Zalman GigaMax III ATX 3.0 850W Bronze PSU - ZM850-GV3

The Zalman GigaMax III ZM850-GV3 is an ATX 3.0 power supply unit with a power output of 850W, aimed at mid-range to high-end gaming and work configurations. It comes with an 80+ Bronze certification and efficiency up to 88%, which is a good balance between price, stability, and power consumption. It supports the PCIe Gen5 12VHPWR connector, so you are covered for modern graphics cards as well. The form factor is standard ATX with a black finish and no RGB – functional, without unnecessary decorations.

What you get

With 850W real power and active PFC, you have a solid foundation for a system with a powerful GPU and lots of peripherals, without wondering if the power supply will “hold up.” ATX 3.0 and support for PCIe Gen5 12VHPWR mean that you can power next-generation graphics cards directly, without adapters. Four PCI-Express 6+2 pin, two 4+4 Pin ATX/EPS, and a total of 6 SATA connectors provide flexibility for systems with many drives, additional cards, and more serious motherboards. The semi-modular design reduces cable clutter – the main cables are fixed, and you only connect the rest if you need them. A 120mm fan takes care of cooling, ensuring the power supply maintains stable voltages under different loads.

• A power output of 850W is sufficient for a strong gaming or workstation build with a powerful GPU and many peripherals.
• The 80+ Bronze certification and efficiency up to 88% help reduce electricity consumption and heat generation.
• ATX 3.0 compatibility and support for the PCIe Gen5 12VHPWR connector prepare you for current and future graphics cards.
• A rich set of connectors: 20+4 Pin ATX, 2 x 4+4 Pin ATX/EPS, 4 x PCI-Express 6+2 pin, 6 x SATA, and 3 x Molex for diverse configurations.
• Semi-modular cabling allows for a cleaner installation and better airflow inside the case.
• The 120mm fan provides active cooling for internal components at various load levels.
• A wide input voltage range of 100–240 VAC ensures stable operation under different electrical conditions.

Who it is suitable for

This power supply is suitable if you are building a serious gaming PC or workstation with a modern graphics card and want ATX 3.0 / PCIe Gen5 support without jumping to more expensive “gold” solutions. It also suits upgrading an older build where you plan to replace the GPU with a more powerful model. It is not aimed at super-compact SFF builds or RGB enthusiasts, as it is a standard ATX format without lighting.

The combination of 850W power, ATX 3.0, and PCIe Gen5 12VHPWR, plus the semi-modular design, makes the Zalman GigaMax III ZM850-GV3 a very reasonable base for a long-term build with the option for future upgrades.