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SEASONIC VERTEX GX-1200 ATX 3.1 1200W Power Supply
ATX 3.1 and 16-Pin PCIe Gen 5.1 Cable (12V-2x6)
Seasonic’s latest VERTEX ATX 3 Series is designed and built to power new PC components requiring the new ATX 3.1 and PCIe 5.1 standards.
Extremely powerful ATX power supply with 80 PLUS Gold efficiency
The Seasonic Vertex GX 80 ATX 3.1 power supply, with its 850 watts total output power , is suitable for gaming PCs that have built-in components from the absolute high-end segment and rely on powerful and demanding graphics cards.
Impressive performance data
The power pack is extremely efficient, which also results from the use of high-quality electrical components. This is noticeable, among other things, in the fact that high-quality Japanese electrolytic capacitors are installed. The power supply, certified with 80 PLUS Gold, achieves an efficiency of up to 92% at a load of 50%.
Thanks to the ATX form factor, the power supply is ideal for most cases. Despite the extreme performance, the 135 mm fan keeps the Seasonic Vertex GX 80 at cool operating temperatures even after extensive use. With a low load of up to 30%, the fan remains off and the power supply unit is therefore silent.
Fully compatible with ATX 3.1 and PCIe 5.1 standards.
Full modularity for the best cable management options.
Added 12V-2×6 cable to comply with the new graphic cards.
135mm Fluid Dynamic Bearing (FDB) fan for quiet operation.
Seasonic Hybrid Silent Fan Control for optimal cooling.
Complete protection features: OPP / OVP / UVP / SCP / OCP / OTP.
12 years warranty – our commitment to high quality.
Full technical specification | |
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Part Number | VERTEX1200G |
Power | 1200W |
Efficiency Rating | Gold Certified |
Manufacturer Warranty | 10-Year Warranty |
Power Supply Form Factor | ATX |
Output Connector(s) | 1x 20/24-Pin, 2x 4/8-Pin ATX12V, 1x 16-Pin PCIe 5.0 (12V-2x6 (12+4 Pins to 12+4 Pins), 3x 6/8-Pin PCIe, 18x SATA, 3x IDE |
Features | Single 600Watt Nvidia RTX 50 GPU series power connector! 2025 ATX 3.1 Spec |
Minimum Watts | 1200W |
Free Shipping | No |