Seasonic Vertex GX-850 850W - PSU, 80 Plus Gold

Ports & interfaces
PCI Express connector
Motherboard power connector	20+4 pin ATX
Number of SATA power connectors	4
Peripheral (Molex) power connectors (4-pin)	1
EPS power connector (8-pin)
ATX power connector (20+4 pin)
PCI Express power connectors (8-pin)	3
CPU power connector (4+4 pin)
CPU P4 connector (4-pin)	2
PCI Express power connectors (6+2 pin)	1
Cabling type	Modular
Motherboard power cable length	61 cm
SATA power cable length	950 mm
CPU power cable length	65 cm
Peripheral (Molex) power cable length	690 mm
PCI Express power cable length	75 cm
Weight & dimensions
Weight	3.7 kg
Height	86 mm
Width	150 mm
Depth	160 mm
Energy management
Peak power	840 W
Input current	11 - 5.5 A
Nominal power	850 W
Efficiency	90%
Power protection features	Over current, Over power, Over voltage, Short circuit, Under voltage
Combined power (+3.3V)	125 W
Combined power (+12V)	840 W
Combined power (+5V)	125 W
Combined power (-12V)	3.6 W
Combined power (+5Vsb)	15 W
Max output current (+3.3V)	20 A
Max output current (+12V)	70 A
Max output current (+5V)	20 A
Max output current (-12V)	0.3 A
Max output current (+5Vsb)	3 A
AC input frequency	50 - 60 Hz
AC input voltage	100 - 240 V
Total power	850 W
Operational conditions
Operating temperature (T-T)	0 - 50 °C
Packaging data
Package type	Box
Certificates
Certification	cTUVus, TUV, CB, CCC, BSMI, EAC, CE, Energy Star, RoHS, WEEE, ErP Lot 6, REACH
RoHS compliance
80 PLUS certification	80 PLUS Gold
Compliance certificates	CE, REACH, RoHS
Packaging content
Cables included	AC, CPU, PCIe, Peripheral (Molex), Peripheral (Molex) to SATA 3.3, SATA
Cable tie(s) included
Design
Product colour	Black
Illumination
Number of fans	1 fan(s)
On/off switch
Cooling type	Active
Fan diameter	13.5 cm
Performance
Mean time between failures (MTBF)	150000 h
Form factor	ATX
Purpose	PC
Bearing technology	FDB
ATX version	3.0
Silent mode
Power supply unit (PSU) form factor	ATX
Logistics data
Warranty period	10 year(s)
EAN	4711173877707
Warranty	1 year

The Seasonic Vertex GX-850 is a fully modular power supply unit designed to provide 850 watts of continuous power for desktop computer systems. It holds an 80 PLUS Gold certification, indicating high operational efficiency under typical load conditions. The unit is compliant with ATX 3.0 / 3.1 standards, ensuring compatibility with current-generation components that require stable power delivery. Its fully modular design allows for the use of only necessary cables, which can aid in cable management and improve internal case airflow.

Cooling is managed by a 135 mm fan that utilizes a Fluid Dynamic Bearing (FDB) for reduced operational noise and an extended service life. The power supply is built to operate within a temperature range of 0 to 50 °C and includes active Power Factor Correction (PFC). It integrates a comprehensive suite of protection circuits, including over-current, over-power, and over-voltage protection, to safeguard system hardware. The standard ATX form factor and 160 mm depth ensure physical compatibility with a wide range of PC cases.

Key Features:

Delivers 850W of total power
Certified for 80 PLUS Gold efficiency
Features a fully modular cabling system
Standard ATX power supply form factor
Includes one 12VHPWR and three 8-pin PCIe connectors
Equipped with a 135 mm Fluid Dynamic Bearing fan
Provides comprehensive power protection features
Measures 160 mm in depth

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leaflet (English)

Seasonic Vertex GX-850 850W - PSU, 80 Plus Gold

Key Specifications