps4/ps3/Nintendo Switch/Lite/Xbox elite Pro/PC Gamepad Controller Transmiter - AliExpress
Sony PS5 DualSense Wireless Controller - Nova Pink - Walmart.com
Wireless Controller Konverter USB Empfänger für PS3/PS4/PS5 Für box diejenigen/Schalter/Schalter lite/n-S Pro /PC Wireless Adapter - AliExpress
Wireless BT Game-Controller Gamepad für PS4 Konsole con RGB Licht Touchpad zurück Taste Unterstützung 3D Joystick für PS3 PS5 Switch PC | Fruugo DE
DualSense Wireless-Controller - Cosmic Red [PlayStation 5] : Amazon.de: Games
PS5 DualSense: Controller funktioniert mit der PS3, aber nicht PS4
How To Use Your PS5 Controller On Your PlayStation 3! (BEST WAY TO PLAY) - YouTube