Antec HCG850 PRO 850W Power Supply
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About This Item
- 850 W ATX 3.1 gaming power supply with 80 PLUS Platinum efficiency
- 135 mm FDB silent fan with Zero RPM mode for quiet operation
- 100 % modular cabling for easy cable management and clean build
- 14 SATA, 3 PCIe 6+2 pin, and 1 PCIe 5.1 12+4 pin connectors
- PhaseWave™ design with 100 % high-quality JP capacitors
- CircuitShield™ industrial-grade protections including OCP, OVP, SCP
- Compact 150 x 160 x 86 mm size for versatile PC case compatibility
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Antec HCG850 PRO Platinum | 850W ATX3.1 Power Supply
The Antec HIGH CURRENT GAMER HCG850 PRO P GB power supply unit 850 W 20+4 pin ATX ATX Black delivers 850W of clean, efficient power for high-performance gaming and enthusiast PC builds. Built to ATX 3.1 and PCIe 5.1 standards, it supports the latest NVIDIA RTX 40-series graphics cards with stable, reliable power delivery.
Key Specifications
| Metric | Spec |
|---|---|
| Power Output | 850W |
| Efficiency | 80 PLUS Platinum |
| ATX Version | 3.1 |
| Form Factor | ATX |
| Modular | Fully-Modular |
| Fan | 135mm FDB Silent |
ATX 3.1 & PCIe 5.1 Ready for Next-Gen Components
Engineered to meet ATX 3.1 compliance, this PSU provides stable power delivery for the latest hardware demands. The included PCIe 5.1 12VHPWR cable ensures seamless compatibility with NVIDIA RTX 40-series GPUs, delivering clean power without voltage drops or instability during intensive gaming or rendering workloads.
100% High-Quality Japanese Capacitors for Superior Stability
Equipped with 100% high-quality Japanese capacitors, the HCG850 PRO Platinum achieves tight voltage regulation with minimal ripple and noise. This translates to cleaner power for your components, reducing the risk of crashes, data corruption, or hardware stress during demanding tasks.
PhaseWave Design for Unmatched Efficiency
The PhaseWave™ design uses a server-class full-bridge LLC topology with synchronous rectification, ensuring maximum efficiency and stable power delivery. This advanced architecture reduces heat generation and improves overall system reliability, even under heavy loads.
Comprehensive CircuitShield Protection Suite
Built-in industrial-grade protections include over-current (OCP), over-voltage (OVP), under-voltage (UVP), short-circuit (SCP), over-power (OPP), over-temperature (OTP), surge & inrush protection (SIP), and no-load operation safeguards. These protections keep your components safe from electrical anomalies.
Zero RPM Fan Mode for Silent Operation
The intelligent Zero RPM Manager keeps the fan off during low-to-medium loads, eliminating noise when full cooling isn’t needed. The 135mm fluid-dynamic bearing fan only spins up when necessary, balancing silent operation with effective thermal management.
Box Contents
- Antec HCG850 PRO Platinum power supply unit
- PCIe 5.1 12VHPWR GPU cable
- Modular cable set
- Mounting screws
- User manual
Check Before You Buy
- Confirm your PC case has sufficient space (150mm x 160mm x 86mm)
- Verify your GPU requires a 12VHPWR connector for PCIe 5.1 compatibility
- Check if your system’s total power draw stays under 850W
- Ensure your motherboard uses standard 20+4 pin ATX power connector
Frequently Asked Questions
Q: Is this power supply compatible with Intel 12th/13th Gen CPUs?
A: Yes, it supports ATX 3.1 standard and works with all modern Intel and AMD platforms.
Q: Can I use this with non-modular components?
A: The fully-modular design means you only connect cables you need, improving airflow and reducing clutter.
Q: What GPU power connectors are included?
A: Three 6+2 pin PCIe connectors plus one 12+4 pin PCIe 5.1 12VHPWR connector for latest GPUs.
Q: How quiet is the fan under normal use?
A: With Zero RPM mode, the fan remains silent during light loads and only activates when needed.
Q: What warranty coverage is provided?
A: This unit comes with a 10-year manufacturer warranty covering defects in materials and workmanship.
The Consultant’s Verdict & Warranty
The Antec HCG850 PRO Platinum represents excellent value for gamers and enthusiasts building high-performance systems with next-gen components. Its ATX 3.1 compliance, PCIe 5.1 support, and comprehensive protection suite make it future-proof for demanding builds. The 80 PLUS Platinum efficiency helps reduce electricity costs while maintaining stable power delivery. Covered by the standard manufacturer warranty, this PSU offers both performance and peace of mind for your investment.
| Cooling | |
|---|---|
| Fan diameter | 13.5 cm |
| Number of fans | 1 fan(s) |
| Fan location | Top |
| Cooling type | Active |
| Performance | |
| On/off switch | Yes |
| Power supply unit (PSU) form factor | ATX |
| Silent mode | Yes |
| 80 PLUS certification | 80 PLUS Platinum |
| Purpose | PC |
| ATX version | 3.1 |
| Certification | cTUVus/TUV/CB/RCM/CE/FCC/BIS/BSMI/KC/UKCA/ICES/CCC |
| Design | |
| 80 PLUS certification | 80 PLUS Platinum |
| Certification | cTUVus/TUV/CB/RCM/CE/FCC/BIS/BSMI/KC/UKCA/ICES/CCC |
| Product colour | Black |
| Fan diameter | 13.5 cm |
| On/off switch | Yes |
| Number of fans | 1 fan(s) |
| Fan location | Top |
| Cooling type | Active |
| Power | |
| Total power | 850 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Input current | 11 - 5.5 A |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 100 W |
| Combined power (+12V) | 840 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 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| Power protection features | No load operation, Over current, Over power, Over voltage, Short circuit, Surge & inrush protection (SIP), Under voltage |
| Ports & interfaces | |
| Motherboard power cable length | 61 cm |
| SATA power cable length | 150,400,500 mm |
| Peripheral (Molex) power cable length | 100,450 mm |
| CPU power cable length | 70 cm |
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 14 |
| Peripheral (Molex) power connectors (4-pin) | 3 |
| PCI Express power connectors (6+2 pin) | 3 |
| CPU power connector (4+4 pin) | Yes |
| ATX power connector (20+4 pin) | Yes |
| Cabling type | Fully-Modular |
| PCI Express power connectors (12+4 pin) | 1 |
| PCI Express power connectors (12+4 pin) cable length | 750 mm |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 °C |
| Certificates | |
| Certification | cTUVus/TUV/CB/RCM/CE/FCC/BIS/BSMI/KC/UKCA/ICES/CCC |
| 80 PLUS certification | 80 PLUS Platinum |
| Weight & dimensions | |
| Width | 150 mm |
| Depth | 160 mm |
| Height | 86 mm |
| Weight | 3.3 kg |
| Packaging data | |
| Package depth | 336 mm |
| Package width | 198 mm |
| Package height | 133 mm |
| Package type | Box |
| Package weight | 3.91 kg |

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