Silverstone Technology FX350-G-VT
4.8Editor score
Gold efficiency for low waste
1U Flex ATX support
Fixed cables for simplicity
In this guide
Choosing the right power supply is critical for system stability. A 350W unit fits small form factors and budget PCs while delivering reliable energy to essential components without unnecessary waste.
We evaluated ten models based on efficiency ratings, connector variety, cooling noise, and safety protections. Our list highlights options for ATX, Flex, and Mini-ITX cases from trusted brands.
Each pick includes real specs and pros to guide your decision. Prices and availability change frequently so verify current listings before purchasing to ensure you get the best value today.
Top 3 Picks for Best 350W PSU
Antec BP350 Basiq
5.0Editor score
Trusted Antec reliability
Stable entry level power
Efficient daily operation
Thermaltake Smart 500W
4.6Editor score
White certification for efficiency
120mm quiet cooling fan
Five year limited warranty
Top 10 Best 350W PSU in 2026 Compared
The following table details every model in this roundup. Use it to compare form factors, certifications, and key specs side by side to find the perfect match for your case.
ProductsSpecificationsEditor scorePrice
Best Budget
Thermaltake Smart 500W
500W continuous output
80 Plus White certified
ATX 12V V2.3
120mm cooling fan
4.6Editor score
Editor's Choice
Silverstone FX350-G-VT
350W continuous output
80 Plus Gold certified
Flex ATX 1U form
Fixed cable management
4.8Editor score
Editor's Choice
Apevia ITX-PFC400W
400W maximum power
Fully modular design
Mini ITX FLEX support
40mm dual ball fan
4.0Editor score
APEVIA VENUS450W
450W ATX power
120mm auto thermal fan
Multiple protection systems
Flexible CPU connectors
4.0Editor score
ARESGAME AGV Series 500W
500W continuous output
80 Plus Bronze certified
Non modular design
Five year warranty
4.4Editor score
PSU for ATX 350W
350W power supply
HG2-6300P model
ROHS compliant design
Standard ATX sizing
4.2Editor score
PC Power Supply 350W
350W low energy
115/230V adjustable
Thermal fan control
ATX12V 2.31 spec
5.0Editor score
Antec BP350 Basiq
350W ATX12V
Basiq reliable design
24/4-Pin support
Standard ATX form
5.0Editor score
Antec Basiq BP350
350WATT output
ATX12V V2.01
80mm quiet fan
Stable power delivery
4.5Editor score
600W Power Supply
600W continuous output
80 Plus Gold rated
125mm FDB fan
Gaming compatibility
4.8Editor score
1. Thermaltake Smart 500W – Best Budget PSU
Thermaltake Smart 500W
500W continuous output
120mm fan cooling
Active PFC included
80 Plus White rated
The Thermaltake Smart 500W is a top value pick for those seeking reliable power without overspending. It delivers 500W continuous output with 80 Plus White efficiency and a 120mm fan for quiet cooling.
Pros
- Affordable price point
- Quiet cooling performance
- Strong protection suite
- Reliable brand history
Cons
- Non modular cables
- White efficiency tier
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Its Active PFC ensures better efficiency under load while protections like OVP and SCP safeguard your components. The 12V rail supports mid range GPUs making it versatile for budget builds.
While non modular cables can clutter small cases this model works well in standard ATX enclosures. The fan may spin up under heavy load but remains acceptable for daily office or gaming tasks.
Buyers wanting solid reliability at a low cost should choose this unit. It balances performance and price effectively for entry level systems needing stable power delivery without premium features.
Efficiency and Safety
80 Plus White certification ensures 80 percent efficiency reducing electricity waste and heat. Active PFC further improves power factor and stabilizes voltage output.
Cooling and Noise
A 120mm ultra quiet fan provides adequate airflow for standard ATX cases. Thermal control keeps noise low during typical usage while ramping up under sustained loads.
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2. Silverstone FX350-G-VT – Best Premium PSU
Silverstone FX350-G-VT
350W continuous output
80 Plus Gold rated
Flex ATX 1U
Single 12V rail
The Silverstone FX350-G-VT stands out as the best premium choice for compact builds needing high efficiency. It offers 350W continuous power with 80 Plus Gold certification and a Flex ATX 1U form factor.
Pros
- High efficiency tier
- Compact Flex form
- Strong 12V rail
- 24/7 operation rating
Cons
- Higher price
- Fixed cables
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Its single +12V rail delivers strong current for CPUs and GPUs while Active PFC maintains stability. The design supports 24/7 operation making it ideal for office workstations or small server cases.
