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ESGAMING 600W Non-Modular ATX Power or ESGAMING 300W Flex ATX Power? Which ESGAMING Model to Buy

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This esgaming 600w atx power supply vs tfx 300w esgaming flex comparison helps you pick the right unit. Both models share essential safety protections and voltage switching options. The main difference lies in their physical design and power output. One is a standard ATX unit with higher wattage, while the other is a compact Flex ATX model built for smaller cases. You need to match the form factor and power needs to your specific system build.

Key differences

AspectESGAMING 600W Non-Modular ATX Power SupplyESGAMING 300W Flex ATX Power Supply
Form FactorATXFlex ATX
Wattage600W300W
ModularityNon-ModularNot listed
Fan Size120mm80mm
Dimensions5.51 x 3.15 x 5.91 inches6.69 x 3.35 x 2.56 inches

Which one should you choose?

Choose ESGAMING 600W Non-Modular ATX Power Supply if

  • You need higher power for standard desktop components
  • You have a standard ATX case with space for a larger unit
  • You prefer a larger 120mm fan for cooling

Choose ESGAMING 300W Flex ATX Power Supply if

  • You are building a small form factor or mini ITX system
  • You require a Flex ATX compatible power supply
  • You need lower wattage for lightweight tasks like NAS use

Verdict: Choose the 600W ATX model if you are building a standard desktop that requires more power and space. Select the 300W Flex ATX unit if your case is compact and strictly requires a smaller form factor. Both provide necessary protections, but the form factor is the deciding factor.

ESGAMING 600W vs TFX 300W Comparison

Form Factor

Edge: ESGAMING 600W Non-Modular ATX Power Supply

The ESGAMING 600W Non-Modular ATX Power Supply uses a standard ATX form factor. Its dimensions are 5.51 inches in length, 3.15 inches in width, and 5.91 inches in height. This size fits most standard desktop cases. The ESGAMING 300W Flex ATX Power Supply uses a Flex ATX form factor. Its dimensions are 6.69 inches in length, 3.35 inches in width, and 2.56 inches in height. This smaller profile is designed for ultra-thin desktops, mini ITX models, and some small enterprise servers. You must choose the form factor that matches your case size. Product B is smaller, while Product A is standard.

Power Output

Edge: ESGAMING 600W Non-Modular ATX Power Supply

Power output is the most critical difference between these two units. The ESGAMING 600W Non-Modular ATX Power Supply provides 600W of total power. It delivers +12V at 45A, +5V at 20A, and +3.3V at 16A. This makes it suitable for systems with dedicated graphics cards and multiple drives. The ESGAMING 300W Flex ATX Power Supply provides 300W of total power. It is intended for lower-power builds like NAS units or basic office PCs. If you need to power a modern GPU or a high-end CPU, Product A is the only viable option due to its higher wattage.

Modularity

Edge: Tie

Cable management affects airflow and case aesthetics. The ESGAMING 600W Non-Modular ATX Power Supply is non-modular. It comes with pre-installed connectors, including a 24-pin main power cable, a 4+4-pin CPU cable, two 6+2-pin PCIe cables, four SATA cables, four PATA cables, and one FDD connector. You cannot remove cables you do not need. The ESGAMING 300W Flex ATX Power Supply is also non-modular. It includes a 24-pin main connector and a 12V P4 connector. Since both units are non-modular, you will manage full cable bundles in both cases. This round is a tie.

Cooling Fan

Edge: ESGAMING 600W Non-Modular ATX Power Supply

Both units use forced air ventilation to manage heat. The ESGAMING 600W Non-Modular ATX Power Supply features a large 120mm cooling fan. It is auto-thermally controlled, meaning it adjusts speed based on temperature. Larger fans typically move more air at lower speeds, which can reduce noise. The ESGAMING 300W Flex ATX Power Supply uses a smaller 80mm fan for forced air ventilation. The smaller fan may run at higher speeds to move the same amount of air, potentially creating more noise. The 120mm fan in Product A generally offers better thermal capacity for the higher wattage output.

Input Voltage

Edge: Tie

Both power supplies support manual input voltage switching. The ESGAMING 600W Non-Modular ATX Power Supply allows you to switch input voltage between 110V and 230V using a red button. This is useful if you move your computer to a region with different power standards. The ESGAMING 300W Flex ATX Power Supply also supports a 110/220V switch via a red button. Both units offer this flexibility, ensuring compatibility with various global power grids. Neither unit is specified as fully automatic, so you must manually adjust the switch. This feature is identical on both models.

Which ESGAMING PSU fits your build

Standard desktop builders needing high power

Our pick: ESGAMING 600W Non-Modular ATX Power Supply

You need a standard ATX form factor for a regular desktop case. This 600W unit provides ample power for modern components. It includes a 120mm fan for cooling and multiple PCIe connectors. The 110-230V switch allows flexible input voltage. It fits most mid-tower and full-tower cases without issue.

Mini ITX or ultra-thin case builders

Our pick: ESGAMING 300W Flex ATX Power Supply

You are building in a tight space like a mini ITX or ultra-thin desktop. This TFX Flex ATX unit is smaller, measuring 6.69 by 3.35 by 2.56 inches. It delivers 300W, which suits low-power systems, NAS, or small enterprise servers. The compact size is its primary advantage here.

Users prioritizing standard compatibility and connectors

Our pick: ESGAMING 600W Non-Modular ATX Power Supply

You want a straightforward installation with standard connectors. This model offers a 24-pin main power, 4+4-pin CPU, and two 6+2-pin PCIe connectors. It also includes SATA and PATA connections. The 120mm fan is larger than the 80mm fan in the smaller unit, potentially offering quieter operation in standard cases.

