Be Quiet! or FSP? PC Power Supplies Compared in 2026
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
We compare the Be Quiet! CC-4420 cable against the FSP Group Mini ITX power supply to clarify your be quiet vs FSP PC power supply choice. Both items target compact builds and prioritize low noise through small form factors. The main difference lies in their function: one is a dedicated extension cable for CPU power, while the other is a complete 400W power supply unit. You must decide if you need a component to extend an existing connection or a full unit to power your system.
Key differences
| Aspect | Be Quiet! 0.45 m CPU Power Cable | FSP 400W Gold Flex ATX Mini ITX Power Supply |
|---|---|---|
| Product Type | CPU Power Cable | Power Supply Unit |
| Wattage | not listed | 400W |
| Efficiency Rating | not listed | 80 Plus Gold |
| Form Factor | not listed | Mini ITX / Flex ATX |
Which one should you choose?
Choose Be Quiet! 0.45 m CPU Power Cable if
- You already have a power supply and need a short 0.45 m cable to reach your CPU socket.
- You prefer a dedicated cable solution from Be Quiet! for a specific build layout.
Choose FSP 400W Gold Flex ATX Mini ITX Power Supply if
- You need a complete power source for a Mini ITX system.
- You want high efficiency with an 80 Plus Gold certification for a 400W load.
- You require a unit with a 4 cm fan for quiet operation in a small case.
Verdict: The Be Quiet! cable is a niche accessory for extending connections, whereas the FSP unit is a comprehensive power solution. Choose the FPS power supply if you need to build or power a Mini ITX system. Select the Be Quiet! cable only if your existing unit meets your power needs and you simply need a connector extension.
Be Quiet vs FSP PSU Specs
efficiency rating
The FSP 400W Gold Flex ATX power supply carries an 80 Plus Gold efficiency rating, ensuring power conversion exceeds 90% under typical loads. This high efficiency reduces waste heat and improves overall system energy usage. The Be Quiet! CC-4420 cable does not list an efficiency rating in its specifications. Cables generally do not have efficiency ratings, as they simply transmit power. Therefore, the FSP unit offers a verified efficiency standard that the cable does not provide. This makes the FSP unit superior for energy-conscious builders who prioritize certified efficiency metrics in their power supply selection.
form factor
The FSP power supply is designed for Mini ITX systems, with dimensions of 1.6 inches in width, 3.25 inches in height, and 5.9 inches in length. This compact form factor allows it to fit into small chassis. The Be Quiet! CC-4420 is a CPU power cable, not a power supply unit. Its specifications list dimensions of 9.06 inches in length, 3.54 inches in width, and 1.18 inches in height. Since they are different product categories, a direct form factor comparison is difficult. However, the FSP unit is explicitly built for Mini ITX compatibility, giving it a clear advantage for small form factor builds.
wattage
The FSP power supply provides 400W of power output, suitable for low-power Mini ITX systems or specific industrial applications. This wattage is clearly stated in its key specifications. The Be Quiet! CC-4420 is a passive cable and does not have a wattage rating. Cables transmit power rather than generate it, so they do not have wattage specifications. The FSP unit offers a defined power capacity, while the Be Quiet! cable relies on the power supply it connects to for its power limits. The FSP unit is superior for defining system power capabilities.
connectivity
The FSP power supply includes a 1x PCIe 6+2 pin connector for VGA cards, providing direct power to graphics components. This connector type is standard for modern GPUs. The Be Quiet! CC-4420 is a CPU power cable, likely connecting to the motherboard CPU power socket. The data does not specify the exact connector type for the cable, only its model number BC060. The FSP unit offers explicit PCIe connectivity, which is a valuable feature for systems requiring GPU power. The Be Quiet! cable serves a different purpose, connecting to the CPU. The FSP unit has a clearer connectivity advantage for GPU support.
reliability features
The FSP power supply includes several reliability features, such as a resettable power shut down, 100% burn-in testing at high ambient temperatures, and an MTBF of 100,000 hours at 25 degrees Celsius. It also undergoes 100% Hi-pot testing. The Be Quiet! CC-4420 cable lists reliability performance as a feature but provides no specific technical data on testing, MTBF, or protection mechanisms. The FSP unit offers detailed, quantifiable reliability metrics that you can verify. The Be Quiet! cable lacks specific data on its internal testing or lifespan. The FSP unit is superior for proven reliability standards.
Choose your Be Quiet or FSP PSU
Users needing a replacement CPU cable
You need the Be Quiet! BC060 cable for your build. It measures 230 mm in length and weighs just 3 ounces. This compact accessory fits neatly into tight cases. Choose this option if you are replacing a missing or damaged power connection rather than buying a full unit.
Builders seeking high efficiency in small form factors
The FSP 400W Gold unit delivers 80 Plus Gold certification. This means efficiency exceeds 90%, reducing heat and energy waste. Its 400W capacity and 4 cm fan support low noise. Select this power supply if you require a certified, efficient energy source for a Mini ITX system.
Users requiring a complete power source
You need a full power supply, not just a cable. The FSP model provides 400W of power with a PCIe 6+2 pin connector. It includes resettable shutdown features and burn-in testing. Pick this product if you need a reliable, complete unit to power your computer components.
The products compared
Be Quiet! 0.45 m CPU Power Cable
Best for: compact cases needing short CPU cables
- Dimensions
- 9.06 × 3.54 × 1.18 inches
- Weight
- 3 ounces
View on Amazon: Be Quiet! 0.45 m CPU Power Cable Affiliate link
This is a Be Quiet! BC060 CPU power cable designed for reliable performance. It measures 0.45 meters in length, which is approximately 17.7 inches. The cable features a sleek black design with dimensions of 230 mm x 86 mm x 25 mm. Weighing only 3 ounces, it is lightweight and easy to manage. This cable suits builders who need a specific length for their CPU power connection.
