CORSAIR - SF-L Series SF850L 80 Plus Gold Fully Modular ATX Power Supply - Black
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Description
Features
Compact SFX-L Form-Factor PSU
Delivers 850 of continuous power, ideal for power-dense small-form-factor PCs.
Fully Modular, Micro-Fit PSU Connectors
With flexible cabling, taking up less space for tidy cable management and compatibility in small cases.
Intel ATX 3.0 Certified
Compliant with the ATX 3.0 power standard, supporting the PCIe Gen 5 platform and resisting transient power spikes.
120mm Rifle Bearing PWM Fan
Delivers quiet, powerful cooling, with Zero RPM fan mode for near-silent operation at lower loads.
80 PLUS Gold-Certified
Operates at up to 90% efficiency, and Cybenetics-certified for lower power consumption, less noise, and cooler temperatures.
100% Japanese 105°C-Rated Electrolytic Capacitors:
Ensure unwavering power and reliability.
Modern Standby Support:
Unlocks extremely fast wake-from-sleep times and better low-load efficiency.
40°C Maximum Operating Temperature:
For reliable power even under high-stress conditions.
Resonant LLC Topology:
Provides clean, consistent power and enables use of more energy-efficient sleep states.
Seven-Year Warranty:
For complete peace of mind.
What's Included
CORSAIR SF-L Series SF850L 80 Plus Gold Fully Modular ATX Power Supply
1x 24-pin ATX (24-pin) Connector
2x ATX 12V/EPS12V (4+4-pin) Connectors
2x PCIe 8-pin (6+2) Connectors
1x PCIe 8-pin (6+2)*2 Pigtail Connector
1x PCIe 16-pin (12+4) Connector
1x SATA (Straight) Connector
1x SATA (Right) Connector
1x PATA Connector
AC Power cord
Key Specs
- Wattage850 watts
- ModularFully modular
- Energy EfficiencyCybenetics Platinum, 80 PLUS Gold
- ATX Connector1x 24-pin ATX (24-pin) Connector. 2x ATX 12V/EPS12V (4+4-pin) Connectors
- PCIe Connector2x PCIe (6+2-pin)
- Peripheral Connector4
- SATA Connector4x SATA (Straight) Connectors, 4x SATA (Right) Connectors
- EPS12V Connector2
- PCI Express VersionPCI Express 5.0
- Form FactorSFX-L
- Product Length130 millimeters
General
- Product NameSF-L Series SF850L 80 Plus Gold Fully Modular ATX Power Supply
- BrandCORSAIR
- Model NumberCP-9020245-NA
- ColorBlack
- Color CategoryBlack
Power
- Wattage850 watts
- ModularFully modular
- Energy EfficiencyCybenetics Platinum, 80 PLUS Gold
- Overload ProtectionYes
- Power Cord IncludedYes
Connectivity
- ATX Connector1x 24-pin ATX (24-pin) Connector. 2x ATX 12V/EPS12V (4+4-pin) Connectors
- Floppy ConnectorFALSE
- PCIe Connector2x PCIe (6+2-pin)
- Peripheral Connector4
- SATA Connector4x SATA (Straight) Connectors, 4x SATA (Right) Connectors
- EPS12V Connector2
- PCI Express VersionPCI Express 5.0
- Form FactorSFX-L
Dimensions
- Product Height63.5 millimeters
- Product Width125 millimeters
- Product Length130 millimeters
- Product Weight39.52 ounces
Cooling
- Cooling SystemAir
- Cooling Fan TypeRifle Bearing Fan
- Number of Fans Included1
Features
- Lighting TypeNone
Warranty
- Manufacturer's Warranty - Parts7 years
- Manufacturer's Warranty - Labor7 years
Other
- UPC840006646266
Customer reviews
Rating 4.5 out of 5 stars with 13 reviews
(13 customer reviews)Rating by feature
- Value4.4
Rating 4.4 out of 5 stars
- Quality4.6
Rating 4.6 out of 5 stars
- Ease of Use4.6
Rating 4.6 out of 5 stars
Customers are saying
Customers find value in the SF-L Series SF850L 80 Plus Gold Fully Modular ATX Power Supply, but have concerns about its cable stiffness. While some customers appreciate the product's modularity and quiet operation, others find the cables to be too stiff and difficult to bend, which can make installation challenging.
