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Seasonic FOCUS GX ATX 3.1 FOCUS GX-1000 ATX 3.1

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Seasonic FOCUS GX ATX 3.1 FOCUS GX-1000 ATX 3.1
2025FOCUSsemi-passive cooling80+ Gold10 year warranty
850 W1000 W1000 W
white
Main
Power1000 W
Form factorATX
Specs
PFCactive
Efficiency90 %
Cooling systemsemi-passive (fan off)
Fan size135 mm
Fan bearinghydrodynamic
Certification80+ Gold
Cybenetics EfficiencyGold
Cybenetics NoiseA -
ATX12V version3.1
Power connectors
MB/CPU power supply24+8+8(4+4) pin
SATA8
MOLEX3
PCI-E 8pin (6+2)3
PCI-E 16pin1
Cable systemmodular
Braided wires
Cable length
MB610 mm
CPU700 mm
PCI-E750 mm
Max. power
+3.3V25 А
+5V25 А
+12V183 А
-12V0.3 А
+5Vsb3 А
+12V996 W
+3.3V +5V125 W
-12V3.6 W
+5Vsb15 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionOCP, OTP, UVP
Manufacturer's warranty10 years
Dimensions (HxWxD)86x150x140 mm
Official Websiteseasonic.com
Added to E-CatalogMarch 2025
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.
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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Seasonic FOCUS GX ATX 30 power supply unit 1000 W 204 pin ATX Black FOCUS V4 GX-750

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£173.98
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Seasonic Focus GX ATX 3.0 power supply unit 1000 W 20+4 pin ATX Black FOCUS-GX-1000-V4

80 PLUS® GOLD. Fully Modular. ATX 3.0 & PCIe 5.0. FOCUS GX ATX 3.0. Following the well-established legacy of the Seasonic FOC... moreUS Series, the FOCUS GX Series was upgraded to comply with the ATX 3.0 and PCIe 5.0 standards. Offering a complete range of power supplies ranging from 750 W to 1000 W with in a 140 mm depth, these units will be the perfect allies to power the newest high power graphics cards and processors on the market.. Digital Hybrid Fan Control. The industry’s first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Digital Hybrid Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.. 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.. Power. Power protection features. Over current, Over power, Over voltage, Overheating, Short circuit, Under voltage. Max output current (+5Vsb). 3 A. Max output current (-12V). 0.3 A. Max output current (+5V). 25 A. Max output current (+12V). 83 A. Max output current (+3.3V). 25 A. Combined power (+5Vsb). 15 W. Combined power (-12V). 3.6 W. Combined power (+5V). 125 W. Combined power (+12V). 996 W. Combined power (+3.3V). 125 W. Maximum input current (@220V). 6.5 A. Maximum input current (@110V). 13 A. Input current. 13 - 6.5 A. AC input frequency. 50/60 Hz. AC input voltage. 100 - 240 V. Total power. 1000 W. Ports & interfaces. Cabling type. Fully-Modular. CPU power cable length. 70 cm. CPU power connector (4+4 pin). Yes. PCI Express power connectors (12+4 pin). 1. PCI Express power connectors (6+2 pin). 3. Peripheral (Molex) power cable length. 690 mm. Peripheral (Molex) power connectors (4-pin). 3. SATA power cable length. 550 mm. Number of SATA power connectors. 2. Motherboard power cable length. 61 cm. Motherboard power connector. 20+4 pin ATX. Performance. Mean time between failures (MTBF). 100000 h. Bearing technology. FDB. 80 PLUS certification. 80 PLUS
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£173.57
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Seasonic FOCUS GX 1000 Watt ATX3 Fully Modular 80+ Gold PSU, Black

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£179.99
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1000W Seasonic FOCUS GX ATX 3.1 Modular 80 Plus Gold PSU FOCUS-GX-1000-V4