Fixed cables limit flexibility in tight spaces but simplify management in dedicated enclosures. While pricier than standard ATX units the efficiency and compact size justify the cost for specialized builds.
Choose this PSU for HTPCs or mini PCs where space and efficiency matter. It combines reliable power delivery with a professional build quality suited for demanding environments.
Form Factor Advantage
Flex ATX 1U sizing fits thin cases and compact setups standard ATX units cannot. This design maximizes internal space for drives or cooling in tight enclosures.
Efficiency and Reliability
80 Plus Gold ensures around 90 percent efficiency at typical loads lowering power draw and heat. The 24/7 rating guarantees long term stability for continuous use.
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3. Apevia ITX-PFC400W – Editor's Choice PSU
Apevia ITX-PFC400W
400W maximum power
Fully modular design
Mini ITX support
Active PFC 90-264V
The Apevia ITX-PFC400W earns our Editor's Choice for offering full modularity in a Mini-ITX form. It delivers 400W with Active PFC and includes connectors for modern GPUs and motherboards.
Pros
- Modular cable flexibility
- Small ITX form
- Wide voltage support
- Dedicated PCIe connector
Cons
- Lower rating
- Small 40mm fan
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Modular cables help route power cleanly in small cases where space is tight. The wide voltage range 90-264V ensures compatibility across regions while protections like OTP and SCP keep systems safe.
Its 40mm fan is small and may run noisy under load. The lower rating and smaller footprint limit raw output compared to larger ATX units but suit low wattage ITX builds well.
Select this PSU for compact Mini-ITX systems needing clean cable routing. It balances size and flexibility effectively for builds prioritizing airflow and tidy aesthetics.
Cable Management
Full modularity allows you to use only needed cables reducing clutter in compact cases. This improves airflow and simplifies installation in tight enclosures.
Compatibility and Protection
Supports full range voltage input making it ideal for travel or international use. Protections ensure safety during power spikes or thermal events.
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4. APEVIA VENUS450W – Good Value PSU
APEVIA VENUS450W
450W ATX power
120mm auto thermal
Multiple protections
Flexible connectors
The APEVIA VENUS450W offers solid basic power for budget ATX builds. It provides 450W with a 120mm thermal controlled fan and comprehensive protections ensuring safe operation under typical loads.
Pros
- Low cost option
- Auto thermal fan
- Complete protection suite
- Split connector support
Cons
- Basic efficiency
- Limited warranty
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Split connectors for CPU and motherboard make it adaptable to older or newer boards. The auto thermal fan reduces noise at idle while ramping up when components demand more power.
Efficiency ratings are not specified meaning higher energy loss than certified units. While affordable for entry level PCs it lacks the efficiency guarantees of higher tier models.
Choose this for strict budget builds where cost matters most. It delivers reliable power for low wattage components without extra features or certifications.
Adaptability
Split 24pin and 8pin connectors allow compatibility with 20pin and 4pin legacy boards. This flexibility extends usable life across older system generations.
Thermal Control
The 120mm fan runs quietly at idle and increases speed under load. Thermal sensors help maintain safe operating temperatures during daily tasks.
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5. ARESGAME AGV Series 500W – Reliable PSU
ARESGAME AGV Series 500W
500W continuous output
80 Plus Bronze rated
Non modular design
Five year warranty
The ARESGAME AGV Series 500W delivers dependable power with Bronze efficiency. It offers 500W continuous output and includes OVP UVP OPP and SCP protections to keep your system safe.
Pros
- Bronze efficiency tier
- Quiet cooling fan
- Strong protection suite
- Multi year warranty
Cons
- Non modular cables
- Basic aesthetics
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All black cables reduce visual clutter compared to multi color alternatives. The 120mm ultra quiet fan ensures silent operation during office tasks while maintaining cool temperatures under load.
While non modular it suits standard ATX cases well. The five year warranty adds confidence and suggests better build quality than many budget options in this segment.
Buy this PSU for budget gaming or office PCs needing efficiency and longevity. It balances cost with reliable performance and strong protection for everyday use.
Efficiency and Build
80 Plus Bronze ensures around 85 percent efficiency reducing electricity waste and heat. The five year warranty indicates solid internal components and reliability.
Cable Quality
All black cables provide a cleaner look in visible cases. This detail improves aesthetics in builds where the PSU is partially visible.
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6. PSU for ATX 350W – Standard PSU
PSU for ATX 350W
350W power supply
HG2-6300P model
ROHS compliant
Standard ATX sizing
The PSU for ATX 350W HG2-6300P is a straightforward unit for basic systems. It delivers 350W with standard ATX sizing and complies with ROHS standards for safer manufacturing.
