The Antec GSK850 V2 is an 850-watt, fully modular ATX 3.1 power supply designed for modern high-performance PC builds. It supports the latest PCIe 5.1 graphics cards through a dedicated 12V-2x6 cable and features 80 PLUS Gold efficiency for reliable and energy-efficient operation. Equipped with Antec's PhaseWave LLC + DC-DC topology and the full CircuitShield protection suite, it delivers stable, safe power with long-term durability.
Its Zero RPM fan mode ensures silent operation at low loads, while the compact 140 mm length makes it suitable for a wide range of cases. With a 10-year warranty and updated ATX 12V 3.1 compliance, it is built for next-generation systems.
Power
850W
ATX Standard
ATX 12V 3.1
Efficiency Rating
80 PLUS Gold
Modularity
Full Modular
GPU Support
PCIe 5.1 (12V-2x6 Cable Included)
Input Voltage
100–240V AC, 50–60Hz
Cooling
120mm Silent Fan with Zero RPM Mode
Topology
PhaseWave LLC + DC-DC Design
Protection Features
OCP, OVP, UVP, SCP, OPP, OTP, SIP, NLO
Dimensions
140mm (L) × 150mm (W) × 86mm (H)
Weight
Approx. 2.50kg
Operating Temperature
0°C – 40°C
Motherboard Connector
1 × 24-pin (20+4)
CPU Connectors
2 × 8-pin (4+4) EPS
PCIe Connectors
4 × 8-pin (6+2)
12V-2x6 Connector
1 × PCIe 5.1 GPU
SATA Connectors
8 × SATA
Molex Connectors
4 × Molex
Warranty
10 Years
Warranty:
7 Year Return To Base Warranty
Return-to-Base warranty returns are processed within 14 business days of confirmed date of receipt - see our
Returns Policy for more information.
|
CERTIFICATES
|
| Certification |
cTUVus / TUV / CB / RCM / CE / FCC / BSMI / KC
/ UKCA / ICES |
DESIGN
|
| Product colour |
Black |
| Number of fans |
1 fan(s) |
| On/off switch |
Yes |
| Cooling type |
Active |
| Fan diameter |
12 cm |
| Fan location |
Top |
ENERGY MANAGEMENT
|
| Input current |
10 A |
| Power protection features |
No load operation, Over current, Over power, Over voltage, Short circuit, Surge & inrush protection (SIP), Under voltage |
| Power Factor Correction (PFC) type |
Active |
| Combined power (+3.3V) |
100 W |
| Combined power (+12V) |
849.6 W |
| Combined power (+5V) |
100 W |
| Combined power (-12V) |
3.6 W |
| Combined power (+5Vsb) |
15 W |
| Max output current (+3.3V) |
20 A |
| Max output current (+12V) |
70.8 A |
| Max output current (+5V) |
20 A |
| Max output current (-12V) |
0.3 A |
| Max output current (+5Vsb) |
3 A |
| AC input frequency |
50/60 Hz |
| AC input voltage |
100 - 240 V |
| Total power |
850 W |
OPERATIONAL CONDITIONS
|
| Operating temperature (T-T) |
0 - 40 °C |
PACKAGING DATA
|
| Package weight |
2.72 kg |
| Package depth |
296 mm |
| Package height |
130 mm |
| Package width |
203 mm |
| Package type |
Box |
PERFORMANCE
|
| Certification |
cTUVus / TUV / CB / RCM / CE / FCC / BSMI / KC
/ UKCA / ICES |
| Purpose |
PC |
| ATX version |
3.1 |
| 80 PLUS certification |
80 PLUS Gold |
| Silent mode |
Yes |
| Power supply unit (PSU) form factor |
ATX |
PORTS & INTERFACES
|
| Motherboard power connector |
20+4 pin ATX |
| Number of SATA power connectors |
8 |
| Peripheral (Molex) power connectors (4-pin) |
4 |
| ATX power connector (20+4 pin) |
Yes |
| CPU power connector (4+4 pin) |
Yes |
| PCI Express power connectors (6+2 pin) |
4 |
| Cabling type |
Fully-Modular |
| Motherboard power cable length |
60 cm |
| SATA power cable length |
450,300,900 mm |
| Peripheral (Molex) power cable length |
450,300,900 mm |
| PCI Express power connectors (12+4 pin) |
1 |
| PCI Express power connectors (12+4 pin) cable length |
600 mm |
WEIGHT & DIMENSIONS
|
| Weight |
2.5 kg |
| Height |
86 mm |
| Width |
150 mm |
| Depth |
140 mm |