Antec GSK 850W | ATX 3.1 & PCIe 5.1 | 80 Plus Gold | Fully Modular | 120mm FDB Fan – New

R1,673.20

Power Your Beast Without Breaking a Sweat

The Antec GSK 850W delivers rock-solid power for the most demanding gaming and professional builds, with full ATX 3.1 and PCIe 5.1 support ready for the latest NVIDIA RTX 40 Series GPUs. Whether you’re pushing frame rates or rendering complex scenes, this PSU keeps your system fed with clean, stable energy — no throttling, no compromises.

Efficiency That Keeps Things Cool and Quiet

Certified 80 PLUS Gold for up to 90% energy efficiency, the GSK 850W runs cooler and quieter than standard PSUs. Its Zero RPM Manager keeps the 120mm fluid-dynamic bearing fan completely silent during light loads — you’ll barely know it’s there until your system demands full power.

Clean Cables, Clean Build

The fully modular design means you only plug in what you need, keeping your case clutter-free and airflow unrestricted. Pair that with a compact form factor and premium Japanese capacitors, and the GSK 850W is built to slot neatly into a wide range of cases while delivering long-lasting, reliable performance backed by a 5-year warranty.

18 in stock

Description
Tech Specs
Performance
Output Capacity
850W
Certification
80 PLUS Gold (up to 90% efficiency)
Modularity
Fully Modular
ATX Standard
ATX 3.1
PCIe Standard
PCIe 5.1
Input Voltage
100V – 240V
Input Current
10A Max
Input Frequency
50Hz – 60Hz
Power Factor Correction
Active PFC
Power Good Signal
100 – 150ms
Topology
PhaseWave™ Design — Server-class LLC with Synchronous Rectification and DC-DC Conversion
Capacitors
High-Quality Japanese Capacitors
Protection
OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO (CircuitShield™)
Cooling
Fan Size
120mm Fluid-Dynamic Bearing (FDB) Silent Fan
Fan Control
Zero RPM Manager (fan activates only under load)
Connectivity
Motherboard Connector
1 x 24 (20+4) pin MB
PCIe 5.1 Connector
1 x 16 (12+4) pin PCIe 5.1 12VHPWR
CPU Connectors
2 x 8 (4+4) pin CPU
PCIe Connectors
4 x 8 (6+2) pin PCI-E
SATA Connectors
8 x SATA
Molex Connectors
4 x Molex
Design
Colour
White
Dimensions
14.0 x 15.0 x 8.6 cm
Regulatory
cTUVus / TUV / CB / RCM / CE / FCC / BSMI / KC / UKCA / ICES
Warranty
Warranty
5-Year Warranty
Additional information
Weight 2.58 kg
Dimensions 24 × 10 × 18.5 cm
Brand

Antec

Colour

White

Warranty

84 Months