New Seasonic OptiSink Design The overall quality and reliability of the FOCUS v4 Series has been greatly improved by a brand... more-new PCB (Printed Circuit Board) layout and the implementation of automated surface mount technology during production, which minimizes human production errors. By using a redesigned PCB combined with smaller MOSFET and heat sink components, the internal space within the power supply was increased to enhance heat dissipation and airflow to result in better component cooling. The eightfold increase in heat dissipation keeps the internals of the power supply cooler, eventually leading to improved product quality, long-term reliability, and more efficient operation. The redesigned layout of the power supply components and its improved thermal performance creates versatility and allows the power supply to be safely installed in any orientation. The OptiSink design is an eco-friendly solution that not only lowers the costs of material usage and production but also leads to energy savings in the long run. ATX 3.1 and 16-Pin PCIe Gen 5 Cable (12V-2x6) Seasonic’s latest FOCUS ATX 3 Series is designed and built to power new PC components requiring the new ATX 3.1 and PCIe 5.1 standards. Digital Hybrid Fan Control The industry’s first, Seasonic patented, advanced three-phased thermal control achieves optimal between silence and cooling. This Digital Hybrid Fan Control functions in three operational stages: Fanless Mode, Silent Mode, and Cooling Mode.
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£169.99
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Seasonic Seasonic Focus GX-1000 ATX 3.1 1000W 80 Gold Modular Power Supply FOCUS-GX-1000-V4

Following the well-established legacy of the Seasonic FOCUS Series, the FOCUS GX Series has been upgraded to comply with the ... moreATX 3.1 and PCIe 5.1 standards. It offers a complete range of power supplies from 750W to 1000W, all within a compact 140mm depth. Each unit features a 135mm fan, a 12V-2×6 cable, and our new OptiSink technology. These units are designed to be perfect allies in powering the latest high-power graphics cards and processors available on the market. FOCUS GX ATX 3 at a Glance 80 PLUS Gold Efficiency: Offers high energy efficiency, reducing power consumption and heat. Fully Modular Design: Allows for flexible cable management. Compact Size: Fits comfortably in smaller cases. Premium Hybrid Fan Control: Ensures optimal cooling with a silent mode. ATX 3.1 and PCIe 5.1 Ready: Supports modern GPUs and components. 10-Year Warranty: Provides long-term peace of mind FOCUS GX ATX 3 Specification 80PLUS® Gold Cybenetics Efficiency Level Gold Cybenetics Noise Level A- Form Factor ATX/EPS Fan Size 135 mm Fan Control Digital Hybrid Fan Control Fan Bearing Fluid Dynamic Bearing Fan Life Expectancy 50,000 hours at 40°C, 15% - 65% RH Modularity Fully Modular Cable Type Individual Black Cables with Braided Pattern Operating Temperature 0 - 50 °C MTBF @ 25 °C, excl. fan 100,000 hours AC Input Full Range Protection OCP, OPP, OTP, OVP, SCP, UVP Safety and EMC CB, CCC, CE, cTUVus, EAC, TUV, BSMI, FCC Environmental Compliance Energy Star, ErP Lot 6, REACH, RoHS, WEEE Warranty 10 Years
Overclockers.co.uk
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£169.99
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Series Seasonic FOCUSCompare using chart →
Seasonic FOCUS GX GX-850
from £155.94 
850 W, 24+8+8(4+4) pin, 6 х 6+2 pin, SATA 10, Molex 5, ATX, modular, Efficiency 90 %, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX ATX 3.1 GX-850 3.1
from £149.99 
850 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX ATX 3.1 GX-1000 3.1
from £169.99 
1000 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX ATX 3.0 GX-850 3.0
from £129.98 
850 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 10, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX ATX 3.0 GX-750 3.0
from £119.99 
750 W, 24+8+8(4+4) pin, 2 х 6+2 pin, 1 x 16 pin, SATA 10, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GM GM-850
from £96.99 
850 W, 24+8 (4+4) pin, 6 х 6+2 pin, SATA 8, Molex 3, ATX, semi-modular, Efficiency 87 %, semi-passive СО, mining, certificate 80+ Gold, warranty 7 years
Seasonic FOCUS GX ATX 3.1 GX-1000 White
from £129.95 
1000 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS PX PX-750
from £158.65 
750 W, 24+8+8(4+4) pin, 4 х 6+2 pin, SATA 8, Molex 3, ATX, modular, Efficiency 92 %, semi-passive СО, certificate 80+ Platinum, warranty 10 years
Seasonic FOCUS SGX SGX-650
from £148.15 
650 W, 24+8 (4+4) pin, 2 х 6+2 pin, SATA 6, Molex 3, SFX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX ATX 3.0 GX-1000 3.0
from £156.58 
1000 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 10, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS SGX SGX-500
from £144.99 
450 W, 24+8 (4+4) pin, 1 х 6+2 pin, SATA 6, Molex 3, SFX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX GX-550
from £103.25 
550 W, 24+8 (4+4) pin, 2 х 6+2 pin, SATA 6, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS PX PX-550
from £120.07 
550 W, 24+8+8(4+4) pin, 2 х 6+2 pin, SATA 6, Molex 3, ATX, modular, Efficiency 92 %, semi-passive СО, certificate 80+ Platinum, warranty 10 years
Seasonic FOCUS PX PX-850
from £185.33 
850 W, 24+8+8(4+4) pin, 6 х 6+2 pin, SATA 10, Molex 5, ATX, modular, Efficiency 92 %, semi-passive СО, mining, certificate 80+ Platinum, warranty 10 years
Seasonic FOCUS GX GX-1000
from £171.77 
1000 W, 24+8+8(4+4) pin, 6 х 6+2 pin, SATA 10, Molex 5, ATX, modular, Efficiency 92 %, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years

