ESGAMING 600W Non-Modular ATX Power vs ESGAMING 300W Fully Modular Flex: Spec Comparison
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This comparison covers the esgaming 600w atx power supply vs fully modular 300w itx flex atx 1u. Both units offer essential safety protections and stable power delivery for their respective builds. The main difference lies in their physical design and capacity. One is a standard ATX unit with higher wattage, while the other is a compact Flex form factor designed for small enclosures. You need to match the power supply to your case size and power requirements.
Key differences
| Aspect | ESGAMING 600W Non-Modular ATX Power Supply | ESGAMING 300W Fully Modular Flex ATX Power Supply |
|---|---|---|
| Form Factor | ATX | Flex ATX / 1U |
| Wattage | 600W | 300W |
| Modularity | Non-Modular | Fully Modular |
| Fan Size | 120mm | 40mm |
| Height | 5.91 inches | 1.61 inches |
Which one should you choose?
Choose ESGAMING 600W Non-Modular ATX Power Supply if
- You need higher power output for a standard desktop PC
- Your case supports standard ATX dimensions
- You prefer a larger fan for potentially quieter operation
Choose ESGAMING 300W Fully Modular Flex ATX Power Supply if
- You are building in a small ITX or rackmount enclosure
- You need fully modular cables for clean cable management
- Your system requires less than 300 watts of power
Verdict: Choose the 600W ATX unit if you have a standard case and need more power for components. The 300W Flex unit is the correct choice for small form factor builds where space is limited and modular cables are preferred.
600W ATX vs 300W Flex PSU
Form Factor
The ESGAMING 600W Non-Modular ATX Power Supply uses a standard ATX form factor. It measures 5.51 inches in length, 3.15 inches in width, and 5.91 inches in height. This size fits standard desktop computer cases. The ESGAMING 300W Fully Modular Flex ATX Power Supply is built for 1U rackmount enclosures. It measures 6.5 inches in length, 3.19 inches in width, and 1.61 inches in height. This low profile design is ideal for servers and network equipment. You must choose the form factor that matches your case type. Standard ATX cases cannot fit the 1U Flex unit. Flex cases cannot fit the standard ATX unit. This is a critical compatibility difference.
Modularity
Cable management is a major factor in build quality and airflow. The ESGAMING 600W Non-Modular ATX Power Supply is non-modular. All cables are permanently attached to the unit. You must route every cable, even those you do not use. This can lead to clutter inside your case. The ESGAMING 300W Fully Modular Flex ATX Power Supply is fully modular. You only connect the cables required for your components. This allows for cleaner cable routing and better airflow. It is easier to maintain and upgrade in tight spaces. If you value a clean build, the modular option is superior. Non-modular units are simpler but less flexible.
Power Output
Power capacity determines what components you can run. The ESGAMING 600W Non-Modular ATX Power Supply delivers 600 watts of total power. The +12V rail provides 45 amps, which is crucial for modern CPUs and GPUs. The +3.3V rail offers 16 amps, and the +5V rail offers 20 amps. This unit supports high-performance desktop gaming or workstation builds. The ESGAMING 300W Fully Modular Flex ATX Power Supply delivers only 300 watts. It is designed for low-power rackmount systems, servers, or light ITX builds. It cannot support high-end graphics cards or power-hungry processors. You need double the power for demanding tasks.
Cooling System
Thermal management affects noise levels and component lifespan. The ESGAMING 600W Non-Modular ATX Power Supply uses a large 120mm cooling fan. This larger fan can move more air at lower speeds. It is auto-thermally controlled, meaning it adjusts speed based on heat. This typically results in quieter operation under normal loads. The ESGAMING 300W Fully Modular Flex ATX Power Supply uses a small 40mm double ball-bearing fan. Small fans must spin faster to move the same amount of air. This can generate more noise, especially under load. The 40mm fan is also built-in and not user-replaceable easily. For quiet desktop use, the 120mm fan is a clear advantage.
Input Voltage Range
Input voltage compatibility affects global usability and stability. The ESGAMING 300W Fully Modular Flex ATX Power Supply features Full Range Active PFC. It supports an input voltage range of 90-264V. This allows it to work in regions with unstable power grids or different standard voltages without manual switching. The ESGAMING 600W Non-Modular ATX Power Supply has a manual voltage switch. You must physically switch the input voltage between 110V and 230V using a red button. If you move the unit between regions, you must remember to change the switch. Failure to do so can damage the unit. The automatic PFC on the Flex model offers greater convenience and safety.
Which ESGAMING PSU fits your build
Standard desktop PC builders
You need a standard ATX unit for a regular tower case. This 600W model provides higher wattage for modern components. It includes a 120mm fan for cooling and fixed cables. The non-modular design keeps costs low while delivering reliable power for everyday gaming or work tasks.
Small form factor or server users
You are building a 1U rackmount or mini-ITX system. This 300W Flex ATX unit fits tight spaces with its slim profile. Full modularity lets you connect only what you need. It supports 24/7 operation with active PFC, making it ideal for servers or compact network equipment.
Users needing flexible cabling
Clean cable management is your priority. This fully modular unit lets you attach only the cables required for your specific components. This reduces clutter inside small cases. It also offers a 40mm fan for efficient cooling in confined spaces, ensuring quiet operation without excess wiring.
