Description
The SeaSonic Focus GX-550 represents a pinnacle of power supply engineering, balancing high-density power delivery with a remarkably small footprint. Measuring just 140mm in depth, this 80 PLUS Gold certified unit provides up to 90% efficiency at 50% system load, significantly reducing heat waste and electricity costs. The fully modular cable management system allows builders to use only the necessary wires, improving airflow and aesthetics within the PC case.
This product is for:
- Compact PC Builders: The 140mm depth is perfect for Mini-ITX or small form factor (SFF) cases that require ATX power supplies.
- Silent PC Enthusiasts: The S3FC Hybrid Silent Fan Control keeps the unit completely silent at loads below 30%.
- Long-term System Owners: A 10-year manufacturer warranty provides peace of mind for multiple hardware upgrade cycles.
- High-End Gamers: Gold-plated high-current terminals ensure stable power delivery to demanding graphics cards.
- Professional Workstation Users: Reliable 80 PLUS Gold efficiency ensures stable operation during long rendering or processing tasks.
Detailed specifications:
- Model: Focus GX-550 (SE-PS-FOGX550)
- Form Factor: Intel ATX 12 V
- Efficiency Rating: 80 PLUS Gold
- Dimensions: 150 mm (W) x 140 mm (L) x 86 mm (H)
- Fan Control: S3FC (Fanless up to 30% load)
- Cable Type: Fully Modular (Flat black cables)
- Protection Features: OPP, OVP, UVP, OCP, OTP, SCP
- Warranty: 10 Years
Installing the SeaSonic Focus GX is a streamlined experience thanks to its wireless connecting structure. By replacing internal cables with a copper plate that connects the back panel and the PCB, SeaSonic reduces the chance of manual production errors and improves output power quality. During high-load gaming sessions, the fluid dynamic bearing (FDB) fan operates with minimal vibration, maintaining a low acoustic profile while effectively cooling the internal components. The gold-plated terminals further enhance conductivity, preventing power drops during transient spikes.
Compared to the previous Focus Plus series, the Focus GX improves upon internal layout and cable flexibility. While budget Bronze-rated units often use non-modular cables and lower-quality capacitors, the Focus GX utilizes 105°C Japanese electrolytic capacitors to ensure longevity. Against larger 160mm or 180mm power supplies, the GX series offers superior compatibility with modern compact cases without compromising on the 80 PLUS Gold efficiency standard.
Q&A:
- Does the SeaSonic Focus GX-550 support modern GPUs? Yes, it provides stable 12V rails and high-current terminals suitable for mid-range graphics cards.
- What is the benefit of the 140mm depth? It provides extra space for cable management in the PSU shroud, especially in cases with fixed drive cages.
- How does the Hybrid Silent Fan Control work? A physical switch on the back allows users to toggle between "S2FC" (fan always spinning) and "S3FC" (fanless mode under 30% load).
- Are the cables flat or sleeved? The Focus GX comes with flexible flat black cables that are easier to route through tight spaces.
- Is this unit compatible with older ATX motherboards? Yes, it follows the standard ATX 12V specification and includes a 20+4 pin main power connector.
