Corsair
Corsair SF1000L 1000W SFX ATX 3.0 Power Supply
★★★★★
1000WPCIe Gen 580 PLUS Gold
Compact Powerhouse for Next-Gen PCsThe Corsair SF-L Series Fully Modular SFX Power Supply delivers high wattage in a small form factor, perfect for building powerful and compact PCs. With ATX 3.0 and PCIe 5.0 compliance, it supports the latest PC hardware and offers exceptional efficiency. Specif...
$305.90*
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.
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Overview
Compact Powerhouse for Next-Gen PCs
The Corsair SF-L Series Fully Modular SFX Power Supply delivers high wattage in a small form factor, perfect for building powerful and compact PCs. With ATX 3.0 and PCIe 5.0 compliance, it supports the latest PC hardware and offers exceptional efficiency.
Specifications:
- Form Factor: SFX-L
- Wattage: 1000W
- Certification: 80 PLUS Gold
- Compliance: ATX 3.0, PCIe 5.0
- Fan: 120mm Fluid Dynamic Bearing PWM Fan with Zero RPM Mode
- Capacitors: 100% Japanese 105°C-Rated Electrolytic Capacitors
- Cables: Fully Modular, Micro-Fit PSU Connectors
Key Features
Fully Modular, Micro-Fit PSU Connectors: With flexible cabling, taking up less space for tidy cable management and compatibility in small cases
Intel ATX 3.1 Certified: Compliant with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and resisting transient power spikes
120mm Fluid Dynamic Bearing PWM Fan: Delivers quiet, powerful cooling, with Zero RPM fan mode for near-silent operation at lower loads
80 PLUS Gold and Cybenetics Platinum-Certified: Operates at up to 90% efficiency for lower power consumption, less noise, and cooler temperatures
100% Japanese 105°C-Rated Electrolytic Capacitors: Ensure unwavering power and reliability
Specifications
Model
SF1000L
Wattage
1000W
Form Factor
SFX
Modular Type
Fully Modular
Connector Type
Micro-Fit PSU Connectors
Certification
Intel ATX 3.1 Certified
PCIe Support
PCIe Gen 5.1
Fan Size
120mm
Fan Bearing Type
Fluid Dynamic Bearing
Fan Features
PWM Fan, Zero RPM fan mode
Efficiency Rating
80 PLUS Gold, Cybenetics Platinum-Certified
Capacitors
100% Japanese 105°C-Rated Electrolytic Capacitors
Pros & Cons
👍 Pros
- Fully modular, Micro-Fit PSU connectors provide flexible cabling, taking up less space for tidy cable management in compact cases.
- Intel ATX 3.1 Certified, it complies with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and resisting transient power spikes.
- The 120mm Fluid Dynamic Bearing PWM fan delivers quiet, powerful cooling, with a Zero RPM fan mode for near-silent operation at lower loads.
- 80 PLUS Gold and Cybenetics Platinum-Certified, ensuring high efficiency up to 90% for lower power consumption, less noise, and cooler temperatures.
- 100% Japanese 105°C-rated electrolytic capacitors are used to guarantee unwavering power delivery and long-term reliability.
👎 Cons
- The "Micro-Fit PSU Connectors" might require specific cable types or adapters not universally compatible with all custom cabling solutions.
- While quiet, the 120mm fan is smaller than fans found in some larger ATX power supplies, which could mean higher RPMs under full load when not in Zero RPM mode.
- The 1000W output, while powerful, might be overkill and less cost-effective for builds with more modest power requirements.
- As a high-wattage power supply, its physical size might still be a consideration for the absolute smallest SFX cases, despite its modular design.
- The benefits of Intel ATX 3.1 certification are primarily for modern systems with PCIe Gen 5.1, offering less advantage for older builds.
Frequently Asked Questions
What makes the Corsair SF1000L suitable for compact PC builds?
The Corsair SF1000L features fully modular, Micro-Fit PSU connectors, which results in flexible cabling that takes up less space, ideal for tidy cable management in small cases.
Is this power supply compatible with the latest PC hardware standards?
Yes, it is Intel ATX 3.1 Certified, ensuring compliance with the ATX 3.1 power standard, supporting the PCIe Gen 5.1 platform and offering resistance to transient power spikes.
How does the cooling system contribute to the quiet operation of this PSU?
This power supply is equipped with a 120mm Fluid Dynamic Bearing PWM fan that delivers quiet, powerful cooling, further enhanced by a Zero RPM fan mode for near-silent operation at lower loads.
What efficiency ratings does the Corsair SF1000L hold?
It is 80 PLUS Gold and Cybenetics Platinum-Certified, meaning it operates at up to 90% efficiency, contributing to lower power consumption, less noise, and cooler temperatures.
What type of capacitors are used in this power supply for reliability?
The Corsair SF1000L utilizes 100% Japanese 105°C-rated electrolytic capacitors, which are designed to ensure unwavering power delivery and long-term reliability.
What is the wattage output of this Corsair SFX power supply?
This power supply provides a robust 1000W output, making it suitable for high-performance systems.
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