Pros
- Compliant with ROHS
- Standard ATX fit
- Budget friendly cost
- Simple design
Cons
- Limited specs provided
- No efficiency rating
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Its design suits basic desktops needing reliable power without advanced features. The unit fits most standard cases and provides necessary connectors for drives and motherboards.
Limited public specs make exact efficiency unclear but the model is known for basic stability. It lacks certifications found in higher tier models but serves well for low wattage needs.
Select this for repairs or replacements in older systems. It offers functional power delivery at a low cost for simple workstations or legacy PCs.
ROHS Compliance
ROHS compliance ensures the unit uses safer materials with fewer hazardous substances. This aligns with environmental standards and improves safety.
Standard Fit
Standard ATX dimensions ensure compatibility with most mid tower cases. This makes swapping units in existing systems straightforward.
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7. PC Power Supply 350W – Quiet PSU
PC Power Supply 350W
350W low energy
115/230V adjustable
Thermal fan control
ATX12V 2.31
This PC Power Supply 350W is optimized for low energy consumption desktops. It supports 115/230V manual switching and includes a thermal controlled fan for quiet operation.
Pros
- Low energy design
- Voltage adjustment
- Clear connector marks
- Fast installation
Cons
- Basic specs
- Generic branding
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Clear connector marks simplify installation reducing the risk of wiring errors. The 120mm fan ensures quiet operation during idle while cooling effectively under moderate loads.
It fits well for low wattage office PCs or basic home computers. The lack of detailed specs limits expectations but user feedback highlights its quiet performance.
Choose this PSU for quiet home builds where efficiency matters. It provides reliable power with minimal noise for standard office or media PCs.
Installation Ease
Clear connector marks allow quick and effective installation. This reduces setup time and potential errors during initial assembly.
Voltage Flexibility
Manual switching between 115 and 230V ensures compatibility across different power grids. This flexibility helps in regions with varying voltage standards.
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8. Antec BP350 Basiq – Trusted PSU
Antec BP350 Basiq
350W ATX12V
Basiq reliable design
24/4-Pin support
Standard ATX form
The Antec BP350 Basiq brings trusted brand reliability to budget builds. It offers 350W with ATX12V compliance and is built to satisfy entry level power users reliably.
Pros
- Proven brand history
- Solid reliability
- Entry level support
- Efficient daily use
Cons
- Older tech
- No modern certification
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Antec's experience shines in stable voltage regulation and protection systems. This unit excels in daily tasks and office PCs requiring consistent performance over time.
It lacks modern certifications but remains a dependable choice for low wattage systems. The 24/4-pin support ensures compatibility with both newer and older motherboards.
Select this PSU for budget systems valuing brand trust. It delivers solid performance and reliability at a competitive price point.
Brand Reliability
Antec has decades of experience in power supply manufacturing. This expertise ensures consistent quality and reliable power delivery in their units.
Compatibility
Support for 24/4-pin ensures it works with modern and legacy boards. This flexibility makes it a safe choice for various system builds.
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9. Antec Basiq BP350 – Compact PSU
Antec Basiq BP350
350WATT output
ATX12V V2.01
80mm quiet fan
Standard ATX form
The Antec Basiq BP350 delivers reliable 350W power with an 80mm fan. It is designed for standard ATX cases and supports V2.01 specs for broad motherboard compatibility.
Pros
- Small fan size
- Quiet operation
- Stable power
- Proven design
Cons
- Older fan tech
- No modern cert
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The 80mm fan runs quietly making it suitable for office PCs needing low noise. Its stable power delivery ensures your system boots and runs consistently over time.
While lacking modern certifications it remains a solid choice for low wattage builds. The compact fan design helps fit into tighter spaces within standard chassis.
Choose this for compact ATX builds valuing quiet performance. It balances stability and reliability for daily computing tasks without excess power.
Noise Performance
An 80mm quiet fan ensures low noise during daily use. This makes it a good choice for office or bedroom PCs.
Compatibility
ATX12V V2.01 ensures support for legacy and modern boards. This broad compatibility makes it versatile for upgrades or replacements.
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10. 600W Power Supply – High Wattage PSU
600W Power Supply
600W continuous output
80 Plus Gold rated
125mm FDB fan
Gaming compatibility
The 600W Power Supply provides headroom for future upgrades. It offers 80 Plus Gold efficiency and a 125mm FDB fan for quiet and stable operation.
