NEW SFX Power Supply to PS3/ATX Steel Mounting PC Adapter Plate Bracket + Screws | eBay
JONSBO ATX to SFX Brushed Aluminum PSU Backplane Power Adapter Plate (Silver) MDY-CO382
CHICIRIS Atx To Sfx Power Supply Adapter Bracket, Convenient Atx Dual Power Supply Adapter, For Atx Power Benchtop Power - Walmart.com
PwrON Compatible AC Adapter Replacement for Seymour Duncan SFX-03 Twin Tube Classic SFX-04 Mayhem SFX-11 Twin - Walmart.com
Amazon.com: Silverstone PP08 Universal SFX to ATX Power Supply Adapter Bracket, Black, SST-PP08B : Electronics
Sfx To Atx Power Supply Adapter Bracket Pp08 Sfx/sfx-l Power Supply For Atx, Micro Atx And Mini-itx Chassis. - Pc Hardware Cables & Adapters - AliExpress
SF Series™ SFX to ATX Adapter Bracket 2.0
AC Adapter Power Supply For Seymour Duncan Twin Tube pedals SFX-03 SFX-04 SFX-11 | eBay
Amazon.com: SilverStone Technology SFX to ATX Power Supply Adapter in Black PP08B-USA : Electronics
Amazon.com: DKE SFX to ATX Power Supply Adapter SFX PSU to fit ATX PS2 PSU Mounting Bracket Designed for Silverstone PC Case and Most ATX or Micro-ATX Computer Cases (Black) : Electronics
Amazon.com: Silverstone PP08 Universal SFX to ATX Power Supply Adapter Bracket, Black, SST-PP08B : Electronics
Amazon.com: SilverStone Technology SFX to ATX Power Supply Adapter in Black PP08B-USA : Electronics
Amazon.com: Silverstone PP08 Universal SFX to ATX Power Supply Adapter Bracket, Black, SST-PP08B : Electronics
PP08
TIL there's actually an SFX to ATX PSU adapter : r/Corsair