Antec GSK ATX3.1 850W Power Supply - Full Modular 80 PLUS Gold PSU

The Antec GSK ATX3.1 850W Power Supply delivers reliable, efficient power for gaming and enthusiast PC builds. Built to ATX 3.1 standards with PCIe 5.1 compatibility, this fully modular PSU supports the latest high-performance graphics cards including NVIDIA GeForce RTX 40 Series through its dedicated 12V-2x6 GPU cable.

Advanced Power Delivery Technology

Equipped with high-quality Japanese capacitors, the GSK ensures tight voltage regulation with minimal ripple and noise. The PhaseWave™ Design utilizes server-class LLC topology with synchronous rectification based on DC-DC architecture, providing exceptional power delivery efficiency and stability for demanding systems.

80 PLUS Gold certification guarantees up to 90% energy efficiency at typical loads, reducing energy consumption and operating costs while generating less heat. This efficiency translates to lower electricity bills and a smaller environmental footprint.

Comprehensive Protection Systems

CircuitShield™ Protection safeguards your components with eight independent protection mechanisms: Over Current Protection (OCP), Over Voltage Protection (OVP), Under Voltage Protection (UVP), Short Circuit Protection (SCP), Over Power Protection (OPP), Over Temperature Protection (OTP), Surge Inrush Protection (SIP), and No Load Operation (NLO). These systems work together to prevent damage from power irregularities.

Silent and Efficient Cooling

The 120mm fluid-dynamic bearing (FDB) fan delivers high airflow with minimal noise and extended lifespan. Zero RPM Manager technology keeps the fan completely silent during light loads, activating only when thermal conditions require active cooling. This intelligent thermal management maintains optimal temperatures while ensuring quiet operation.

Full Modular Cable Design

Complete cable modularity allows you to connect only the cables your system requires, eliminating unnecessary clutter inside your case. This improves airflow, simplifies builds, and creates a cleaner aesthetic. The comprehensive connection options include 24-pin motherboard, dual 8-pin CPU, PCIe 5.1 16-pin, four 8-pin PCIe, eight SATA, and four Molex connectors.

Compact and Compatible

Measuring 140mm x 150mm x 86mm, the GSK is more compact than many competing power supplies, ensuring compatibility with a wider range of cases including compact and mid-tower builds. Despite its smaller footprint, it maintains full 850W output capacity.

Active PFC and universal input voltage (100V-240V) support worldwide use. The unit operates reliably in temperatures from 0°C to 40°C and carries multiple international certifications including cTUVus, TUV, CB, CE, FCC, and UKCA.

Backed by a comprehensive 7-year warranty, the Antec GSK ATX3.1 850W provides long-term reliability and peace of mind for your system investment.

Specifications:

Model: GSK ATX3.1 850W 80 PLUS Gold
Type: ATX 12V 3.1
Dimensions: 140 (L) x 150 (W) x 86 (H) mm
Modular: Full-Modular
Warranty: 7 years
Input Voltage: 100V-240V
Input Current: 10A Max
Input Frequency Range: 50Hz-60Hz
PFC: Active PFC
Power Good Signal: 100-150ms
Protection: OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
Output Capacity: 850W
Operation Temperature: 0~40°C
Regulatory: cTUVus / TUV / CB / RCM / CE / FCC / BSMI / KC / UKCA / ICES
Fan: 120mm Silent Fan
Certifications: 80 PLUS Gold

Connections:
1 x 24 (20+4) pin MB
1 x 16 (12+4) pin PCIe 5.1 12VHPWR
2 x 8 (4+4) pin CPU
4 x 8 (6+2) pin PCI-E
8 x SATA
4 x Molex

Box Dimensions: 296 (L) x 203 (W) x 130 (H) mm
Net Weight: 2.62 kg
Gross Weight: 2.84 kg

• Wattage: 850W
• Size/Version: ATX 3.1
• Modular: Fully
• SATA Connections: 8
• Certification: Gold
• Colour: Black