Gamemax 1250 W Gold GX PRO 1250G Full Modular Power Supply

Gamemax GX PRO 1250G is a high-class ATX power supply with 1250 W output power and 80 PLUS Gold efficiency, aimed at serious gaming and workstation configurations with powerful GPUs. You get a modular unit ready for ATX 3.1 & PCIe 5.1 with a native 12V-2x6 connector, so you are covered for RTX 40/50 generation cards. With active PFC, APFC + LLC + DC-DC design and Japanese main capacitors rated at 105°C, this power supply is designed for stability under high load. Add to that a 135 mm FDB fan with intelligent control and you get a combination of power, efficiency, and low noise.

What you get

With 1250 W real output power and efficiency up to 92% (typically >87%), you have serious resources for high-end CPU + top GPU, including overclocking and many storage devices. The native 16-pin 12V-2x6 PCIe 5.1 connector allows you to power modern graphics cards directly, without adapters, and reduce the risk of poor contact. 10x SATA and 3x Molex provide freedom for many SSD/HDD, fans, and peripherals, which is convenient for both massive gaming builds and creative stations. The “Wireless” internal connections and gold-plated cables help for better conductivity and cleaner internal airflow. With the intelligent 135 mm FDB fan and noise level below 25 dBA, your machine stays quiet even under load.

• 1250 W output power gives you headroom for the highest class GPUs and multi-core CPUs, without worrying about power supply limitations.
• 80 PLUS Gold efficiency (typically >87%, up to 92% max) means less loss, lower consumption from the outlet, and lower temperatures inside the case.
• ATX 3.1 & PCIe 5.1 ready with a native 12V-2x6 connector, optimized for RTX 40/50 series and future generations of graphics cards.
• Fully modular design with flat “embossed” cables and “wireless” internal connections helps for clean cable management and better airflow.
• APFC + LLC + DC-DC topology and Japanese main capacitors rated at 105°C ensure stable voltages and reliability under prolonged high load.
• 135 mm FDB fan with intelligent temperature control and noise level < 25 dBA keeps the power supply cool and quiet.
• Comprehensive protection package OPP, OVP, UVP, OCP, SCP, OTP, NLP, SIP, OLP, NLO and MTBF > 100,000 hours for maximum safety and long life.
• Wide input range 110–240 VAC, Active PFC and certificates CE, FCC, CB, RoHS, TUV, cTUVus for stable operation in various conditions.
• Compact dimensions 160 x 85 x 150 mm (ATX format) and 10 years warranty (120 months) add peace of mind for a long-term build.

Who it is suitable for

This power supply is for configurations with top-class graphics cards, plenty of storage, and additional devices – high-end gaming, streaming, 3D rendering, video, and other heavy production tasks. If you are building a budget setup or a mid-range machine with a more modest card, you probably won't utilize the full potential of 1250 W and can go lower in power. But if you want serious headroom and readiness for next-generation GPUs, the GX PRO 1250G is a logical choice.

The combination of high power, Gold efficiency, ATX 3.1 / PCIe 5.1 support, and long warranty makes this power supply a stable foundation for a build that you won't change soon. Particularly impressive is the balance between power, protections, and low noise under 25 dBA.