GAMEMAX GT-300W 300W TFX Power Supply

GameMax GT-300W | Compact TFX Power Supply for Slim PCs

The GameMax GT-300W is a 300W TFX power supply designed for small form factor desktops and slim PC builds. This 80 Plus Bronze certified PSU delivers stable, efficient power with active PFC and comprehensive protection features, making it an ideal replacement for compact systems where space and quiet operation are priorities.

Slim Specs Table

Efficient Power for Compact Builds

The GT-300W’s 80 Plus Bronze certification ensures reduced energy consumption and lower heat output compared to standard PSUs. This efficiency translates to cooler operation and potentially lower electricity bills over time. The active PFC technology further stabilises voltage delivery, protecting your components from power fluctuations that can cause system instability or damage.

Quiet Cooling with Smart Temperature Control

A temperature-controlled 80mm fan keeps the PSU cool while maintaining minimal noise levels under 17 dBA. The honeycomb ventilation design improves airflow efficiency, allowing the fan to spin slower under light loads for quieter operation. This makes the GT-300W particularly suitable for living room PCs or office environments where noise reduction matters.

Comprehensive Protection for System Safety

Built-in protection features include Over Power Protection (OPP), Over Voltage Protection (OVP), Under Voltage Protection (UVP), and Short Circuit Protection (SCP). These safeguards work together to prevent damage from electrical faults, ensuring your valuable components remain protected during unexpected power events or hardware failures.

Essential Connectivity for Modern Compact Systems

The PSU provides all necessary connectors for typical small form factor builds, including a 20+4 pin motherboard connector, 4+4 pin CPU connector, three SATA power connectors, and one Molex 4-pin peripheral connector. This connector selection covers most compact PC configurations without unnecessary excess cables that would clutter the tight interior space.

Box contents

• GameMax GT-300W TFX power supply unit
• Mounting screws
• User manual

Check before you buy

• Confirm your case supports TFX form factor dimensions (85mm x 65mm x 175mm)
• Verify your system’s power requirements don’t exceed 300W total
• Check connector compatibility with your specific components
• Ensure your motherboard uses ATX12V 2.3 standard

Frequently Asked Questions

Q: Is this PSU compatible with standard ATX cases?

A: No, this is a TFX form factor unit designed specifically for slim and small form factor cases. Standard ATX cases require full-size ATX PSUs.

Q: What does 80 Plus Bronze certification mean?

A: It indicates the PSU operates at minimum 82% efficiency at 20% load, 85% at 50% load, and 82% at 100% load, reducing wasted energy and heat.

Q: Can this power a gaming PC with a dedicated graphics card?

A: The 300W capacity suits basic office PCs, HTPCs, or systems with integrated graphics. Dedicated gaming GPUs typically require higher wattage PSUs.

Q: What protections does this PSU include?

A: It features OPP, OVP, UVP, and SCP protections to safeguard against power anomalies and prevent damage to connected components.

The Consultant’s verdict & warranty

The GameMax GT-300W offers reliable, efficient power delivery in a compact TFX form factor ideal for slim desktops and small form factor builds. Its 80 Plus Bronze certification, quiet operation, and comprehensive protection features make it a sensible choice for basic computing needs where space and noise are considerations. Covered by the standard Manufacturer Warranty.