The new VERTEX Series units will provide 1200 W / 1000 W / 850 W and 750 Watts of true power in both Platinum and Gold levels of efficiency, with all the best features you can expect from a Seasonic power supply: – Fully compatible with ATX 3.0 and PCIe 5.0 standards – Full modularity for the best cable management options: – Added 12VHPWR 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 – 10 years warranty – our commitment to high quality

Efficiency	Gold
Wattage	1200w
PSU Form Factor	ATX

VERTEX GX

The new VERTEX Series units will provide 1200 W / 1000 W / 850 W and 750 Watts of true power in Gold level of efficiency, with all the best features you can expect from a Seasonic power supply:

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.

Note: Seasonic VERTEX Series PSUs were initially shipped with 12VHPWR cables. Following the ATX standard update, we transitioned to 12V-2×6 connectors. During this period, customers may receive either cable, depending on the region. The updated VERTEX version is expected later in 2025 for Europe and North America. We apologize for any inconvenience.

The Vertex GX ATX 3 Series achieves 80 PLUS^® Gold certification with its 90 % efficiency at 50 % system load.

80 PLUS^® Gold
Cabling

Fully Modular
160 mm (L) x 150 mm (W) x 86 mm (H)

Dimensions
ATX Specifications

ATX 3.1 & PCIe 5.1

Cybenetics – VERTEX GX-1200

Cybenetics – VERTEX GX-1000 / 850 / 750

Unboxing Vertex GX-1200 (2024)

VERTEX GX ATX 3.1

ATX 3.1 and 16-Pin PCIe Gen 5.1 Cable (12V-2×6)

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.

Micro Tolerance Load Regulation

Seasonic’s latest design keeps the output voltage within a very tight range, achieving under 0.5 % load regulation. This impressive electrical performance and stability makes this power supply an ideal choice for high-performance systems.

Digital Hybrid Fan Control

Seasonic’s vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art digital fan control that enables users to keep the overall fan noise at the lowest possible level.
Note: The Digital Hybrid Fan Control chart is provided for reference only. The shape of the curve can look different due to the variability in ambient temperature, system set-up, air flow, and other unpredictable factors.

Reduced noise without increase in temperature
Extended fan life due to the reduced number of fan rotations
Optimized heat dissipation at all times
Unsurpassed silent performance in Fanless Mode

Fluid Dynamic Fan Bearing

High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan.

When the fan shaft rotates, high pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces.
As the speed increases, so does dynamic oil pressure and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.

Specifications

1200 W

Technical Specifications
80PLUS^®		Gold
Cybenetics Efficiency Level		Gold
Cybenetics Noise Level		A-
Form Factor		ATX/EPS
Dimensions		160 × 150 × 86 mm
Fan Information	Fan Size	135 mm
	Fan Control	Digital Fan Control
	Fan Bearing	Fluid Dynamic Bearing
	Life Expectancy	50,000 hours at 40 °C, 15 % – 65 % RH
Cable Information	Modularity	Fully Modular
Cable Information	Cable type	Cables with Braided Pattern
Electrical Features	Operating Temperature	0 – 50 °C
	MTBF @ 25 °C, excl. fan	100,000 hours
	AC Input	Full Range
	Protection	OPP, OVP, UVP, OCP, OTP, SCP
Safety and Environmental	Safety and EMC	cTUVus, TUV, CB, CCC, BSMI, EAC, CE
Safety and Environmental	Environmental Compliance	Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty		12 Years

Power Output
AC Input	100 V – 240 V
	15 – 7.5 A
	50 Hz – 60 Hz
DC Output	Rail	+3.3 V	+5 V	+12 V	-12 V	+5 VSB
	Maximum Power	25 A	25 A	100 A	0.3 A	3 A
		125 W		1200 W	3.6 W	15 W
	Total continuous power	1200 W

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