Hardware Busters posted a review on the Thermalright TR-TGFX 550 ATX v3.1 PSU
Thermalright TR-TGFX 550 ATX v3.1 PSU Review
The Thermalright TR-TGFX 550 is an affordable SFX PSU, meeting the ATX v3.1 requirements for units without a 12+4 pin connector