Seasonic FOCUS GX ATX 3.1 configurations

Price for Seasonic FOCUS GX ATX 3.1
Seasonic FOCUS GX ATX 3.1 FOCUS GX-850 ATX 3.1from £149.992 offers
Seasonic FOCUS GX ATX 3.1 FOCUS GX-1000 ATX 3.1from £169.995 offers
Seasonic FOCUS GX ATX 3.1 FOCUS GX-1000 ATX 3.1 Whitefrom £129.954 offers
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Seasonic FOCUS GX GX-1000
from £171.77 
1000 W, 24+8+8(4+4) pin, 6 х 6+2 pin, SATA 10, Molex 5, ATX, modular, Efficiency 92 %, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
Cooler Master MWE Gold V2 ATX 3.0 MPE-A501-AFCAG-3
from £149.99 
1050 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Thermaltake Toughpower GF3 GF3 1000W
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1000 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
NZXT C Series Gold ATX 3.1 C1200 3.1
from £139.99 
1200 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 92 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Seasonic FOCUS GX ATX 3.1 GX-1000 White
from £129.95 
1000 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 3, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Lian Li Edge EG1000 White
from £179.28 
1000 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 92 %, semi-passive СО, certificate 80+ Platinum, warranty 10 years
FSP Hydro PTM X PRO HPT3-1000M.GEN5
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1000 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 3, ATX, modular, Efficiency 92 %, semi-passive СО, certificate 80+ Platinum
MSI MPG PCIE5 A1000G PCIE5
from £169.14 
1000 W, 24+8+8(4+4) pin, 6 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, mining, certificate 80+ Gold, warranty 10 years
MSI MPG GS A1000PCIE5
from £149.98 
1000 W, 24+8+8(4+4) pin, 1 х 6+2 pin, 2 x 16 pin, SATA 8, Molex 4, ATX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 10 years
Xilence Performance X Gen5 XP1050MR9.2
from £162.91 
1050 W, 24+8+8(4+4) pin, 3 х 6+2 pin, 1 x 16 pin, SATA 12, Molex 4, ATX, modular, Efficiency 92 %, certificate 80+ Gold, warranty 3 years
Thermaltake Toughpower SFX GEN5 SFX 1000W
from £139.99 
1000 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 8, Molex 4, SFX, modular, Efficiency 90 %, semi-passive СО, certificate 80+ Gold, warranty 7 years
be quiet! Straight Power 12 BN338
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1000 W, 24+8+8(4+4) pin, 4 х 6+2 pin, 1 x 16 pin, SATA 9, Molex 2, ATX, modular, Efficiency 93 %, certificate 80+ Platinum, warranty 10 years
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PSU Seasonic FOCUS GX-1000 ATX 3.1
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