Antec GSK GSK850 80+ Gold Full Modular ATX3.1 Power Supply
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Receive your order within 2 to 5 business days.
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Technical support from 10 am to 12 pm.
Warranty Coverage
Enjoy a 6-month to 3-year warranty through us with distributors.
Antec GSK GSK850 850W 80+ Gold Full Modular ATX 3.1 Power Supply
Deliver rock-solid power and cutting-edge electrical standards to your battle station with the Antec GSK GSK850. Built to comply with official Intel ATX 3.1 and PCIe 5.1 standards, it features a native 12V-2x6 cable delivering up to 600W directly to modern GeForce RTX 40 and 50 series graphics cards. Equipped with 80 PLUS® Gold certification, full modular flat black cables, 100% Japanese primary capacitors, and a quiet 120mm hydraulic bearing fan.
High-End RTX 4070 Ti / 4080 Super Gaming
Handles high instantaneous power excursion spikes with native PCIe 5.1 12V-2x6 power delivery and zero adapter clutter.
Clean Minimalist Modular Builds
Full modular flat cabling lets you route only essential cables, boosting chassis airflow and simplifying build assembly.
Power Architecture & Thermal Highlights
Intel ATX 3.1 & PCIe 5.1 Architecture
Engineered to withstand heavy 200% power surges under Intel ATX 3.1 specifications, ensuring uncompromised gaming stability.
Native 12V-2x6 600W GPU Delivery
Feeds modern graphics cards through a dedicated 16-pin cable delivering up to 600W with reinforced safety and reduced resistance.
120mm Silent Hydraulic Bearing Fan
Optimized hydraulic fan bearing reduces friction and mechanical noise, automatically scaling RPM with thermal draw.
Fully Modular Flat Ribbon Cables
Every single cable is fully detachable, allowing you to route only what your system demands for an immaculate build.
Recommended Component Synergy
Processors (CPUs)
Continuous clean power delivery for multi-threaded CPUs under maximum boost.
Graphics Cards (GPUs)
Native 12V-2x6 single-cable feeding RTX 40 & 50 series graphics cards.
Motherboards
Dual EPS 8-pin connectors to feed reinforced VRM power stages.
PC Cases
Compact chassis length ensuring generous cable management clearance.
Build Your Dream Custom PC with Certified AHW Engineers
Select 100% compatible components and let our engineers assemble, cable-manage, and stress-test your rig.
Comprehensive Hardware Specifications
| Model Name | Antec GSK GSK850 Gold |
| Continuous Power Rating | 850 Watts |
| Efficiency Certification | 80 PLUS® Gold (Up to 90% @ 50% Load) |
| Form Factor Standard | Intel ATX 3.1 & PCIe 5.1 (ATX 12V v3.1) |
| PCIe 5.1 / 12V-2x6 Connectors | 1x Native 16-Pin 12V-2x6 Connector (Up to 600W) |
| PCIe 6+2 Pin Connectors | 4x PCIe 6+2 Pin Connectors |
| CPU EPS Connectors | 2x 8(4+4) Pin EPS Connectors |
| Main ATX Connector | 1x 24(20+4) Pin Motherboard Connector |
| SATA & Peripheral Connectors | 8x SATA Connectors + 4x 4-Pin Molex |
| Cooling Fan & Bearing | 120mm Hydraulic Bearing Silent Fan |
| +12V Rail Architecture | Single +12V Rail delivering up to 70.8A (850W) |
| Internal Circuit Topology | Active PFC with LLC Resonant & DC-to-DC Converter |
| Capacitor Quality | 100% Japanese Primary Heavy-Duty Capacitor |
| Industrial Safety Suite | OCP, OVP, OPP, OTP, SCP, UVP |
| Physical Dimensions | 140 x 150 x 86 mm (Compact ATX) |
