10 Best Sfx Power Supplies 2020

Reviewed by Gareth Otwell | Last Updated: Mar 13, 2020

After analyzing 215 products, scanning 1075 reviews, spending more than 36 hours of research and speaking with our test users, we think the EVGA SuperNOVA 650 GM is the one of the Best Sfx Power Supply on the market.

#	Image	Name	Brand	Price
1	⭐Best Choice	EVGA SuperNOVA 650 GM, 80 Plus Gold 650W, Fully Modular, ECO Mode with DBB Fan, 7 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0650-Y1 Check price	EVGA	$$$$$	Check price
2	Best under $100	Seasonic Focus SGX-500, 500W 80+ Gold, Full-Modular, SFX-L Form Factor, Compact Size, Fan Control in Fanless, Silent, and Cooling Mode, 10 Year Warranty, Power Supply, SSR-500SGX. Check price	Seasonic	$$$$$	Check price
3		Corsair SF Series, SF450, 450 Watt, SFX, 80+ Platinum Certified, Fully Modular Power Supply Check price	Corsair	$$$$$	Check price
4	💲Best value for the money	SilverStone Technology 450W SFX Form Factor 80 Plus Bronze Power Supply (ST45SF-V3) Check price	SilverStone Technology	$$$$$	Check price
5		Fractal Design Ion SFX 650G - 80 Plus Gold Certified 650W Full Modular SFX-L Power Supply with UltraFlex DC Wires - 120 mm Silent Fan with FDB Bearings - Zero RPM Mode - Black, FD-PSU-ION-SFX-650G-BK Check price	Fractal Design	$$$$$	Check price
6		SilverStone Technology 500W SFX-L Form Factor 80 Plus Gold Full Modular Lengthened Power Supply with +12V Single Rail, Active PFC (SX500-LG) Check price	SilverStone Technology	$$$$$	Check price
7		FSP 450W Mini ITX Solution/SFX 12V / Micro ATX 80 Plus Bronze Certified Power Supply (FSP450-50SAC) Check price	FSP	$$$$$	Check price
8	Best under $50	APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply Check price	Apevia	$$$$$	Check price
9	👑Premium Pick	CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply Check price	Corsair	$$$$$	Check price
10		Enermax Revolution SFX 550W 80 Plus Gold Full Modular Semi-Fanless Power Supply with SFX-to-ATX PSU Adapter Bracket (ERV550SWT) \|Free Q-Boom Bluetooth Speaker Inside\| Check price	Enermax	$$$$$	Check price

EVGA SuperNOVA 650 GM – Best Overall Sfx Power Supply

650W SFX form factor
80 PLUS Gold certified, with 90% (115VAC) / 92% (220VAC~240VAC) efficiency or higher under typical loads
Fan Size/ Bearing: 92mm double Ball Bearing
Heavy-duty protections, including OVP, UVP, OCP, OPP, and SCP
7 year

Seasonic Focus SGX-500 – Best under $100

COMPACT SIZE: 125 mm (L) x 125 mm (W) x 63.5 mm (H).
FULL MODULAR: Use only the cables you need to reduce clutter to maximize airflow for a better ventilated system.
80 PLUS GOLD: Less energy gets wasted during power conversion; Cut down your electricity usage and be Eco-Friendly.
PREMIUM HYBRID FAN CONTROL: Unsurpassed silent performance in Fanless Mode. Functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.
10 YEAR WORRY-FREE WARRANTY: Our commitment to superior quality.

Corsair SF Series

Compact SFX form-factor to power the world's best small form Factor PCs.
80 Plus Platinum Certified for ultra-high efficiency operation.
Zero RPM fan mode for near-silent operation at low to medium loads.
Individually sleeved, fully modular cables make building a great looking PC easy.
92mm cooling fan delivers Low-Noise operation even at demanding loads.

SilverStone Technology 450W SFX Form Factor 80 Plus Bronze Power – Best Budget Sfx Power Supply

Supports standard SFX form Factor and ATX via included bracket
450W continuous power output at 50℃ operating temperature rated for 24/7 operation
80 plus Bronze level efficiency (82%85% efficiency at 20%100% loading)
Class-leading single +12V rail
Silent running 92mm fan (V3.0)

Fractal Design Ion SFX 650G

New Ultra Flex cables that twist and bend to fit your installation
80 plus Gold efficiency for optimized performance and reduced heat
Semi-passive mode s silent operation under lighter loads
Great electrical output quality, with tight voltage regulation and low ripple
Fully modular design for reduced clutter and maximum ease of installation

SilverStone Technology 500W SFX-L Form Factor 80 Plus Gold Full

Silent running 120mm fan with intelligent semi-fanless operation
Support SFX-L form factor and ATX via included bracket
High efficiency with 80 PLUS Gold certification. Efficiency:87% ~ 90%（20% to 100% loading）
100% modular cables
All cables made with flexible flat arrays. Please Note: KIndly refer the User Manual before use.

FSP 450W Mini ITX Solution/SFX 12V / Micro ATX 80

Compliance with the newest SFX12V V3. 3 | UL-62368
80Plus Bronze certified | efficiency = 85% at typical load
80mm intelligent fan speed control
Black ribbon cables w/ PS2 bracket for easy fitting into ATX case
Full protections OCP, OVP, SCP, OPP, OTP

APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX – Best under $50

APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply
Cooling: 1 x 80mm Automatically Thermal Sensing Fan. All Cables are Sleeved
Connectors: 1 x 20+4pin Main Power, 1 x 4pin 12V(P4), 1 x 6/8pin PCIe, 2 x SATA, 2 x 4pin Molex, 1 x 4pin Floppy
Output: +3.3V@12A, +5V@12A, +12V@28A, -12V@0.3A, +5Vsb@2.5A
Dimension: 125mm x 100mm x 63.5mm (4.92" x 3.94" x 2.5") - L x W x H

CORSAIR RMX Series – Premium Pick

80 PLUS Gold certified for lower power consumption, less noise and cooler temperatures
Tuned for low noise operation even at full load; MTBF hours: 100,000 hours
Zero RPM fan mode for near silent operation at low to medium loads; Continuous output rated temperature: 50°C
100 percent industrial grade, 105°C rated Japanese capacitors ensure unwavering power and reliability
Fully modular cables, so you only connect the cables your system needs. Fan size-5.3 inch. iCUE Compatibility-No. Modern Standby Compatible-No