850 Watts, Platinum, SFX, Fully modular
Power Supplies
21 power supplies from Corsair, MSI, ASUS and more. Most cost $126 to $229, and half cost less than $160.
Power Supplies by use
Recommended Power Supplies
Spec score 8.7
+850W output for higher-power builds
+Fully modular cable design
+Compact SFX form factor for small cases
$173.85-23%List: $224.99
as of 11/04/2026 13:10 PST - DetailsProduct details
CORSAIR SF850 (2024) Fully Modular Low Noise ATX Power Supply – Black | Low-Noise, Fully Modular, 80 PLUS Platinum,
$173.85as of 11/04/2026 13:10 PST - Details
View on AmazonSpec score8.7
Pros
+850W output for higher-power builds
+Fully modular cable design
+Compact SFX form factor for small cases
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.9
850 Watts, Platinum, SFX, ATX 3.0
+Compact SFX form factor for small builds
+850W output for high-end systems
+Includes 16-pin GPU connector
$217.99-7%Was: $233.99
as of 11/04/2026 07:08 PST - DetailsProduct details
SilverStone Technology Extreme 850R Platinum Cybenetics Platinum 850W SFX12V 4.0 (ATX 3.0) & PCIe 5.0 SFX Power Supply,
$217.99as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score7.9
Pros
+Compact SFX form factor for small builds
+850W output for high-end systems
+Includes 16-pin GPU connector
+ATX 3.0 compliant
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.8
1000 Watts, Platinum, SFX, Fully modular
+1000W output for high-power graphics cards
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$149.99-6%Was: $159.99
as of 11/04/2026 07:10 PST - DetailsProduct details
Super Flower Combat SFX FP 1000W Power Supply, ATX 3.1 & PCIe 5.1, Black | Cybenetics Platinum, Small Form Factor, Full
$149.99as of 11/04/2026 07:10 PST - Details
View on AmazonSpec score8.8
Pros
+1000W output for high-power graphics cards
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
+1000 watts: only 26 of 179 here have more watts
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Spec score 8.7
750 Watts, Platinum, SFX, Fully modular
+750W output in a compact SFX form factor
+Fully modular cabling
+ATX 3.1 with PCIe 5.1 support
−SFX-L size fits only compatible small-form-factor cases
$143.99
as of 11/04/2026 12:10 PST - DetailsProduct details
ASUS ROG Loki SFX-L 750W Platinum Power Supply | 80 Plus & Cybenetics Platinum, Fully Modular, ATX 3.1, PCIe 5.1,
$143.99as of 11/04/2026 12:10 PST - Details
View on AmazonSpec score8.7
Pros
+750W output in a compact SFX form factor
+Fully modular cabling
+ATX 3.1 with PCIe 5.1 support
Cons−SFX-L size fits only compatible small-form-factor cases
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
−750 watts: 118 of the 179 here have more watts
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.6
750 Watts, Gold, SFX, Fully modular
+Compact SFX form factor for small form factor builds
+750W output for mid to high-power builds
+Fully modular cabling reduces cable clutter
$155.07
as of 11/04/2026 13:10 PST - DetailsProduct details
Cooler Master V750 SFX Gold ITX SFF Power Supply, PCIe 5.1 Ready White | Certification Cybenetics Gold & Noise A, 80
$155.07as of 11/04/2026 13:10 PST - Details
View on AmazonSpec score8.6
Pros
+Compact SFX form factor for small form factor builds
+750W output for mid to high-power builds
+Fully modular cabling reduces cable clutter
+16-pin GPU connector support
+ATX 3.1 compliant
Compared with the 21 Power Supplies on this page−750 watts: 118 of the 179 here have more watts
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.8
1000 Watts, Platinum, SFX, Fully modular
+1000W output in a compact SFX form factor
+Fully modular cabling
+ATX 3.1 with PCIe 5.1 support
−SFX-L size fits only compatible small-form-factor cases
$279.99
as of 11/04/2026 12:10 PST - DetailsProduct details
ASUS ROG Loki SFX-L 1000W Platinum Power Supply | 80 Plus & Cybenetics Platinum, Fully Modular, ATX 3.1, PCIe 5.1,
$279.99as of 11/04/2026 12:10 PST - Details
View on AmazonSpec score8.8
Pros
+1000W output in a compact SFX form factor
+Fully modular cabling
+ATX 3.1 with PCIe 5.1 support
Cons−SFX-L size fits only compatible small-form-factor cases
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
+1000 watts: only 26 of 179 here have more watts
How pros and cons are picked (About: Disclaimer)Other stores (1)
ASUSVisit store
About this product
Spec score 8.8
1000 Watts, Platinum, SFX, Fully modular
+1000W output for high-end graphics cards and demanding builds
+Fully modular cables for a cleaner build
+SFX form factor for small form factor builds
−SFX size fits only small form factor cases
$184.99
as of 11/03/2026 23:59 PST - DetailsProduct details
LIAN LI SP1000P 1000W SFX Power Supply, 80 Plus Platinum, Black (SP1000P.B) | 12V-2x6 Cable, ATX 3.1 & PCIE 5.1
$184.99as of 11/03/2026 23:59 PST - Details
View on AmazonSpec score8.8
Pros
+1000W output for high-end graphics cards and demanding builds
