The Antec GSK 850W PCIe 5.1 Gen5 80 PLUS Gold Fully Modular Power Supply combines cutting-edge technology with premium build quality, making it a top-tier choice for gamers and professionals. With ATX 3.1 and PCIe 5.1 compatibility, this PSU ensures seamless performance for modern systems, including support for NVIDIA® GeForce RTX™ 40 Series GPUs via its 12VHPWR 12V-2×6 cable. Featuring 80 PLUS Gold certification, it delivers up to 90% energy efficiency, reducing power waste and keeping your system cooler and quieter during operation. The fully modular design allows for precise cable management, eliminating clutter and improving airflow.
At the heart of the GSK 850W is its PhaseWave™ Design, a server-class LLC topology with synchronous rectification and DC-DC conversion that guarantees unparalleled stability and efficient power delivery. The power supply is equipped with high-quality Japanese capacitors, ensuring tight voltage regulation and minimal ripple for enhanced system performance and longevity. Safety is paramount, and the CircuitShield™ suite of protections—including OCP, OVP, UVP, SCP, OPP, OTP, SIP, and NLO—safeguards your components in any operating environment.
Cooling is handled by a 120mm fluid-dynamic bearing (FDB) silent fan, renowned for its durability and quiet operation. The Zero RPM Manager enhances thermal efficiency by activating the fan only when needed, offering near-silent operation during low loads. Compact and versatile, the GSK 850W is designed to fit a wide range of cases while providing exceptional reliability, efficiency, and ease of use. With its advanced features and 5-year warranty, it’s an ideal solution for powering your next high-performance PC build.
FEATURES:
- ATX 3.1 & PCIe 5.1 Compatible
- High-Quality JP Capacitors
- PhaseWave Design
- 120mm FDB Silent Fan
- Zero RPM Manager
- Compact Size
SPECIFICATIONS:
- Modularity: Fully Modular
- Output Capacity: 850W
- 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
- Regulatory: cTUVus / TUV / CB / RCM / CE / FCC / BSMI / KC/ UKCA / ICES
- Fan: 120mm Silent Fan
- Certifications: 80 Plus
- Connectors:
- 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
- Colour: White
- Product Dimensions: 14.0 x 15.0 x 8.6 cm
WHAT’S IN THE BOX:
- Antec GSK 850W PCIe 5.1 Gen5 80 PLUS Gold Fully Modular Power Supply – White x1
1TB LaCie 2.5" Rugged External Hard Drive USB-C
Xiaomi Bluetooth Speaker Mini, 6W, RGB, IP67, 11H Battery
Logitech C920 HD PRO 3.0MP Full HD 1080p Webcam
REDRAGON Over-Ear ARES Aux Gaming Headset - Black
WINX DOODLE Max USI 2.0 Stylus
256GB Hiksemi FUTURE G3 MicroSDXC Gaming Card (Without Adapter)
Enclosure 3.5'' USB3 RCT/Mecer
Cudy AC1200 Wi-Fi Mesh Kit 3 Pack
512GB HIKSEMI Capture V30 MicroSDXC Card (Without Adapter)
Asus Cobble M.2 SSD Enclosure - Black
Xiaomi In-Ear Headphones Basic (Silver)
Car Charger 2-Port Usb (3.1Amp) Cc340
Kensington H1000 USB-C On-Ear Headset
UGreen CM198 3.5/2.5 inch SATA HDD/SDD USB3.0 Docking Station
Mercusys AC1200 Dual-Band Wi-Fi Gigabit Router
Brother HL-L9430CDN A4 Colour Laser Printer - with 3 year warranty and free wireless network card
Asus PRIME B650M-A WIFI II M-ATX Gaming Motherboard
Logitech Brio 100 Full HD 1080P USB Webcam
64GB Hiksemi FUTURE G3 MicroSDXC Gaming Card (Without Adapter)
UGREEN Adjustable Laptop Stand (Silver)
Vga (F) To Vga (F) Adapter
Antec AX20 RGB Windowed Black ATX Mid-Tower Desktop Chassis 