Pros
- 0.45 m cable length
- Sleek black design
- Lightweight at 3 ounces
- Reliable performance
Cons
- Short 0.45 m length may not reach all cases
- No mention of modular connector type
- Fixed length limits flexibility
Good fit if
- You need a short CPU power cable
- You prefer a black cable for aesthetics
- You have a compact case with short distances
Skip if
- You need a longer cable for larger cases
- You require a specific connector type not listed
- You want a modular cable solution
Verdict: Be Quiet! BC060 CPU Power Cable is a short, lightweight cable for compact builds. It fits users who need a 0.45 m length and black aesthetics.
FSP 400W Gold Flex ATX Mini ITX Power Supply
Best for: Small form factor builds needing high efficiency
- Wattage
- 400W
- Efficiency Rating
- 80 Plus Gold
- PCIe Connector Type
- 6+2 pin
- Fan Size
- 4 cm
- Form Factor
- Mini ITX
- Dimensions
- 5.9 × 1.6 × 3.25 inches
View on Amazon: FSP 400W Gold Flex ATX Mini ITX Power Supply Affiliate link
This FSP unit is a Mini ITX power supply rated at 400W with 80 Plus Gold efficiency. It measures 5.9 inches long and uses a 4 cm fan. The design includes a PCIe 6+2 pin connector for graphics cards. It targets small form factor builds where space is tight and high efficiency is required for lower heat output.
Pros
- 80 Plus Gold efficiency rating exceeds 90%
- Compact Mini ITX form factor fits small cases
- Includes a PCIe 6+2 pin connector for VGA cards
- Low ripple and noise for stable power delivery
Cons
- 400W wattage limits compatibility with high-end GPUs
- Small 4 cm fan may produce higher noise under load
- Bulkier dimensions compared to standard ATX units
Good fit if
- You are building a Mini ITX PC
- You need 80 Plus Gold efficiency in a small case
- You require a dedicated PCIe connector for your graphics card
Skip if
- You need more than 400W of power
- You prefer a standard ATX form factor
- You want a larger fan for quieter operation
Verdict: FSP 400W Mini ITX Gold PSU is a solid option for small builds. It fits users who need high efficiency in a compact space but can accept the power and noise trade-offs.
Specifications side by side
| Spec | Be Quiet! 0.45 m CPU Power Cable | FSP 400W Gold Flex ATX Mini ITX Power Supply |
|---|---|---|
| Wattage | not stated | 400W |
| Efficiency Rating | not stated | 80 Plus Gold |
| PCIe Connector Type | not stated | 6+2 pin |
| Fan Size | not stated | 4 cm |
| Form Factor | not stated | Mini ITX |
| Dimensions | 9.06 × 3.54 × 1.18 inches | 5.9 × 1.6 × 3.25 inches |
| Weight | 3 ounces | 2 pounds |
| Size | 230 mm x 86 mm x 25 mm | 400W_Gold |
| Color | Black | not stated |
| Model | BC060 | FSP400-60FGGBA |
Frequently asked questions
Is Be Quiet better than FSP for small form factor builds?
It depends on whether you need a cable or a full power supply. The Be Quiet! BC060 is a short CPU power cable for compact cases. The FSP 400W Gold is a complete Mini ITX power supply. Choose Be Quiet if you only need a replacement cable. Choose FSP if you need a complete unit for your system.
Does FSP offer better efficiency than Be Quiet in this comparison?
The FSP 400W Gold Flex ATX power supply carries an 80 Plus Gold efficiency rating. This ensures power conversion exceeds 90% under typical loads. The Be Quiet! BC060 is a passive cable and does not have an efficiency rating. If high efficiency is your priority, the FSP unit is the clear choice for your power delivery needs.
What is the size difference between the Be Quiet and FSP options?
The Be Quiet! BC060 cable measures 230 mm in length and weighs 3 ounces. It is designed to fit neatly into tight spaces. The FSP 400W power supply is larger, measuring 5.9 inches in length. It weighs 2 pounds. The cable is significantly smaller and lighter than the complete power supply unit.
Can I use the Be Quiet cable with an FSP power supply?
Yes, you can. The Be Quiet! BC060 is a CPU power cable. It connects your power supply to your motherboard. The FSP 400W Gold is a complete power supply unit. You can use this cable with the FSP unit if you need a shorter connection for your specific case layout. They are compatible components.
Which option is quieter for a compact PC build?
Both target low noise through small form factors. The FSP 400W Gold Flex ATX power supply is designed for small builds. It may have noise trade-offs due to its compact size. The Be Quiet! BC060 is a cable. It has no moving parts, so it produces no noise. It is inherently silent for your system.
Is the FSP 400W suitable for Mini ITX cases?
Yes, the FSP 400W Gold Flex ATX is explicitly a Mini ITX power supply. It fits users who need high efficiency in a compact space. Its dimensions are 1.6 inches wide and 3.25 inches high. This form factor is designed specifically for small form factor builds that require reliable power delivery.
What is the main difference between these two products?
The main difference is their function. The Be Quiet! BC060 is a 0.45 m CPU power cable. It is an accessory for existing systems. The FSP 400W Gold is a complete power supply unit. It provides power to the entire system. One is a component, while the other is a complete device.