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Gamemax GX Rampage GX-850 PRO Black

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Gamemax GX Rampage GX-850 PRO Black
2023GX/GZ (gaming)semi-passive cooling80+ Gold
850 W
80+ Gold
black
850 W
80+ Gold
white
Main
Power850 W
Form factorATX
Specs
PFCactive
Efficiency90 %
Cooling systemsemi-passive (fan off)
Fan size135 mm
Fan bearinghydrodynamic
Certification80+ Gold
ATX12V version3
Power connectors
MB/CPU power supply24+8+8(4+4) pin
SATA6
MOLEX3
PCI-E 8pin (6+2)4
PCI-E 16pin1
Cable systemmodular
Cable length
MB650 mm
CPU650 mm
SATA500 mm
MOLEX500 mm
PCI-E550 mm
Max. power
+3.3V20 А
+5V20 А
+12V170 А
-12V0.3 А
+5Vsb2.5 А
+12V840 W
+3.3V +5V100 W
-12V3.6 W
+5Vsb12.5 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOTP, OCP, UVP
Manufacturer's warranty2 years
Dimensions (HxWxD)86x150x160 mm
Official Websitegamemaxpc.com
Added to E-CatalogMay 2023
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Gamemax 2026 - new arrivals, bestsellers, and the most relevant models Gamemax.
How to choose a power supply for a PCBasics of choosing a reliable and balanced power supply for your home, office and gaming computer

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850W GameMax GX Pro Modular 80 Plus Gold PSU GMX-GX850PROB

Introducing a new series of GameMax power supply the GX-850 Pro available in a black or white edition with 80 PLUS Gold certi... morefication brings unbeatable power and a superior performance to your Gaming PC. The GX-850 Pro partners high-end cooling together with premium components to provide an incredibly silent, top performing product perfect for primary gamers. This intelligent fully modular unit features an instinctive Axial-tech fan design to make cooling more productive and guarantees a flawless performance. On the inside only the best components are used, and a full suite of top tier circuit protections ensures that the power that is delivered to your system is safe and reliable in any environment are used. GameMax have created the ultimate gaming Power supply, the GX-850 Pro is the best choice for high-end gaming PCs and Esports environments.
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£79.99
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GameMax GX-850 PRO power supply unit 850 W 20+4 pin ATX ATX Black PSUGMXGX850PRO

The GX-850 Pro partners high-end cooling together with premium components to provide an incredibly silent top performing prod... moreuct perfect for primary gamers. This intelligent fully modular unit features an instinctive Axial-tech fan design to make cooling more productive and guarantees a flawless performance. On the inside only the best components are used and a full suite of top tier circuit protections ensures that the power that is delivered to your system is safe and reliable in any environment are used. GameMax have created the ultimate gaming Power supply the GX-850 Pro is the best choice for high-end gaming PCs and Esports environments. Key Features 80 PLUS Gold Certification - Trusted with an 80 PLUS Gold certification this powerful power supply has a high energy efficiency conversation of over 90 percent. The Gold efficiency results in less heat a quieter operation and increased reliability. Axial-Tech - A 135mm customised Fluid Dynamic Bearing Fan with Axial-Technology features FOB high-precision fan bearings for a quieter and longer life span and a spiral fan design guarantees greater airflow and calculated to keep noise levels down. Intelligent Temperature Control Technology - The 135mm Fluid Dynamic Bearing fan starts when the power consumption is higher than 20 percent and stops when it is lower for a more efficient cooling operation and lower energy costs. Japanese 105 Degree Celsius Capacitors - Delivering a top performance and the reliability to match with the use of high-quality Japanese 105 Degree Celsius capacitors. Other premium components help deliver continuous and stable power providing the greatest durability and highest stability. PCIE 5.0 Ready - The GX-850 Pro includes a 12VHPWR 16-Pin connector offering a powerful and stable performance allowing the PSU to run next-generation GPUs RTX 3090 TI/PCIE 5.0 GPUs. Max. Power output up to 600W. Modular Cable Configuration - A Modular cable management design lets you use only the cables you need. Improved airflow and save space and create a cleaner-looking build with the low-profile flat white cables. Hardware Protection - A full line up top tier circuit protections keeps your build running strong and your hardware safe - OVP (Over Voltage Protection) OCP (Over Current Protection) OPP (Over Power Protection) SCP (Short Circuit Protection) UVP (Under Voltage Protection) OTP (Over Temperature Protection). Specification Form Factor: ATX Series: GameMax GX Pro Modular: Fully Modular Compatibility: ATX 3.0 Wattage: 850 W Connectors: 1 x 20+4 Pin Main 2 x 4+4 Pin 12V 6 x SATA 3 x 4-Pin Molex 4 x 6+2 Pin PCI-e 1x 12+4 Pin 12VHPWR AC Input: 110-240 VAC PFC: Active PFC Fan Type: 135mm Axial-Tech Fan Fan Bearing: Fluid / Hydraulic Bearing Noise:
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GameMax GX-850 PRO power supply unit 850 W 20+4 pin ATX ATX Black PSUGMXGX850PRO