This summary was generated by AI based on customer reviews.
- Cons mentioned:Cable
Rated 5 out of 5 stars
A small but powerful power supply indeed!
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.If you are looking for a newer PSU (power supply unit) that packs a punch and can utilize more cable space, this is the one for you! Granted, the only downside is that it uses the newer micro-cut (type 5) cables, so that means the connectors that plug into the PSU is alot smaller so normal cables bought elsewhere will NOT fit. So keep that in mind. There are PLENTY of cables inside the box to even power a 4080 graphics card. Cables are a bit rigid so make sure the case you have is not a small form factor build, or you might have to consider getting custom sleeved cables! Overall, fantasitc quality and the zero-rpm fan is always a plus feature!
I would recommend this to a friend Rated 5 out of 5 stars
Small, flexible, and works well.
||Posted . Owned for 3 weeks when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Great in a Cooler Master NR200P - the cables are short (as expected for SFF builds) but not too short. It worked really well and the cables were flexible enough to fit without getting in the way of airflow.
I would recommend this to a friend- Cons mentioned:Cable
Rated 4 out of 5 stars
Good PSU but…
|Posted . Owned for less than 1 week when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I got this PSU for a SFF build and never had problems so far. My main complaint is that the type 5 cables are super stiff and hard to bend unlike the cables they provided for the sf750 and sf600. You have to pay extra to get the individually sleeved cables that corsair has and its super long for a SFF. Considering returning this and getting the SF750 for their braided easy to manage cables.
I would recommend this to a friend - Pros mentioned:PowerCons mentioned:Coil whine
Rated 5 out of 5 stars
Great PSU
|Posted . Owned for 3 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I know most SFX builds don’t use this much power, but my 7900XT had some major coil whine. Replaced my 750w with this 850w and the coil whine went away.
I would recommend this to a friend - Pros mentioned:QuietCons mentioned:Cable
Rated 5 out of 5 stars
Quality Corsair PSU
||Posted . Owned for 2 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Quiet and efficient, does everything a good PSU should. Only complaint is the cables are a little too short and rigid, so it might be an issue depending on your PC case.
I would recommend this to a friend - Pros mentioned:Compatibility
Rated 5 out of 5 stars
Small and powerful.
||Posted . Owned for 2 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Great power supply for the price and can handle my 7800XT and 7800X3D with ease.
I would recommend this to a friend - Pros mentioned:High-performance
Rated 5 out of 5 stars
Powerhouse Performance: CORSAIR SF850L Delivers!
||Posted . Owned for 7 months when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.Ultimate power for high-performance rigs! Paired this CORSAIR SF-L Series SF850L with my Corsair 011 mini and RTX 4080 Super—what a powerhouse combo! Smooth, stable performance for demanding setups. Fully modular design streamlines cable management. Perfect for serious gamers and PC enthusiasts.
I would recommend this to a friend Rated 5 out of 5 stars
Great PSU
||Posted . Owned for 1 month when reviewed.This reviewer received promo considerations or sweepstakes entry for writing a review.I love this psu! I built a mini itx that infortunately had water spilled on it and killed it. I had such a good experience with the power supply(the only part on the old pc that I hand had to replace at some point) that I had to buy it again when it met its unfortunate demise. Would recommend!
I would recommend this to a friend
What experts are saying
Q: QuestionCan this fit in a Lian li o11 mini case
Asked by Random.
- A:Answer Hello, If that case can fit an SFX-L form factor PSU, then it will fit! -Art
Answered by Corsair
Q: QuestionHello, when is this product going to be back in stock?
Asked by Bobbie.
- A:Answer Hello, Please contact the store directly for assistance! -Art
Answered by Corsair
Q: QuestionWill this fit a NR200 Mini ITX Desktop Case?
Asked by HargelM.
- A:Answer Hello, Please confirm your case fits a PSU with the following dimensions: 125x130x63.5mm. -Art
Answered by Corsair
Q: Questiondoes it come with any cables i'm changing from non modular and i need more power.
Asked by yourlocalpootis.
- A:Answer Hello, Of course! -Art
Answered by Corsair