Corsair SF Series, SF750, 750 Watt, SFX, 80+ Platinum Certified, Fully Modular Power Supply (CP-9020186-NA)
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This is the gold standard 750W SFX power supply for sub-15L ITX builds, featuring ultra-flexible paracord cables and a fan that stays off under 300W loads.
The SF750 delivers 750 continuous watts in a tiny SFX footprint, easily powering top-tier hardware like a 7800X3D and RTX 4090. The flexible paracord cables are specifically cut to 300-400mm, making cable management in 10L cases incredibly simple.
If you want native ATX 3.0 support and a 12VHPWR cable in the box, look for the newer SF850 ATX 3.0 model.
Regret Score™
Very Low RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Handles massive transient power spikes from RTX 3090 and 4090 GPUs without tripping OCP
- Individually sleeved paracord cables bend easily around tight corners in sub-15L cases
- 92mm fan stays completely off until the system pulls around 300W of power
- 80+ Platinum rating hits 92% efficiency, keeping the unit cool enough to run passively during desktop use
Cons
- Only includes two 8-pin PCIe cables with daisy-chained pigtails, lacking a third dedicated cable
- Cables measure just 300mm to 400mm, making them too short for standard ATX mid-towers
- Lacks a native 12VHPWR cable for modern Nvidia 40-series graphics cards
- Some users report a buzzing coil whine when the system pulls over 200 watts
Dimension Scores
Handles massive transient power spikes from RTX 4090s while maintaining 92% Platinum efficiency.
The 92mm fan stays completely off under 300W loads, though a few units exhibit minor coil whine at high loads.
Uses premium Japanese 105°C capacitors, but docked slightly due to a known popping issue in the older 1950 batch.
The individually sleeved paracord cables bend effortlessly in tight 10L ITX cases.
Best For
- Sub-15L small form factor builds like the Dan A4-H2O or FormD T1
- High-end ITX systems running power-hungry GPUs like the RTX 4090
Not Recommended For
- Standard ATX mid-tower cases requiring cable runs longer than 400mm
- Budget APU builds where a 750W Platinum unit is massive overkill
Watch Out For
- The included 24-pin cable is only 300mm long. If you use the included SFX-to-ATX bracket to mount this in a larger case, the cables will not reach your motherboard.
- There is no native 12VHPWR cable in the box. You must buy a separate Corsair Type-4 adapter cable to cleanly power an RTX 4080 or 4090.
- The PCIe cables use daisy-chained pigtails. If your graphics card requires three dedicated 8-pin connections, you have to source an extra Type-4 cable.
Full Specifications
| ASIN | B07M63H81H |
| Brand | Corsair |
| Series | SF |
| Voltage | 120 Volts |
| Wattage | 750 watts |
| Model Name | SF |
| Form Factor | SFX |
| Item Weight | 1.98 pounds |
| Manufacturer | CORSAIR |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 750.0 |
| Item model number | CP-9020186-NA |
| Compatible Devices | Personal Computer |
| Product Dimensions | 3.94 x 4.92 x 2.5 inches |
| Item Dimensions LxWxH | 3.94 x 4.92 x 2.5 inches |
| Item dimensions L x W x H | 3.94 x 4.92 x 2.5 inches |
| Is Discontinued By Manufacturer | No |
What Buyers Say
The SF750 is the most recommended power supply for small form factor builds. The braided paracord cables are a massive lifesaver because they bend easily around tight corners in 10L cases without fighting back. The 92mm fan stays completely off during web browsing and light work, keeping the unit at 0 dBA for desktop use. You do have to watch out for the PCIe cables, as the box only includes two daisy-chained 8-pins. A few buyers experienced coil whine when pulling over 200 watts, but the vast majority praise its ability to handle massive transient spikes from 3090s and 4090s without shutting down.