+Fully modular cables for a cleaner build
+SFX form factor for small form factor builds
+Includes 16-pin GPU connector for newer graphics cards
+ATX 3.1 standard for current PC builds
Cons−SFX size fits only small form factor cases
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
+1000 watts: only 26 of 179 here have more watts
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Spec score 8.8
1000 Watts, Platinum, SFX, Fully modular
+1000W output for high-power graphics cards
+Fully modular cabling reduces cable clutter
+SFX-L form factor for compact builds
$288.54
as of 11/04/2026 07:08 PST - DetailsProduct details
SilverStone Technology SX1000 Platinum, 80 Plus Platinum 1000W Fully Modular SFX-L Power Supply, SX1000-LPT-X V1.1
$288.54as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score8.8
Pros
+1000W output for high-power graphics cards
+Fully modular cabling reduces cable clutter
+SFX-L form factor for compact builds
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
+1000 watts: only 26 of 179 here have more watts
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Spec score 8.7
750 Watts, Platinum, SFX, Fully modular
+Compact SFX form factor for small builds
+750W output for high-end systems
+Fully modular cable design
$159.99
as of 11/04/2026 07:08 PST - DetailsProduct details
SilverStone SX750 Platinum, 750W SFX Fully Modular 80 PLUS Platinum Power Supply, SST-SX750-PT
$159.99as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score8.7
Pros
+Compact SFX form factor for small builds
+750W output for high-end systems
+Fully modular cable design
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
−750 watts: 118 of the 179 here have more watts
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.3
450 Watts, Bronze, SFX
+SFX form factor fits small form factor cases
+Rated at 450 watts for compact builds
−Lower 450 watt output limits high-power components
$126.00-21%Was: $160.00
as of 11/04/2026 13:06 PST - DetailsProduct details
Spec score7.3
Pros
+SFX form factor fits small form factor cases
+Rated at 450 watts for compact builds
Cons−Lower 450 watt output limits high-power components
Compared with the 21 Power Supplies on this page−Bronze: 120 of the 129 here have a higher efficiency
−450 watts: 164 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.3
500 Watts, Bronze, SFX
+Compact SFX form factor suits small form factor builds
+500W output for mid-range compact systems
+80 Plus Bronze rated for efficiency
−SFX size may not fit standard ATX cases without an adapter
$109.16
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Extreme 500 Bronze 80 Plus Bronze 500W SFX Power Supply, SST-EX500-B
$109.16as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score7.3
Pros
+Compact SFX form factor suits small form factor builds
+500W output for mid-range compact systems
+80 Plus Bronze rated for efficiency
Cons−SFX size may not fit standard ATX cases without an adapter
Compared with the 21 Power Supplies on this page−Bronze: 120 of the 129 here have a higher efficiency
−500 watts: 157 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.5
700 Watts, Gold, SFX, Fully modular
+700W output for mid to high-end systems
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
$151.53
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Technology SST-SX700-G 700W SFX Fully Modular 80 Plus Gold PSU with Improved 92mm Fan and Japanese
$151.53as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score8.5
Pros
+700W output for mid to high-end systems
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
Compared with the 21 Power Supplies on this page−700 watts: 133 of the 179 here have more watts
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.3
450 Watts, Bronze, SFX
+Compact SFX form factor suits small form factor builds
+450W output for light to mid-range compact systems
+80 Plus Bronze rated for efficiency
−SFX size may not fit standard ATX cases without an adapter
$90.84
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3-USA), SST-ST45SF-V3-USA
$90.84as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score7.3
Pros
+Compact SFX form factor suits small form factor builds
+450W output for light to mid-range compact systems
+80 Plus Bronze rated for efficiency
Cons−SFX size may not fit standard ATX cases without an adapter
Compared with the 21 Power Supplies on this page−Bronze: 120 of the 129 here have a higher efficiency
−450 watts: 164 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.8
1000 Watts, Platinum, SFX, Fully modular
+1000W output for high-wattage builds
+Fully modular cable design
+Compact SFX form factor for small cases
$229.90
as of 11/04/2026 13:10 PST - DetailsProduct details
Corsair SF1000 (2024) Fully Modular Low Noise 80 Plus Platinum ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Ready –$229.90as of 11/04/2026 13:10 PST - Details
View on AmazonSpec score8.8
