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CORSAIR SF Series SF450 450W 80 PLUS GOLD Active PFC SFX SFX12V Micro ATX Full Modular Power Supply

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  • SFX
  • Full Modular
  • 80 PLUS GOLD Certified
  • 100 - 240 V 47 - 63 Hz
  • +3.3V@15A, +5V@20A, +12V@37.5A, -12V@0.3A, +5VSB@2.5A

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Corsair SF450

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years
  • Read full details
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great PSU but... 11/20/2019 5:19:30 AM

Overall Review: ..but I do wish it came with more versatile connectors. Overall great and quiet, no major complaints here

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Ownership: more than 1 year
Verified Owner
2/ 5
Faulty Product 10/24/2019 1:55:41 PM

Pros: -small form factor gave me some extra airflow around my GPU
-quiet

Cons: -did not include ATX to SFX adapter
-required aftermarket extensions to reach motherboard connections (and my case is small mini-itx)
-CONSISTENTLY shut off under load...until it wouldn't turn on at all

Overall Review: I have had TWO of these fail in the last 12 months. They worked fine for a bit, then started powering off under load. Wouldn't turn back on for a couple minutes. Finally they stopped turning back on at all. Going with a different brand next time.

Only reason i didn't give 1 star is because they weren't DOA.

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Ownership: more than 1 year
Verified Owner
5/ 5
Gold PSU with platinum/Titanium Efficiency 9/4/2019 8:31:49 AM

Pros: i am using this PSU in an ITX build in a Thermaltake V1 Case. I7-8700K CPU; 32GB Vengeance LPX 3000 RAM; 2 4TB HDD with a Gigabyte ITX 1080 GPU. Performance is outstanding for a Gold PSU

Cons: None

Overall Review: I would highly recommend any of the Corsair SF PSUs for the quality of the components and the stability and performance of the product. I'm waiting for the next Intel refresh to upgrade my CPU and motherboard for a mATX setup and plan on using the SF750 Titanium for that. I would love to see corsair come out with an 850 watt Titanium PSU in the SF series so I could potentially build a threadripper system with this line of PSUs.

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Ownership: 1 week to 1 month
Verified Owner
5/ 5
Good per supply 7/12/2019 8:20:15 PM

Pros: Used it in my media computer build, fits prefect in the case. Rarely the fan runs, but when it does it's very quiet. Works well with my mini itx board

Cons: The wire set is very stiff, I'd prefer the wrapped style wire sets they are easier to position.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
4/13/2019 4:03:44 AM

Pros: Good piking and quality.

Cons: In complect not included adapter from ATX on SFX.

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Ownership: 1 month to 1 year
Verified Owner
5/ 5
Corsair SF450 SFX Power Supply 3/5/2019 3:08:09 PM

Pros: Small and compact power supply, that frees up space inside the computer case. Being fully modular makes the initial installation cleaner/simpler and eliminates the need to have unused cables stored in the computer case. The cooling fan only spins when required so unless under high load no fan noise from the power supply (typical operation). The 450 watt output is more that adequate for my builds.

Recently purchased a third one. Two are installed in small mid tower ATX tower cases (Antec 3840 and a Fractal Design Nano S), and one in a Fractal Design Node 304 mini-ITX bread box. The 24 pin main power cable was just barely long enough to reach the ITX motherboard in the Node 304 case.

Cons: SFX to ATX adapter not included. If you need one, this will add an additional 6$-10$ to the overall cost,
The main 24 pin power cable is to short (many others have complained about this). Unless the computer case is very small an extender cable will be required which will add an additional 6$-10$) to the overall price.

Overall Review: Would recommend.

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Anonymous
Ownership: 1 week to 1 month
Verified Owner
5/ 5
Great for Mini-ITX Builds 2/24/2019 8:26:11 PM

Pros: -Works great in the Mini-ITX build where mine lives now
-Has enough power cables to feed all the devices I need
-Cable length was fairly good for the Mini-ITX build I used this in

Cons: -It went on sale for $10 cheaper after I bought it
-Mail-in rebates take forever

Overall Review: I used this with an SFX adapter to free up space in a Silverstone SG13 case. So far so good, and I've had mostly positive experiences with Corsair PSUs in the past.

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Ownership: more than 1 year
Verified Owner
4/ 5
Great Power Supply, Be Mindful of Your Enclosure size 2/22/2019 5:38:24 AM

Pros: 80+ Gold Efficiency rating, great brand, adorably small, fully modular, robust 450W rating for such a small unit. The 650W must be really impressive!

Cons: Cables are SHORT!! Doesn't come with an ATX adapter

EDIT 2-22-19: With this still running strong in my HTPC I decided to buy another one for a friend's build. I'm building in a mini-ITX tower case (In Win 901) and even with it being a mini-ITX case the 24-pin connector is still waaaaay too short to span the distance from the bottom-mounted PSU location to the motherboard. Even if you ran the cable directly from the PSU to the motherboard (with no thought to clean routing) it wouldn't make the span.

Overall Review: I bought this power supply to use in a microATX case. My goal was to build an HTPC using the Silverstone ML03B case, and reviews on that case had stated that while an ATX-sized power supply will fit, if your build is to include a DVD drive, there's going to be fractions of an inch between the back of the DVD drive and the power supply. After building this PC I can confirm that yes, it would be true. So, my hunt for a smaller power supply began. I'm really glad Corsair decided to break into this smaller power supply market because the brands making the sub-ATX power supplies don't fetch outstanding reviews, and not many (if any) offered a Gold efficiency rating. This power supply has all the markings of a quality unit; fully modular, quality coating, substantial feel, quiet, etc... Durability is yet to be proven, but it's been in operation maybe 8-10 hours a week for the last 4 months so I'd say sudden infant death syndrome is ruled out.

The reason I docked an egg is, the fact that this PS is designed for a smaller case means that it really is DESIGNED FOR A SMALLER CASE! My 24-pin MB connector didn't even reach across the case from the power supply to the mother board socket! It was that tight! You will need to buy an SFX to ATX adapter bracket to mount this power supply if you use it in a case designed for an ATX power supply, and that's actually quite lucky because I wound up having to bend that bracket inward in order to buy an extra 1/4-1/2 inch reach for the 24-pin cable!

Overall, I think this is a quality power supply and will give me many years of reliable use, especially with the limited time it spends in operation, but be careful if you're using it in a microATX application (and buy yourself an SFX to ATX adapter!).

EDIT 2-22-19: As stated in the Cons section, the 24 pin cable didn't even reach the mobo in a mini-ITX tower case. Still, high quality power supply, but just plan to buy an SFX to ATX adapter AND a 24 pin extension along with your power supply. Just add them all to the cart at the same time and save yourself an extra few days of waiting on a partially built computer.

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