ATX3.1 & PCIe5.1 ready with 12V-2*6 connector. LLC MPS1213 Chipset optimizes LLC resonant circuit for high efficiency at all... moreloads. UP3861 Chip ensures stable 3.3V and 5V outputs with reduced ripple noise. MPS6924 Chip boosts efficiency via optimized synchronous rectification. 105℃ Japanese bulk capacitors ensure long life and stable output. Quiet, temperature-controlled axial fan for efficient cooling. Seven protection levels: OTP, OCP, SCP, OVP, UVP, OPP, SIP. Black flat copper output cables for efficient power delivery. SMT-produced components for fast heat dissipation and stability. 850W 80 Plus Gold ATX3.1 PCIe5.1 power supply with PCIe5.1 12V-2*6 connector for direct RTX™ 40 Series GPU connection, minimizing current loss.. Power. Power protection features. Over current, Over power, Surge & inrush protection (SIP), Under power. Hold time. 10 ms. Efficiency. 87%. Max output current (+5Vsb). 2.5 A. Max output current (-12V). 0.3 A. Max output current (+5V). 20 A. Max output current (+12V). 70 A. Max output current (+3.3V). 20 A. Combined power (+5Vsb). 12.5 W. Combined power (-12V). 3.6 W. Combined power (+5V). 100 W. Combined power (+12V). 840 W. Combined power (+3.3V). 100 W. Power Factor Correction (PFC) type. Active. Power factor. 0.99. Maximum input current (@220V). 5 A. Maximum input current (@110V). 10 A. Input current. 10 - 5 A. AC input frequency. 50/60 Hz. AC input voltage. 100 - 240 V. Total power. 850 W. Ports & interfaces. Cabling type. Fully-Modular. CPU power cable length. 15 cm. CPU power connector (4+4 pin). Yes. PCI Express power connectors (6+2 pin). 4. SATA power cable length. 500,650,800 mm. Number of PATA power connectors. 3. Number of SATA power connectors. 6. Motherboard power cable length. 65 cm. Motherboard power connector. 20+4 pin ATX. Performance. Mean time between failures (MTBF). 100000 h. Noise level. 25 dB. ATX version. 3.1. 80 PLUS certification. 80 PLUS Gold. Power supply unit (PSU) form factor. ATX. Purpose. PC. Design. On/off switch. Yes. Number of fans. 1 fan(s). Fan diameter. 13.5 cm. Cooling type. Active. Product colour. Black. Operational conditions. Operating temperature (T-T). 0 - 40 °C. Certificates. Compliance certificates. CB, CE, Federal Communications Commission (FCC), cTUVus. Weight & dimensions. Height. 85 mm. Depth. 150 mm. Width. 160 mm. Packaging data. Package type. Box
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£88.99
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GAMEMAX GX-850 Pro 850W 80+ Gold ATX 3.0 PCIe 5.0 PSU PSUGMXGX850PRO

GAMEMAX PSUGMXGX850PRO 850W PSU The GAMEMAX GX-850 Pro is a premium 850W fully modular power supply designed for demanding P... moreC builds. Its 80+ Gold certification, intelligent temperature control, and PCIe 5.0 compatibility make it ideal for high-end gaming rigs, demanding workstations, and enthusiasts seeking reliable, high-performance power delivery. Benefit from whisper-quiet operation and robust protection features, ensuring your components remain safe and your system runs smoothly under even the heaviest loads. Features 80 PLUS Gold certified for high efficiency (over 90%) and reduced energy consumption. 135mm Fluid Dynamic Bearing (FDB) Axial-Tech fan for superior cooling and near-silent operation. Intelligent temperature control; fan only activates when needed, minimizing noise and maximizing efficiency. High-quality Japanese 105°C capacitors for exceptional reliability and stability. PCIe 5.0 ready with a 12VHPWR (16-pin) connector, supporting next-generation GPUs with up to 600W power delivery. Fully modular design for improved airflow, cleaner cable management, and easier installation. Comprehensive hardware protection: OVP, OCP, OPP, SCP, UVP, and OTP. 2-year warranty for peace of mind. Specifications Form Factor: ATX Wattage: 850W Modular: Fully Modular Compatibility: ATX 3.0, PCIe 5.0 Connectors: 1 x 20+4 Pin Main; 2 x 4+4 Pin 12V; 6 x SATA; 3 x 4-Pin Molex; 4 x 6+2 Pin PCI-e; 1 x 12+4 Pin 12VHPWR AC Input: 110-240 VAC PFC: Active PFC Fan Type: 135mm Axial-Tech Fan Fan Bearing: Fluid Dynamic Bearing (FDB) Noise Level: 90% MTBF: 100,000 Hours Protection: OPP, OVP, UVP, OCP, SCP, OTP Dimensions (WxHxD): 150 x 86 x 160 mm Weight: 1.47 kg Package Weight: 2.52 kg
ICPC computers
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£92.10
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GameMax GX-850W Pro 80 Plus Gold PSU Modular ATX 3.0 PCIe 5.0 850W Power Supply - BLACK GMX-GX850PROB

The GX-850 Pro partners high-end cooling together with premium components to provide an incredibly silent, top performing pro... moreduct perfect for primary gamers.
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Series Gamemax GX/GZ (gaming)Compare using chart →

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Gamemax GX Rampage GX-850 PRO Blackfrom £79.995 offers
Gamemax GX Rampage GX-850 PRO Whitefrom £80.994 offers
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