Those building compact NAS or server units

Our pick: ESGAMING 300W Flex ATX Power Supply

You are constructing a NAS or small server that requires a Flex ATX power supply. This 300W unit is specifically designed for such compact applications. It supports 110-230V input via a switch. The smaller 80mm fan fits within the limited airflow space of ultra-thin desktops and small form factor enclosures.

The products compared

ESGAMING 600W Non-Modular ATX Power Supply

Best for: standard ATX cases needing 600W

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 through a standard ATX form factor. It features a 120mm cooling fan that adjusts speed based on temperature. You get fixed cables including a 24-pin main connector, a 4+4-pin CPU connector, and two 6+2-pin PCIe connectors. The unit supports both 115V and 220V input via a physical switch. It includes comprehensive safety protections against voltage and current issues.

Pros

  • 600W total power output
  • 120mm auto-thermally controlled fan
  • Dual 6+2 pin PCIe connectors
  • 115V/220V input voltage switch

Cons

  • Non-modular design with fixed cables
  • No active fanless mode at low loads
  • Basic ATX form factor lacks compact TFX profile

Good fit if

  • You need 600W for mid-range builds
  • You prefer standard ATX cases
  • You want fixed cable management

Skip if

  • You require a fully modular PSU
  • You need a compact TFX form factor
  • You want silent operation at idle

Verdict: ESGAMING 600W Non-Modular ATX PSU is a solid choice for standard ATX cases needing reliable 600W output. It suits users who do not need modular cabling or compact dimensions.

ESGAMING 300W Flex ATX Power Supply

Best for: Compact NAS and mini ITX builds

Wattage
300W
Fan Size
80mm
Form Factor
Flex ATX
Dimensions
6.69 × 3.35 × 2.56 inches

View on Amazon: ESGAMING 300W Flex ATX Power Supply Affiliate link

This ESGAMING unit is a 300W Flex ATX power supply designed for compact builds. It measures 170x85x65mm and uses an 80mm fan for cooling. The unit supports 115/220V input via a switch. It includes standard protections like OVP and OCP. You should choose this model if you need a low-wattage option for NAS or mini ITX systems where space is limited.

Pros

  • Compact 170x85x65mm Flex ATX form factor
  • 300W output capacity for low-power builds
  • Includes OVP, UVP, OCP, OPP, SCP, and OTP protections
  • Split-able 24-pin and 8-pin connectors

Cons

  • Low 300W wattage limits high-performance components
  • Small 80mm fan may be louder under load
  • Manual 115/220V switch requires physical adjustment

Good fit if

  • You are building a NAS or mini ITX system
  • You need a power supply under 300W
  • You have limited space for a Flex ATX PSU

Skip if

  • You require more than 300W of power
  • You are building a standard ATX desktop
  • You prefer fully modular cable management

Verdict: ESGAMING 300W Flex ATX PSU fits users with small form factor builds like NAS or mini ITX cases. It provides essential protections in a compact size but lacks the power for gaming rigs.

Specifications side by side

Spec ESGAMING 600W Non-Modular ATX Power Supply ESGAMING 300W Flex ATX Power Supply
Wattage 600W 300W
Modularity Non-Modular not stated
PCIe Connector Type 6+2 pin not stated
Fan Size 120mm 80mm
Form Factor ATX Flex ATX
Dimensions 5.51 × 3.15 × 5.91 inches 6.69 × 3.35 × 2.56 inches
Size 600W not stated
Color Black not stated
Model 600W Non-Modular TFX-300W

Frequently asked questions

Can the ESGAMING 300W Flex ATX PSU run a standard gaming PC?

No. The 300W Flex ATX model is designed for compact NAS and mini ITX builds. It lacks the power needed for gaming rigs. Standard gaming PCs typically require more wattage than this unit provides. You should choose the 600W ATX model if you are building a gaming computer. This ensures your components receive sufficient energy.

What is the main difference between the ESGAMING 600W and 300W models?

The primary difference is form factor and output power. The 600W unit uses a standard ATX design, while the 300W uses a Flex ATX layout. The 600W model offers higher wattage for standard desktops. The 300W model provides essential protections in a smaller size. Your choice depends on your case size and power requirements.

Does the ESGAMING 600W Non-Modular PSU fit in small cases?

It likely will not. The 600W Non-Modular ATX unit measures 5.51 by 3.15 by 5.91 inches. This standard ATX size fits most regular desktop cases. It is not suitable for compact builds. If you have a small form factor case, the 300W Flex ATX model is the better option due to its smaller dimensions.

Is the ESGAMING 300W Flex ATX power supply non-modular?

Yes. The ESGAMING 300W Flex ATX power supply is non-modular. This means all cables are permanently attached to the unit. You cannot detach or remove any cables. This design helps save space in compact builds. It is suitable for users who need a fixed cable setup in a small chassis.

Which ESGAMING PSU is best for a standard desktop computer?

The ESGAMING 600W Non-Modular ATX Power Supply is the best choice. It provides reliable 600W output for standard ATX cases. This model suits users who do not need modular cabling. It offers ample power for modern components. The 300W Flex ATX model is too low in wattage for most standard desktop builds.

Can I use the ESGAMING 300W Flex ATX in a regular tower case?

It is not recommended. The 300W Flex ATX unit is designed for compact NAS and mini ITX builds. Regular tower cases usually require a standard ATX form factor. The 600W ATX model fits these cases properly. Using the 300W unit in a standard case may cause compatibility issues with mounting and power delivery.

See also