Does the 80 PLUS Gold certification significantly affect the power efficiency compared to other ratings?

The product is 80 PLUS Gold Efficiency certified, which indicates a high level of power efficiency compared to lower ratings.

Can this power supply support high-end graphics cards with its PCIe 5 connectors?

Yes, this power supply is equipped with a 12V-2x6 PCIe connector, which is compliant with Intel SFX 12V4.1 specification standards, making it suitable for high-end graphics cards.

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Main image of Silverstone Extreme 550Rz Gold 80 PLUS Gold 550W SFX 12V 4.1 PCIe 5 Fully Modular SFX Power Supply

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Silverstone Extreme 550Rz Gold 80 PLUS Gold 550W SFX 12V 4.1 PCIe 5 Fully Modular SFX Power Supply

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SFX form factor for Small Form Factor (SFF) ecosystem usage
Equipped with a 12V-2x6 PCIe connector, compliant with Intel SFX 12V4.1 specification standards
80 PLUS Gold Efficiency certified
Primary Japanese Capacitor
24/7 continuous power output with 40 operating temperature
Ultra-silent 92mm Fluid Dynamic Bearing (FDB) cooling fan with intelligent deactivation function
Flat cables with exceptional flexibility

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

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Silverstone Extreme 550Rz Gold 80 PLUS Gold 550W SFX 12V 4.1 PCIe 5 Fully Modular SFX Power Supply

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First Listed on Newegg	May 09, 2026

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Silverstone Extreme 550Rz Gold 80 PLUS Gold 550W SFX 12V 4.1 PCIe 5 Fully Modular SFX Power Supply

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