Seasonic Focus SGX-750 (SSR-750SGX)
Seasonic Focus SGX-750 (SSR-750SGX)
The Seasonic Focus SGX-750 power supply powers high-performance components in computer builds with limited internal space, typically in Mini-ITX cases. It provides a stable 750W of power in a compact SFX format and meets the 80 PLUS Gold certification criteria, which confirms 90% efficiency at half load. The fully modular system of flat black cables makes them easy to organise and promotes more effective airflow inside the case. This reduces the risk of overheating and simplifies the overall assembly.
750W
Power
SFX
Format
80 PLUS Gold
Certification
Fully
Modularity
Key technologies of the Seasonic Focus SGX-750 power supply (SSR-750SGX)
- Total power output of 750W
- 80 PLUS Gold certification confirms 90% efficiency at half load
- Compact SFX format
- Fully modular cabling system with a flat profile
- Hybrid cooling mode turns off the fan at loads up to 30%
- Cooling provided by a fan with a fluid dynamic bearing
- Included adapter allows for installation in ATX cases
- Includes six types of electrical protection (OPP, OVP, UVP, OCP, OTP, SCP)
Choosing a power supply
When choosing a suitable PC power supply, the key parameter besides the format is its power output. This indicates the maximum number of Watts the power supply can continuously provide to the computer's components. It's a good idea to use an online calculator to determine the optimal power output based on your chosen components.
Power, efficiency and compact SFX format
The power supply delivers a total continuous power of 750W for modern gaming and work builds. The 80 PLUS Gold certification confirms its high operational efficiency, which reaches 90% at 50 percent load. The crucial +12V rail provides up to 744W, which is essential for the stable operation of powerful graphics cards and processors. The power supply falls into the SFX category. This format is used in small computer cases, such as Mini-ITX or HTPC systems, where a standard ATX power supply cannot physically fit.
Universal mounting with an adapter and fully modular cabling
The package includes a mounting adapter that significantly expands the power supply's compatibility. With its help, the power supply can be safely installed even in standard ATX cases, where a larger power supply unit would otherwise be necessary. This solution provides flexibility when choosing a case and can also be useful in ATX builds to free up space for better cooling or cable management. The fully modular cabling system contributes to a clean and tidy installation of components. Disconnecting unnecessary cables improves airflow in the case, reduces its resistance, and simplifies the routing of other wires.
Hybrid cooling mode and a quiet fan
The power supply uses an advanced hybrid fan control system. At low loads, specifically up to 30% of the total power, the fan remains completely off and produces no noise. Operation is completely silent in this mode, which is beneficial during normal office work or media playback. As soon as the load exceeds the set limit, the fan smoothly spins up to maintain the optimal operating temperature of the components. A fan handles the active cooling at higher loads. The use of a fluid dynamic bearing (FDB) substantially reduces friction and operating noise compared to conventional bearings. This technical solution also extends the fan's lifespan thanks to an oil film that stabilises rotation and limits wear.
Six-fold protection and easy cable organisation
The integrated system includes a comprehensive set of six types of electrical protection for safe operation. These include over power, over voltage, under voltage, and over current protection. The build is further protected by over temperature and short circuit protection. These mechanisms actively prevent damage to connected components in the event of instability in the electrical grid. This design simplifies bending and routing cables behind the motherboard or in tight spaces.
Connectors
- 1× ATX 24-pin
- 1× CPU 8-pin (4+4)
- 4× PCI-E 8-pin (6+2)
- 6× SATA 15-pin
- 3× Molex 4-pin
Package contents
- Seasonic Focus SGX-750 power supply
- SFX to ATX adapter
- Mounting screws
- User manual
- 1× ATX 24-pin
- 2× CPU 8-pin (4+4)
- 2× PCI-E 8-pin (6+2)
- 2× PCI-E Double 8-pin (6+2)
- 2× SATA 15-pin
- 1× Molex 4-pin
80 Plus certification on the European market
80 Plus certification was created to objectively evaluate the efficiency of computer power supplies. This gives users a simple and clear way to compare different models. On the European market (where 230V is used), there are six levels of 80 Plus certification with set requirements for PC power supplies. Higher energy efficiency primarily means lower energy consumption.
| PC power supply load | Efficiency at 20% load | Efficiency at 50% load | Efficiency at 100% load |
|---|---|---|---|
| 80 PLUS | 82% | 85% | 82% |
| 80 PLUS Bronze | 85% | 88% | 85% |
| 80 PLUS Silver | 87% | 90% | 87% |
| 80 PLUS Gold | 90% | 92% | 89% |
| 80 PLUS Platinum | 92% | 94% | 90% |
| 80 PLUS Titanium | 94% | 96% | 94% |
Specifications
Performance and format
Equipment
Efficiency
Connectors
Cooling system
Dimensions
| Code: | UEfsgx05 |
| Warranty: | 120 months |
| Links: | Producer's Website: |
| Manufacturer information |
Sea Sonic Europe BV, Rietveld 7, 5258 ED Berlicum, Netherlands [email protected] 
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