Apevia SFX 400W Power Supply Review: Who It Fits and Who Should Skip It
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This apevia sfx ap400w mini itx solution review covers the Apevia SFX 400W Power Supply. It is a compact unit designed for small form factor builds. The two specs that define this model are its 400W output capacity and its SFX form factor dimensions. It measures just 4 inches wide and 2.5 inches high. This size allows it to fit into tight cases where standard ATX units will not. The 80mm fan helps manage heat in confined spaces. You get a dedicated 12V rail for modern components. This power supply targets users who need reliable power in a small package.
What stands out
- 400W total power output with a 28A +12V rail
- Compact SFX dimensions: 125mm x 100mm x 63.5mm
- 80mm automatically thermal sensing fan for cooling
- Includes 6/8pin PCIe connector for graphics cards
- All cables are sleeved for a cleaner build
Who it fits
Good fit for
This power supply suits Mini ITX builders who need a reliable, low-profile unit. It fits users with modest GPU requirements, thanks to the single 6/8pin PCIe connector. The 400W capacity is sufficient for entry-level to mid-range systems. If you are building a compact office PC or a small home theater PC, this unit provides the necessary connectors. The 80mm fan ensures adequate airflow in tight cases. You get a stable 12V rail for CPU and GPU power needs.
Who should skip it
You should look at another option if you plan to use high-end graphics cards. This unit has only one 6/8pin PCIe connector. It cannot support dual GPU setups or high-power cards that need additional connectors. The 400W limit is also too low for heavy gaming or workstation tasks. If you need more SATA or Molex connectors, this unit offers limited options. The 80mm fan may be louder under load than larger fans. Users requiring high wattage or multiple PCIe connectors will find this insufficient.
Verdict: The Apevia SFX 400W is a solid choice for small form factor builds with modest power needs. It delivers reliable performance in a compact package for entry-level systems.
Key specs explained
Wattage: 400W
This rating indicates the maximum power the unit can deliver to your components. A 400W output is suitable for entry-level builds with low-power CPUs and integrated graphics. It may struggle with high-end discrete GPUs. Check your system’s total power draw against this limit to ensure stability under load.
Fan Size: 80mm
The cooling solution uses an 80mm fan, which is smaller than the standard 120mm fans found in larger units. Smaller fans can spin faster to move air, which may increase noise levels under heavy loads. This size is necessary to fit the compact SFX chassis while maintaining adequate airflow for internal components.
PCIe Connector Type: 6/8pin
The unit includes a 6/8pin PCIe connector for powering graphics cards. This cable allows you to connect mid-range GPUs that require external power. It ensures your video card receives the necessary voltage. Verify your specific GPU’s power requirements to confirm this single connector is sufficient for your hardware configuration.
Form Factor: Mini ITX
This specification refers to the physical size and mounting standard of the power supply. It is designed to fit into small form factor cases, such as Mini ITX or Micro ATX builds. The compact dimensions allow for tighter system layouts. Ensure your case supports this specific form factor before purchasing to guarantee proper installation.
Design and build specs
According to the listing, this unit measures 125mm by 100mm by 63.5mm. That translates to roughly 4.92 inches in length, 3.94 inches in width, and 2.5 inches in height. It weighs 2.03 pounds. These dimensions confirm its SFX form factor. This size allows it to fit into Mini ITX cases that support SFX power supplies. The compact footprint is essential for tight builds where space is limited.
The listing notes that all cables are sleeved. This detail affects the finish and cable management. Sleeved cables often look cleaner and may be more durable than standard jacketed wires. You will need to verify that your case has enough room for the cable length and thickness.
Cooling is handled by a single 80mm fan. This fan is automatically thermal sensing. It likely runs slower or stops at low loads to reduce noise. The small fan size means it may spin faster under heavy load compared to larger fans. This choice prioritizes space savings over quiet operation. The layout includes one 20+4 pin main connector, one 4 pin 12V connector, and one 6/8 pin PCIe connector. This configuration suits systems with modest power needs. The build focuses on fitting into small cases rather than high-end customization.
Setup and everyday use
Installation begins with verifying that your case supports the SFX form factor. The unit measures 125mm by 100mm by 63.5mm, which fits standard small form factor enclosures. You will need to connect the 20+4 pin main power cable to your motherboard. This connector provides the primary power link for your system components.
Next, attach the 4 pin 12V peripheral connector. This cable supports older storage devices or auxiliary fans that require direct 12V input. For storage drives, you have two SATA connectors available. These are sufficient for standard hard drives or solid-state drives in a minimal build. You also have two 4 pin Molex connectors for additional peripherals if your case requires them. A single floppy connector is included, though this is rarely needed in modern builds.
If you install a discrete graphics card, you must use the single 6/8 pin PCIe connector. This single rail limits the power available to the GPU. You should ensure your graphics card does not exceed the power headroom provided by this single connector. The unit uses an 80mm fan with automatic thermal sensing. This means the fan speed adjusts based on internal temperature. In daily use, this provides passive cooling at low loads and active cooling when the system works harder. The all-sleeved cables help with cable management in tight spaces. Ensure your CPU does not draw excessive power, as the 12V rail is rated for 28A. This setup is best for users who prioritize compact size over high-end expandability.