The products compared
ESGAMING 600W Non-Modular ATX Power Supply
Best for: Standard ATX builds needing high wattage
- Wattage
- 600W
- Modularity
- Non-Modular
- PCIe Connector Type
- 6+2 pin
- Fan Size
- 120mm
- Form Factor
- ATX
- Dimensions
- 5.51 × 3.15 × 5.91 inches
View on Amazon: ESGAMING 600W Non-Modular ATX Power Supply Affiliate link
This ESGAMING unit delivers 600W of power via a standard ATX form factor. It features a 120mm auto-thermally controlled fan for quiet operation. The design is non-modular, meaning all cables are permanently attached. You get fixed connectors including a 24-pin main, CPU, and PCIe links. It supports 110-230V input switching. This model suits builders who prioritize raw wattage and standard ATX compatibility over cable management flexibility.
Pros
- 600W total power output
- 120mm auto-thermally controlled fan
- Full safety protection suite
- Fixed 24-pin, CPU, and PCIe connectors
Cons
- Non-modular design limits cable management
- Fixed cables add bulk to builds
- No 8-pin EPS CPU connector option
Good fit if
- You need high wattage for standard ATX cases
- You prefer fixed cables for simplicity
- You want strong safety protections
Skip if
- You require modular cable management
- You are building in a small ITX case
- You need flexible connector options
Verdict: ESGAMING 600W Non-Modular ATX PSU is a solid choice for standard ATX builds where high wattage matters more than cable flexibility. It fits users who value simplicity and robust safety features over aesthetic cable management.
ESGAMING 300W Fully Modular Flex ATX Power Supply
Best for: Compact 1U server and Mini-ITX builds
- Wattage
- 300 W
- Modularity
- Fully Modular
- PCIe Connector Type
- 6+2 pin
- Fan Size
- 40 mm, 80 mm
- Form Factor
- Flex ATX
- Power Factor Correction
- Active PFC
View on Amazon: ESGAMING 300W Fully Modular Flex ATX Power Supply Affiliate link
This ESGAMING unit is a 300W fully modular power supply designed for 1U, Flex ATX, and Mini-ITX systems. It features a compact 3.19 by 6.5 inch footprint and a 40mm double ball-bearing fan for quiet operation. The unit supports 24/7 use with active PFC and includes essential safety protections like overvoltage and short circuit protection. It suits users building compact servers or network equipment who need a reliable, space-saving power solution.
Pros
- Fully modular design reduces cable clutter
- Compact 3.19 by 6.5 inch form factor fits 1U enclosures
- 40mm double ball-bearing fan with thermal speed control
- Includes 20+4pin, 8pin, PCIe, SATA, and Molex connectors
Cons
- Low 300W output limits high-power components
- Small 40mm fan may be louder under heavy load
- Limited to Flex ATX and 1U form factors
Good fit if
- You need a compact power supply for a 1U server or network rack
- You are building a Mini-ITX system with low power requirements
- You want to minimize cable clutter with fully modular connectors
Skip if
- You require more than 300W of power for high-end GPUs
- You are building a standard ATX desktop tower
- You need a larger 120mm fan for quieter operation
Verdict: ESGAMING 300W Fully Modular Flex ATX PSU is a specialized power solution for compact 1U or Mini-ITX builds. It fits users who prioritize space efficiency and modular cabling over raw power output.
Specifications side by side
| Spec | ESGAMING 600W Non-Modular ATX Power Supply | ESGAMING 300W Fully Modular Flex ATX Power Supply |
|---|---|---|
| Wattage | 600W | 300 W |
| Modularity | Non-Modular | Fully Modular |
| PCIe Connector Type | 6+2 pin | 6+2 pin |
| Fan Size | 120mm | 40 mm, 80 mm |
| Form Factor | ATX | Flex ATX |
| Power Factor Correction | not stated | Active PFC |
| Dimensions | 5.51 × 3.15 × 5.91 inches | 6.5 × 3.19 × 1.61 inches |
| Weight | not stated | 2 pounds |
| Size | 600W | not stated |
| Color | Black | not stated |
| Model | 600W Non-Modular | 1U 300W |
Frequently asked questions
Which PSU is better for a standard desktop tower?
The ESGAMING 600W Non-Modular ATX Power Supply is the better choice for standard desktop towers. It features a standard ATX form factor that fits typical cases. This model provides 600W of power, which supports higher wattage needs. It is ideal if you do not need cable flexibility.
Can the 300W unit fit in a Mini-ITX case?
Yes, the ESGAMING 300W Fully Modular Flex ATX Power Supply is designed for compact builds. It uses a Flex ATX form factor suitable for Mini-ITX and 1U server cases. Its slim height of 1.61 inches allows it to fit into tight spaces where standard ATX units cannot.
Does the 600W model have modular cables?
No, the ESGAMING 600W Non-Modular ATX Power Supply does not have modular cables. It is a non-modular unit with fixed cables. This design offers simplicity and robust safety features but requires managing all attached cables during installation.
Is the 300W PSU fully modular?
Yes, the ESGAMING 300W Fully Modular Flex ATX Power Supply is fully modular. This means you can attach only the cables you need. This feature is useful for compact builds where cable clutter can obstruct airflow or fit.
What are the dimensions of the 600W power supply?
The ESGAMING 600W Non-Modular ATX Power Supply measures 5.51 inches in length, 3.15 inches in width, and 5.91 inches in height. These dimensions align with the standard ATX form factor. It is designed to fit inside standard desktop computer cases.
How heavy is the 300W Flex unit?
The ESGAMING 300W Fully Modular Flex ATX Power Supply weighs 2 pounds. It measures 6.5 inches in length, 3.19 inches in width, and 1.61 inches in height. This lightweight and compact design supports its use in small form factor systems.
Which unit provides more wattage for components?
The ESGAMING 600W Non-Modular ATX Power Supply provides more wattage. It offers 600W of output compared to the 300W model. This makes it suitable for builds with power-hungry components, whereas the 300W unit is intended for lower-power compact systems.