“running my 5800x3d and 4090 on this tiny brick for a year and the fan barely even spins up, absolute god tier psu just buy it”
Common Praise
- Handles RTX 4090 transient power spikes without tripping OCP
- Individually sleeved paracord cables bend easily in sub-15L cases
- 92mm fan stays completely off under 300W load
- Included SFX-to-ATX bracket gives mounting flexibility
Common Complaints
- Only includes two PCIe cables with pigtails instead of three dedicated cables
- Cables are strictly 300-400mm and won't reach in ATX cases
- Some units emit a buzzing coil whine at 200W+ loads
- Does not include a native 12VHPWR cable for RTX 40-series GPUs
Ownership Tips
- The fan curve is so relaxed you might think the fan is broken during the first week of use.
- You will likely need to buy a separate Corsair Type-4 12VHPWR cable if you upgrade to a modern Nvidia GPU.
- Dust buildup is minimal since the fan spends 80% of its life powered off.
Frequently Asked Questions
Can this 750W unit actually handle an RTX 4090?
Yes. Dozens of users run a 4090 and a 7800X3D on this exact unit without tripping the over-current protection. You will need to buy a separate 12VHPWR cable to connect it cleanly.
Are the cables long enough to use in a normal mid-tower case?
No. The 24-pin motherboard cable is 300mm and the PCIe cables are 400mm. You will need custom extensions to reach your components in a standard ATX case.
Does the cooling fan run constantly?
No. The 92mm fan features a Zero RPM mode and stays completely off until your system pulls around 300W to 400W of load.
Does it come with the new 12VHPWR cable for Nvidia 40-series cards?
No. The original SF750 only includes standard 8-pin PCIe cables. You have to buy Corsair's Type 4 12VHPWR cable separately.
Is there an issue with coil whine?
It varies by unit. A subset of users report a buzzing or chirping sound when pulling over 200W, while the majority report dead silent operation.
Buying Guide
You are looking at the most recommended power supply in the SFF community. You need to know that the cables in this box are specifically cut to 300-400mm for ITX cases, so do not buy this expecting to route them through a standard ATX mid-tower. If you plan to run a modern Nvidia 40-series graphics card, you must buy a separate Type-4 12VHPWR cable because this older model only includes standard 8-pin connectors.
SFX Form Factor
This is the physical size of the power supply. It is about half the size of a standard ATX brick, allowing it to fit into sub-15L PC cases.
Zero RPM Fan Mode
The cooling fan literally does not spin until your PC demands heavy power. It acts like a hybrid car running on electric mode while you browse the web.
80+ Platinum
This means the unit converts 92% of the wall power into usable PC power, wasting very little as heat. Less heat means the fan does not have to work as hard.
Alternatives
If you need native ATX 3.0 support and a 12VHPWR cable in the box, search for an 850W SFX ATX 3.0 power supply.
You Might Also Like
Micro ATX PC Case | Mini Tower Computer case | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 280mm GPU | 160mm CPU Cooler Height - White S6
$0-$49This MAQUY S6 is a budget Micro ATX case with a pre-installed 120mm RGB fan, supporting 280mm GPUs and 240mm top radiators for entry-level builds.
Micro ATX Case, Mini PC ITX Desktop Computer Case MATX Case Support ATX PSU/250mm GPU/135mm CPU Cooler/1x 3.5’’HDD or 2X 2.5’’SSD/USB 3.0 Port
$0-$49This is a compact 38.5x19.5x32.5cm Micro ATX case supporting 250mm GPUs and 135mm CPU coolers, designed for budget workstation builds.
Small PC Case, ITX Mini Computer Case with 360 Degree Ventilation, 10.5L Compact Design for ITX Motherboard, SFX Power Supply, 4 x 2.5 Inch SSDs
$50-$99This 10.5L acrylic ITX case supports SFX/SFX-L PSUs, ITX motherboards, and GPUs up to 210mm, designed for compact builds.
Micro ATX PC Case | Mini Tower Computer case Support Vertical GPU Mount | Pre-Installed 120mm*1 RGB Fan | ITX Desktop Chassis for MATX/ITX | 240 RAD | 320mm GPU | 165mm CPU Cooler Height-Black
$0-$49A budget Micro ATX case with a mesh front, tempered glass, and support for 320mm GPUs and 240mm AIOs, but only one pre-installed 120mm RGB fan.