850 Watts, Platinum, SFX, ATX 3.0
SilverStone Power Supplies
14 SilverStone power supplies. Most cost $109 to $256, and half cost less than $165.
Spec score 8.6
+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 score8.6
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 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
+850 watts: 8 of the 14 here have fewer watts
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 9.5
1000 Watts, Platinum, Fully modular
+1000W output for demanding systems
+Fully modular cable design
+Ultra compact 140mm depth
$256.99
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Technology 1000 Watt Fully Modular 80 Plus Platinum Power Supply in Ultra Compact 140mm in Depth ST1000-PTS
$256.99as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score9.5
Pros
+1000W output for demanding systems
+Fully modular cable design
+Ultra compact 140mm depth
Compared with the 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
+1000 watts: the most watts of the 14 here
+Fully modular: only 7 of 14 here have one
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Spec score 9.5
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 score9.5
Pros
+1000W output for high-power graphics cards
+Fully modular cabling reduces cable clutter
+SFX-L form factor for compact builds
Compared with the 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
+1000 watts: the most watts of the 14 here
+Fully modular: only 7 of 14 here have one
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Spec score 9.3
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 score9.3
Pros
+Compact SFX form factor for small builds
+750W output for high-end systems
+Fully modular cable design
Compared with the 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
+Fully modular: only 7 of 14 here have one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 9.2
850 Watts, Gold, Fully modular
+850W output for high-end systems
+Fully modular cable design
+Compact 140mm design
$114.99
as of 11/04/2026 07:08 PST - DetailsProduct details
Silverstone Technology 850W Computer Power Supply PSU Fully Modular with 80 Plus Gold & 140mm Design Power Supply
$114.99as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score9.2
Pros
+850W output for high-end systems
+Fully modular cable design
+Compact 140mm design
Compared with the 14 Power Supplies on this page+850 watts: 8 of the 14 here have fewer watts
+Fully modular: only 7 of 14 here have one
−Gold: 7 of the 14 here have a higher efficiency
How pros and cons are picked (About: Disclaimer)Other stores (1)
Best BuyVisit store
About this product
Spec score 7.6
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 score7.6
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 14 Power Supplies on this page−Bronze: 12 of the 14 here have a higher efficiency
−500 watts: 12 of the 14 here have more watts
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 7.6
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 score7.6
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 14 Power Supplies on this page−450 watts: 13 of the 14 here have more watts
−Bronze: 12 of the 14 here have a higher efficiency
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 9.5
1000 Watts, Platinum, ATX, Fully modular
+1000W output for demanding systems
+Fully modular cable design
+Includes 16-pin GPU connector
$221.40
as of 11/04/2026 07:08 PST - DetailsProduct details
SilverStone Technology HELA 1000Rz 80 Plus Platinum 1000W ATX 3.1 & PCIe 5 Fully Modular ATX Power Supply,
$221.40as of 11/04/2026 07:08 PST - Details
View on AmazonSpec score9.5
Pros
+1000W output for demanding systems
+Fully modular cable design
+Includes 16-pin GPU connector
+ATX 3.1 compliant
+PCIe 5 support
Compared with the 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
+1000 watts: the most watts of the 14 here
+Fully modular: only 7 of 14 here have one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 9.1
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 score9.1
Pros
+700W output for mid to high-end systems
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
Compared with the 14 Power Supplies on this page+Fully modular: only 7 of 14 here have one
−700 watts: 8 of the 14 here have more watts
−Gold: 7 of the 14 here have a higher efficiency
How pros and cons are picked (About: Disclaimer)About this product
Spec score 9.1
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 score9.1
Pros
+750W output for high-end systems
+Fully modular cabling reduces cable clutter
+SFX form factor fits small builds
Compared with the 14 Power Supplies on this page+Fully modular: only 7 of 14 here have one
−Gold: 7 of the 14 here have a higher efficiency
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.2
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 score8.2
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 14 Power Supplies on this page−650 watts: 10 of the 14 here have more watts
−Gold: 7 of the 14 here have a higher efficiency
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.1
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 score8.1
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 14 Power Supplies on this page−550 watts: 11 of the 14 here have more watts
−Gold: 7 of the 14 here have a higher efficiency
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.7
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 score8.7
Pros
+1000W output for demanding systems
+Compact SFX form factor for small builds
+Includes 16-pin GPU connector
Compared with the 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
+1000 watts: the most watts of the 14 here
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
Spec score 8.4
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 score8.4
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 14 Power Supplies on this page+Platinum: the highest efficiency of the 14 here
−700 watts: 8 of the 14 here have more watts
−Fully modular not listed: 7 of the 14 here list one
How pros and cons are picked (About: Disclaimer)About this product
SilverStone Power Supplies at a glance
14 of the 182 Power Supplies we list are SilverStone (8%). Half of them cost less than $165; across all Power Supplies, half cost less than $160.
Most listed here: 1000 watts (4), Platinum efficiency (7), SFX form (11).
Compare specs
| power supply | Watts | Efficiency | Form | Modular | Spec score | Price |
|---|---|---|---|---|---|---|
| 850 | Platinum | SFX | 8.6 | $217.99 as of 11/04/2026 07:08 PST - Details | ||
| 1000 | Platinum | Fully modular | 9.5 | $256.99 as of 11/04/2026 07:08 PST - Details | ||
| 1000 | Platinum | SFX | Fully modular | 9.5 | $288.54 as of 11/04/2026 07:08 PST - Details | |
| 750 | Platinum | SFX | Fully modular | 9.3 | $159.99 as of 11/04/2026 07:08 PST - Details | |
| 850 | Gold | Fully modular | 9.2 | $114.99 as of 11/04/2026 07:08 PST - Details | ||
| 500 | Bronze | SFX | 7.6 | $109.16 as of 11/04/2026 07:08 PST - Details | ||
| 450 | Bronze | SFX | 7.6 | $90.84 as of 11/04/2026 07:08 PST - Details | ||
| 1000 | Platinum | ATX | Fully modular | 9.5 | $221.40 as of 11/04/2026 07:08 PST - Details | |
| 700 | Gold | SFX | Fully modular | 9.1 | $151.53 as of 11/04/2026 07:08 PST - Details | |
| 750 | Gold | SFX | Fully modular | 9.1 | $156.99 as of 11/04/2026 07:08 PST - Details |













