About Corsair SF1000 Fully Modular Desktop PSU
| Category | Specification / Detail |
|---|---|
| General | Model / SKU: CP-9020257-NA / RPS0176 |
| Form Factor: SFX | |
| PSU Type: Internal, Fully Modular | |
| ATX Standard Compliance: ATX 12V v3.1 (supports latest standards) | |
| Power & Output | Total Power Output: 1000 W |
| +12V Rail: 83.3 A → up to 1000 W on +12V | |
| +3.3V: 20 A; +5V: 20 A | |
| Combined +3.3V and +5V power: 130 W | |
| +5VSB: 3 A, 15 W | |
| Input | AC Input Voltage: 100–240 V AC |
| Input Current: 12 A (low) – 6 A (high) depending on voltage/frequency | |
| AC Frequency Range: 47–63 Hz | |
| Connectors / Cables | 1 × 24-pin ATX (Motherboard) |
| 2 × 8-pin EPS CPU (4+4) | |
| 4 × 8-pin PCIe (6+2) | |
| 1 × 16-pin PCIe (12VHPWR, 12+4) for modern GPUs | |
| Up to 8 × SATA power connectors, plus peripheral / Molex / PATA outputs | |
| Cable design: Individually sleeved, Type-5 modular cables | |
| Cooling & Thermal | Fan: 92 mm PWM, fluid dynamic bearing |
| Operating Temperature: Rated for continuous 50 °C operation | |
| Zero RPM Mode: Fan stays off under low to moderate load to reduce noise | |
| Efficiency & Certifications | 80 PLUS Platinum certified (high efficiency) |
| Reliability & Build | 100% industrial-grade 105 °C-rated Japanese electrolytic capacitors |
| MTBF: ~100,000 hours | |
| Physical / Other | Dimensions: ~125 × 100 × 63.5 mm (approx. 4.9″ × 3.9″ × 2.5″) |
| Weight: ~2.30 kg | |
| Warranty: 7-year manufacturer warranty | |
| Protection & Safety Features: Over-voltage, under-voltage, over-power, over-temperature, short-circuit protection etc. | |
| Includes SFX-to-ATX bracket (for use in larger / ATX-form cases) |
One of the SF1000’s greatest strengths is its fully modular cable system. Thanks to Type-5 Micro-Fit connectors and individually sleeved cables, users can attach only the cables they need — a major advantage when building inside tight enclosures. This modularity not only makes cable management easier and tidier, but also improves airflow inside the case, which is often critical in small-form-factor systems. The PSU includes a full complement of connectors: 24-pin ATX for the motherboard, 2× 8-pin EPS CPU power, 4× 6+2-pin PCIe cables, and even a 16-pin 12VHPWR cable for the latest generation of GPUs. It also offers multiple SATA power connectors, peripheral / Molex outputs, and other necessary headers — ensuring compatibility with a wide range of components.
Modern builds with powerful GPUs and high power demands will appreciate that the SF1000 is ATX 12V v3.1 compliant and ready for PCIe 5.x / PCIe 5.1 GPUs, making it future-proof for next-gen graphics cards. The +12 V rail can deliver up to 83.3 A, translating into the full 1000 W efficiency for high-power GPUs and CPUs.
Thermal performance and noise control are also well addressed. A 92 mm PWM fan — built with a fluid dynamic bearing — provides efficient cooling while keeping noise levels low. In fact, the SF1000 supports a Zero RPM Mode, meaning the fan stays off under light to moderate loads, making the system near-silent during typical usage (e.g., web browsing, light work, idle). For demanding workloads, the efficient fan cooling ensures stable power delivery without overheating. Furthermore, the PSU is rated for continuous operation up to 50 °C, which means even sustained heavy loads in warm environments won’t compromise its performance.
Reliability is a hallmark of this unit: it uses 100% industrial-grade Japanese electrolytic capacitors rated for 105 °C, known for durability and longevity. The unit’s MTBF (Mean Time Between Failures) rating is around 100,000 hours, signifying many years of dependable service under normal operating conditions. Additional protective features include over-voltage, under-voltage, over-power, over-temperature, and short-circuit protection — offering peace of mind even in power-intensive builds.
Physically, the SF1000 measures roughly 125 × 100 × 63.5 mm, making it compact enough for most SFX cases, yet robust enough to power high-end rigs. For users installing it in standard ATX cases, the PSU comes bundled with an SFX-to-ATX bracket, ensuring flexible installation.
Finally, backing the build is a 7-year manufacturer warranty, underscoring the manufacturer’s confidence in the PSU’s long-term performance.
Whether you’re building an ultra-compact gaming PC, a high-performance workstation in a small chassis, or a modern system with cutting-edge GPU hardware — the Corsair SF1000 combines power, efficiency, flexibility, and reliability in a compact package. It’s one of the most capable SFX power supplies on the market, ideal for enthusiasts who want full power for demanding components without compromising on size, noise, or build neatness.