Pros
- Higher wattage headroom
- Gold efficiency
- Quiet FDB fan
- Full voltage PFC
Cons
- Overkill for 350W needs
- Slightly higher price
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With 600W continuous output it handles higher TDP GPUs and CPUs better than 350W units. Full voltage PFC ensures stable power even with fluctuating grid inputs.
For pure 350W needs it may be overkill but offers better value for gaming PCs planning upgrades. The extra capacity ensures stable performance as you upgrade components.
Buy this PSU if you plan to upgrade your GPU later. It delivers efficient quiet power for current builds and headroom for future upgrades.
Efficiency and Noise
80 Plus Gold ensures around 90 percent efficiency reducing heat and power draw. The 125mm FDB fan operates quietly even under moderate loads.
Future Proofing
600W capacity allows for higher power GPUs without needing a new unit. This makes it a smart long term investment for growing systems.
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Buying Guide – How to Choose the Best 350W PSU
Selecting the right 350W PSU requires balancing form factor, efficiency, and protections. This guide covers key factors to consider for reliable performance.
Efficiency Certification
Efficiency ratings like 80 Plus Bronze or Gold tell you how much input power converts to useful output. Higher tiers waste less energy as heat keeping your system cooler.
Choose at least Bronze for daily use to reduce electricity bills and heat in compact cases.
Form Factor Compatibility
Ensure the PSU matches your case dimensions. ATX fits most towers while Flex ATX suits compact cases. Mini ITX designs often require specific low profile units.
Check your case manual for height and depth before purchasing to avoid fit issues.
Connector Types
Modern GPUs need PCIe 6+2pin connectors while motherboards need 24pin and CPU power. Ensure the PSU provides enough connectors for your drives and fans.
Modular designs help reduce clutter in small cases but may cost more than fixed cable units.
Protection Features
Look for protections like OVP UVP OPP and SCP to safeguard your hardware. These features prevent damage during power surges or short circuits.
Adequate protection ensures your system stays safe even during unstable power events.
Cooling Fan Size
Larger fans like 120mm or 125mm move more air at lower speeds reducing noise. Smaller fans may run louder or overheat under sustained load.
Prioritize larger fans for silent builds while ensuring thermal controls are present.
Warranty Coverage
A longer warranty indicates confidence in build quality. Units with 5 year coverage typically use higher grade capacitors and better protection circuits.
Always check warranty terms before buying to ensure long term support and reliability.
Brand Reputation
Established brands like Antec or Silverstone often provide better quality control and customer support. Lesser known brands may lack consistent testing or service.
Choose a brand with positive community reviews for reliability and support.
Voltage Support
Automatic voltage range supports 90-240V inputs ensuring global compatibility. Manual switches require setting the correct voltage which can lead to errors.
Auto voltage units are safer for travel or international regions with variable power.
How to Use and Care for Your 350W PSU
Always ground yourself before installing the PSU to prevent static damage. Connect the main ATX and CPU power cables securely before testing.
Use a surge protector to shield the PSU from voltage spikes. This extends its lifespan and protects sensitive components in your system.
Clean dust regularly with compressed air to maintain airflow. Overheating reduces efficiency and may shorten the unit's life.
Frequently Asked Questions
Is 350W enough for gaming?
350W suits entry level gaming with low TDP GPUs like GTX 1050. For higher performance cards you may need more headroom to avoid instability during load.
What does 80 Plus mean?
80 Plus certification ensures the PSU runs at least 80 percent efficient under load. This reduces wasted energy as heat keeping your PC cooler.
Do modular PSUs perform better?
Modular units help cable management but performance depends on internal components. Non modular designs can perform equally well if they use quality parts.
Can I use a 350W PSU in a gaming PC?
Yes for low TDP CPUs and GPUs like Ryzen APU builds. Ensure the PSU meets connector requirements for your GPU to avoid power issues.
How do I clean a PSU fan?
Use compressed air to blow dust out of the fan vents. Avoid spinning the fan blades by hand as this may damage the motor bearings.
Does PFC matter for efficiency?
Active PFC improves power factor and stabilizes voltage reducing energy waste. Passive PFC units may draw more power for the same output load.
Final Thoughts on Choosing the Best 350W PSU
We reviewed ten models offering efficient quiet power for 350W systems. Our top picks include Silverstone for compact Flex ATX builds and Thermaltake for budget value.
Prioritize efficiency certification and protections to ensure long term stability. Choose a form factor that matches your case to avoid compatibility issues.
Check current prices before buying as they change frequently. Verify connector availability and warranty terms to ensure the unit meets your specific needs today.