Before you buy this unit
You should verify that your case supports the SFX form factor before purchasing. This unit measures 125mm by 100mm by 63.5mm. It is designed for Mini ITX systems. You must check that your motherboard accepts the 20+4 pin main power connector. Your CPU requires a 4 pin 12V connector. Any discrete GPU needs a 6 or 8 pin PCIe connector. This power supply provides limited connectors. You have two SATA and two 4 pin Molex outputs. You may need adapters if you have many drives. The 80mm fan is automatically thermal sensing. You do not need to adjust fan speeds manually. This model suits entry-level builds with low-power components. It may not support high-end discrete GPUs. Compare this unit with other 400W options. Consider larger wattages if your system demands more power. Ensure your total power draw stays within the 400W limit.
Check before you buy
- Confirm your case supports SFX form factor dimensions.
- Check motherboard has 20+4 pin main power socket.
- Ensure CPU connector matches the 4 pin 12V cable.
- Verify GPU needs match the 6 or 8 pin PCIe cable.
The product at a glance
Apevia SFX 400W Power Supply
Best for: Mini ITX builds with low power needs
- Wattage
- 400W
- PCIe Connector Type
- 6/8pin PCIe
- Fan Size
- 80mm
- Form Factor
- Mini ITX
- Dimensions
- 5 × 4 × 2.5 inches
- Weight
- 2.03 pounds
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The Apevia SFX-AP400W is a 400W power supply designed for Mini ITX and Micro ATX builds. It features an 80mm thermal-sensing fan and fully sleeved cables. The unit measures 125 x 100 x 63.5 mm and weighs 2.03 pounds. It provides a 20+4 pin main connector, a 4 pin 12V connector, and a 6/8 pin PCIe connector. This compact unit suits small form factor PCs with moderate power needs.
Pros
- Compact 125mm length fits Mini ITX cases
- Fully sleeved cables for clean builds
- 80mm fan with automatic thermal sensing
- Includes 6/8 pin PCIe connector
Cons
- Limited to 2 SATA connectors
- Only 2 Molex connectors available
- Single 4 pin Floppy connector
Good fit if
- You are building a Mini ITX PC
- You need a compact 400W power solution
- You want sleeved cables for aesthetics
Skip if
- You require more than 2 SATA drives
- You need high-end GPU power connectors
- You are building a high-wattage system
Verdict: Apevia SFX 400W Mini ITX PSU is a compact option for Mini ITX builds. It fits users who need a small form factor with basic connectivity.
Specifications side by side
| Spec | Apevia SFX 400W Power Supply |
|---|---|
| Wattage | 400W |
| PCIe Connector Type | 6/8pin PCIe |
| Fan Size | 80mm |
| Form Factor | Mini ITX |
| Dimensions | 5 × 4 × 2.5 inches |
| Weight | 2.03 pounds |
| Model | SFX-AP400W |
Frequently asked questions
Is the Apevia SFX 400W good for gaming?
This unit is best for Mini ITX builds with low power needs. Its 400W output supports entry-level systems with integrated graphics. High-end discrete GPUs will likely exceed this capacity. You should skip this model if you plan to run demanding games with powerful graphics cards. It is designed for basic connectivity and compact cases.
What are the exact dimensions of this power supply?
The Apevia SFX 400W measures 4 inches in width, 2.5 inches in height, and 5 inches in length. These compact dimensions confirm its SFX form factor. The unit weighs 2.03 pounds. You must ensure your small form factor case can accommodate these specific measurements before installation.
Does this PSU fit in standard Mini ITX cases?
Yes, this unit is designed specifically for Mini ITX systems. Its SFX form factor allows it to fit standard small form factor enclosures. You need to verify that your case supports the SFX standard. The compact size makes it suitable for users who need a small footprint for their build.
What is the maximum wattage of the Apevia SFX?
The maximum wattage is 400W. This rating indicates the highest power the unit can deliver to your components. This output is suitable for entry-level builds with low-power CPUs. It may struggle with high-end discrete GPUs. You should calculate your total system power draw to ensure it stays within this limit.
Who is this power supply best suited for?
This power supply is best for Mini ITX builds with low power needs. It fits users who require a compact option with basic connectivity. It is ideal for entry-level systems that do not demand high wattage. If you need a small form factor solution for light computing, this model is a viable choice.
Is the Apevia SFX 400W quiet?
The provided data does not specify the noise level or fan characteristics of this unit. You should check the manufacturer’s specifications for details on acoustic performance. Generally, SFX units vary in noise output based on load and fan design. Review the full product listing for any additional technical details regarding sound.
Can I use this for a workstation build?
This unit is designed for Mini ITX builds with low power needs. Its 400W output may not support heavy workstation tasks requiring high-end GPUs. It is suitable for entry-level systems with integrated graphics. You should verify that your workstation components do not exceed the 400W limit before purchasing.