Downgrading with PSgrade Dongle - PS3 Developer wiki
Amazon.com: RCM Jig for Switch, RCM Clip Short Connector for N-Switch Joycon RCM Jig Tool for NS Recovery Mode (Black) : Video Games
PS3 / E3 / PS3JIG Downgrade - R-Massive
USB Power Supply Charger Cable Cord Compatible with Sony PlayStation 3 PS3 Controller, 1.8m Long
PS3Jig - PS3 Factory/Service Mode "Jig" Dongle for Sony PSP
Wireless Game Controller For PS3 Gamepad For Double Shock 3 Bluetooth-4.0 Joystick For USB PC Controller For PS3 Joypad - AliExpress
For Ps1 Ps2 Playstation 2 Joypad Gamepad To Ps3 Pc USB Controller Adapter Z3W3 | eBay
PS3Jig - PS3 Factory/Service Mode "Jig" Dongle for Sony PSP
Wireless Game Controller For PS3 Gamepad For Double Shock 3 Bluetooth-4.0 Joystick For USB PC Controller For PS3 Joypad - AliExpress
For Ps1 Ps2 Playstation 2 Joypad Gamepad To Ps3 Pc USB Controller Adapter Z3W3 | eBay
Amazon.com: Titan One Device [Programmable Scripts, Macros, Mods, Remapping] Crossover Gaming Adapter and Converter for Playstation 4 PS3 Xbox One 360, Compatible with Nintendo Switch and More : Video Games
PCB Fixture Repair Jig Motherboard Clamp Support for BGA Reworking Station PS3 XBOX 40G 80G 120G
PlayStation / PS3 USB Modchip (PS Jailbreak Hack) Runs Backup Games [Video] | Redmond Pie
Wireless Game Controller For PS3 Gamepad For Double Shock 3 Bluetooth-4.0 Joystick For USB PC Controller For PS3 Joypad - AliExpress
PS3 JIG / DONGLE Downgrader Downgrade USB AVR For FACTORY SERVICE MODE E3 | eBay
PS3 JIG / DONGLE Downgrader Downgrade USB AVR For FACTORY SERVICE MODE E3 | eBay
1A Home Wall Charger Adapter w/ USB Mini B Cable for MP3 MP4 Cell Phone PS3