Sony's adding back buttons to the PS4 controller via this official attachment
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Amazon.com: PS4 Controller Paddles, Durable PS4 Back Button Attachment Support for TURBO Burst function, Back Button Attachment/Turbo Function FPS, for PS4 controller : Video Games
Amazon.com: Sehawei PS5 Controller Back Button Attachment with Turbo Function, Back Paddles Kit with Mapping Function for PS5 Controller Model BDM-010 & BDM-020, not for PS5 BDM-030,(without Controller) : Video Games
Amazon.com: Sony Dualshock 4 Back Button Attachment Playstation 4 PS4
Amazon.com: Wireless Xbox Back Button Attachment for Xbox Series S/X Controller, Controller Paddles Strike Pack for Xbox Series S/X/XboxOne/PS4/Switch/PC, Support Turbo/Macro/Audio Jack (Standard Version) White : Video Games
Amazon.com: Controller Paddles for PS4, Paddles for PS4 Controller, Multifunction Ergonomic 10 Key Mappings Back Button Attachment for PS4 Controller : Video Games
Amazon.com: DRILI Paddles for PS4 Controller, Back Button Attachment for PS4 Controller : Video Games
DualShock 4 Back Button Attachment - PlayStation 4 (Renewed) : Video Games - Amazon.com
Amazon.com: DualShock 4 Back Button Attachment - PlayStation 4 : Video Games
Amazon.com: 【August 2021 Newly Updated Version】 PS4 Controller with 3 Programmable Back Buttons and 1 Sensitivity-Control Back Button, Game Controller Remote with Turbo/Gyro/HD Dual Vibration/Touch Panel/LED : Video Games
Amazon.com: DualShock 4 Back Button Attachment - PlayStation 4 : Video Games
Amazon.com: Sony Dualshock 4 Back Button Controller Attachment (PS4) : Video Games
Amazon.com: AOJAKI Paddles for Xbox Series S/X Controller (NOT for Xbox One S/X Controller), Back Button Attachment for Xbox Series Controller, 2 Programming Back Buttons/ Memory Function/ 3.5mm Audio Jack : Video
Sony Dualshock 4 Back Button Attachment Playstation 4 PS4 - Amazon.com
Amazon.com: Wireless Xbox Back Button Attachment for Xbox Series S/X Controller, Controller Paddles Strike Pack for Xbox Series S/X/Xbox One/PS4/Switch/PC, Motion Control/Turbo/Macro/Audio (Pro Version) Black : Video Games
Amazon.com: Nyko Trigger Back Button with Thumb Caps for PS4 Game Like A Pro - PlayStation 4 : Video Games
Amazon.com: DualShock 4 Back Button Attachment - PlayStation 4 : Video Games
Wireless Xbox Back Button Attachment for Xbox Series S/X Controller, Controller Paddles Strike Pack for Xbox Series S/X/XboxOne/PS4/Switch/PC, Support Turbo/Macro/Audio Jack (Standard Version) Black
Amazon.com: Sony Dualshock 4 Back Button Attachment Playstation 4 PS4
