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, meaning that instead of 200%, it can deliver 150% of its max power for short periods. 

The Thermalright TR-TGFX 550 will be included in my best ATX v3.x & PCIe 5.x PSU picks article once I decide to make a 550W category.

The Thermalright TR-TGFX 550 is an affordable ATX v3.1 compliant unit without a 12+4 pin connector, so it has to follow less strict requirements, which is currently available only in the Chinese market. Thermalright informed me that they might offer it worldwide at some point, which would be ideal, but still, there are not many small form factor PSUs available at reasonable prices in today’s market. The only issue here is that with just 550W of max power, this PSU is mostly for mainstream systems, not those equipped with strong CPUs and potent GPUs.

Technical Specifications:
  • Manufacturer (OEM): SANR
  • Max Power: 550W
  • Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%) [230V] Cybenetics Gold (89-91%)
  • Noise: Cybenetics Standard++ (30-35 dB[A])
  • Compliance: ATX v3.1, EPS 2.92
  • Operating Temperature (Continuous Full Load): 0 – 50 °C
  • Alternative Low Power Mode support: Yes
  • Power 12V combined: 549.6W
  • Number of 12V rails: 1
  • Power 5V + 3.3v: 100W
  • Power 5VSB: 15W
  • Cooling: 92mm Ball Bearing Fan (D92PH-12B)
  • Semi-Passive Operation: ✓
  • Modular Design: ✓
  • High Power Connectors: 2x EPS (2x cables), 2x PCIe 6+2 pin (1x cable)
  • Peripheral Connectors: 6x SATA (2x cables), 3x 4-pin Molex (1x cable)
  • ATX Cable Length: 300mm
  • EPS Cable Length: 400mm
  • 6+2 pin PCIe Cable Length: 400mm + 120mm
  • Distance between SATA / 4-pin Molex: 120mm
  • In-cable capacitors: No
  • Dimensions (W x H x D): 125 x 63.5 x 100mm
  • Weight: 0.87 kg (1.92 lb)
  • Warranty: no info
  • Street price (excluding VAT): Only available in China at 500 RMB

Power Specifications

Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 45.8 3 0.3
Watts 100 549.6 15 3.6
Total Max. Power (W) 550
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2 thoughts on “Thermalright TR-TGFX 550 ATX v3.1 PSU Review

  1. Can you do a review of the Thermalright TP-1000/1200? There’s a frustratingly low amount of information about it. Thanks in advance.

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