Pros
+1000W output for high-wattage builds
+Fully modular cable design
+Compact SFX form factor for small cases
+ATX 3.1 compliant design
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
+1000 watts: only 26 of 179 here have more watts
How pros and cons are picked (About: Disclaimer)Other stores (1)
TargetVisit store
About this product
Spec score 8.6
750 Watts, Gold, SFX, Fully modular
+750W output in a compact SFX form factor
+Fully modular cable design
+Fits small form factor builds
$215.00
as of 11/04/2026 07:07 PST - DetailsProduct details
Seasonic Focus SGX-750 | 750W | 80+ Gold | Full-Modular | SFX Form Factor| Low Noise | Premium Japanese Capacitor | 10
$215.00as of 11/04/2026 07:07 PST - Details
View on AmazonSpec score8.6
Pros
+750W output in a compact SFX form factor
+Fully modular cable design
+Fits small form factor builds
Compared with the 21 Power Supplies on this page−750 watts: 118 of the 179 here have more watts
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.6
750 Watts, Gold, SFX, Fully modular
+750W output for high-end systems
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
$156.99
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Technology SX750 Gold 80 Plus Gold 750W SFX Fully Modular Power Supply SX750-G
$156.99as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score8.6
Pros
+750W output for high-end systems
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
Compared with the 21 Power Supplies on this page−750 watts: 118 of the 179 here have more watts
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.7
600 Watts, Gold, SFX
+SFX form factor fits Mini ITX and compact PCs
+Rated at 600 watts with 80 Plus Gold efficiency
+Quiet Performance design for low noise operation
$139.90
as of 11/04/2026 13:06 PST - DetailsProduct details
be quiet! SFX L Quiet Performance Power 600W 80 Plus Gold Quiet Performance Power Supply for Mini ITX Pcs and Compact
$139.90as of 11/04/2026 13:06 PST - Details
View on AmazonSpec score7.7
Pros
+SFX form factor fits Mini ITX and compact PCs
+Rated at 600 watts with 80 Plus Gold efficiency
+Quiet Performance design for low noise operation
Compared with the 21 Power Supplies on this page−600 watts: 149 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.7
550 Watts, Gold, SFX
+Compact SFX form factor for small builds
+550W output for mid-range systems
+Includes 16-pin GPU connector
$169.12
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Technology Extreme 550Rz Gold 550W SFX12V 4.1 PCIe Gen 5 Modular SFX Power Supply, SST-EX550R-GM
$169.12as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score7.7
Pros
+Compact SFX form factor for small builds
+550W output for mid-range systems
+Includes 16-pin GPU connector
+PCIe Gen 5 compatible
Compared with the 21 Power Supplies on this page−550 watts: 153 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.7
650 Watts, Gold, SFX
+Compact SFX form factor for small builds
+650W output for mid-to-high systems
+Includes 16-pin GPU connector
$183.40
as of 11/04/2026 07:08 PST - DetailsProduct details
SilverStone Technology Extreme 650Rz Gold 650W SFX12V 4.1 PCIe Gen 5 Modular SFX Power Supply, SST-EX650R-GM
$183.40as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score7.7
Pros
+Compact SFX form factor for small builds
+650W output for mid-to-high systems
+Includes 16-pin GPU connector
+PCIe Gen 5 compatible
Compared with the 21 Power Supplies on this page−650 watts: 136 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.0
1000 Watts, Platinum, SFX
+1000W output for demanding systems
+Compact SFX form factor for small builds
+Includes 16-pin GPU connector
No price recorded yet.
Product details
Silverstone Technology Extreme 1000Rz Platinum 1000W SFX 4.1 Power Supply, SST-EX1000R-PMNo price recorded yet.View on Amazon
Spec score8.0
Pros
+1000W output for demanding systems
+Compact SFX form factor for small builds
+Includes 16-pin GPU connector
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
+1000 watts: only 26 of 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.9
700 Watts, Platinum, SFX
+700W output in the compact SFX form factor
+80 Plus Platinum certification for high efficiency
+Fits small form factor builds that need higher wattage
No price recorded yet.
Product details
SilverStone Technology SilverStone SX700-PT SFX 700W, High Efficiency with 80 Plus Platinum CertificationNo price recorded yet.View on Amazon
Spec score7.9
Pros
+700W output in the compact SFX form factor
+80 Plus Platinum certification for high efficiency
+Fits small form factor builds that need higher wattage
Compared with the 21 Power Supplies on this page+Platinum: only 4 of 129 here have a higher efficiency
−700 watts: 133 of the 179 here have more watts
−Fully modular not listed: 95 of the 182 here list one
How pros and cons are picked (About: Disclaimer)About this product



















