The Seasonic Focus GX line got an upgrade to meet the strict ATX v3.1 and PCIe 5.1 requirements, and in today’s review I will look at the model with 750W max power.
The Seasonic Focus GX-750 V4 ATX v3.1 is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.
Seasonic recently updated its popular Focus GX line, making it compatible with the ATX v3.1 and PCIe 5.1 standards. The line consists of three models with capacities ranging from 750W to 1000W. All have compact dimensions, with 140mm depth. Despite the small dimensions, Seasonic fit a 135mm diameter fan to keep noise output low. Seasonic also talks about the OptiSink design, which brings a new PCB layout to the Focus V4 units, aiming to increase reliability by improving heat dissipation and airflow. According to Seasonic’s claims, the latest PCB design offers an eightfold increase in heat dissipation, keeping the operating temperatures low and increasing the PSU’s reliability.
The prices of the Focus GX V4 units are the following
- Focus GX-750: $ 129.99 (USA) / 119.90€ (Europe) / $119.99 (ROW)
- Focus GX-850: $149.99 (USA) / 139.90€ (Europe) / $139.99 (ROW)
- Focus GX-1000: $189.99 (USA) / 169.90€ (Europe) / $169.99 (ROW)
- Focus GX-750 White: $139.99 (USA) / 129.90€ (Europe) / $129.99 (ROW)
- Focus GX-850 White: $159.99 (USA) / 149.90€ (Europe) / $149.99 (ROW)
- Focus GX-1000 White: $199.99 (USA) / 179.90€ (Europe) / $179.99 (ROW)
ATX v3.1 750W PSU Reviews:
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- Cooler Master GX III 750W ATX v3.0 PSU Review
- DeepCool PN750D ATX v3.1 PSU Review
- Enermax Revolution D.F.12 750W PSU Review
- FSP VITA GM 750W ATX v3.1 PSU Review
- Sharkoon Rebel P20 750W ATX v3.1 PSU Review
- Thermaltake Toughpower PF3 750W PSU Review
- Thermaltake Toughpower GF A3 750W PSU Review
- Thermaltake Toughpower GF3 ARGB 750W PSU Review
- Thermaltake Toughpower SFX 750W Gold PSU Review
- Thermaltake Toughpower GF3 750W ATX v3.0 PSU Review
- XPG Core Reactor II VE 650W PSU Review
- XPG KYBER 750W ATX v3.1 PSU Review
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- Manufacturer (OEM): Seasonic
- Max Power: 750W
- Cybenetics Efficiency: [115V] Cybenetics Gold (87-89%), [230V] Cybenetics Gold (89-91%)
- Noise: Cybenetics A- (25-30 dB[A])
- Compliance (claimed): ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 50 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 744W
- Number of 12V rails: 1
- Power 5V + 3.3v: 100W
- Power 5VSB: 15W
- Cooling: 135mm Fluid Dynamic Bearing Fan (HA13525H12F-Z)
- Semi-Passive Operation: ✓ (Selectable)
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 2x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 8x SATA (2x cables), 3x 4-pin Molex (1x cable)
- ATX Cable Length: 610mm
- EPS Cable Length: 750mm
- 12+4 pin PCIe Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 750mm
- Distance between SATA / 4-pin Molex: 150/120mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 140mm
- Weight: 1.59 kg (3.50 lb)
- Warranty: 10-years
- MSRP (excluding VAT): $130
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Power | Amps | 20 | 20 | 62 | 3 | 0.3 |
| Watts | 100 | 744 | 15 | 3.6 | ||
| Total Max. Power (W) | 750 | |||||
