Gamemax Power Supply 850W GX PRO 850G WH Gold Modular

Gamemax GX PRO 850G WH is an ATX power supply with 850 W power, aimed at mid-range to high-end gaming and workstation configurations. It is certified by 80 PLUS Gold with efficiency up to 92%, so you lose less energy as heat and less burden on the electrical installation. The power supply is fully modular with flat cables, which facilitates cable management and airflow in the case. The white color makes it suitable for clean, "showcase" builds with a transparent side panel.

What you get

With 840 W / 70 A on the +12 V line you have a stable resource for a powerful CPU and a modern high-end GPU, without worrying about power shortage under load. It has a built-in native 16-pin 12V-2x6 PCIe 5.1 connector, so you directly power RTX 40/50 cards, without adapters and without additional cable tightening. The DC-DC design and Japanese 105°C capacitors give more stable voltages and better long-term reliability, especially at higher temperatures. The 135 mm ultra-silent FDB fan with intelligent control maintains low noise (< 25 dBA) and adjusts the RPM according to the temperature, so at idle the system remains quiet. Active PFC (PF > 0.99), dual-phase EMI filtering and the full set of protections protect both the power supply and the other components from network problems and overvoltages.

• 850 W total power up to 840 W / 70 A on the +12 V line – enough for powerful gaming and workstation configurations with a serious GPU.
• 80 PLUS Gold certification and efficiency > 87% (up to 92%) – lower losses, less heating and more stable operation under load.
• ATX 3.0/3.1 and PCIe Gen 5.0/5.1 compatibility with native 12V-2x6 PCIe 5.1 connector – ready for RTX 40/50 and future graphics cards without adapters.
• Modular cable system with flat (embossed flat) cables – you use only the necessary cables, which facilitates assembly and improves airflow.
• Rich set of connectors: 1x 24(20+4)-pin ATX, 2x 8(4+4)-pin CPU, 4x 8(6+2)-pin PCIe, 6x SATA, Molex and FDD – covers standard and more loaded configurations with many devices.
• 135 mm ultra-silent FDB fan with Turbo Axial Flow and intelligent control – low noise (< 25 dBA) and effective cooling in the 0–40 °C range.
• Japanese 105°C capacitors, DC-DC design and MTBF > 100 000 hours – aimed at long life and stability during prolonged operation.
• Multiple protections (OPP, OVP, UVP, OCP, SCP, OTP, NLP, SIP, OLP, NLO) and CE, FCC, CB, RoHS, TUV, cTUVus certifications – additional security for the system.
• Compact dimensions 160 x 85 x 150 mm and weight 2.8 kg – standard ATX format, easy to mount in most cases.

Who is it suitable for

This power supply is a good choice for gaming and enthusiast builds with a powerful graphics card, especially if you aim for RTX 40/50 and want to be calm about ATX 3.1 compatibility. It is also suitable for creative workstations with several disks and a more serious CPU. If you make an ultra-budget build or a super low form factor, 850 W ATX may be an excess in power and size.

The combination of 850 W Gold efficiency, native 12V-2x6 for PCIe 5.1 and modular flat cables in a white case makes Gamemax GX PRO 850G WH a very meaningful base for a modern, clean and quiet build. You get a balance between power, efficiency and real practicality without unnecessary compromises.