C850 SFX GOLD

Name: C850 SFX GOLD
Brand: NZXT
Price: 199.99 USD
Availability: InStock

850 Watt 80 PLUS Gold SFX Fully Modular ATX 3.1 PSU

New

$199.99

Color:Black

Variant

Key Specs

GPU Power: 600W 12V-2x6 (PCIe 5.1) or dual 8-pin PCIE cable
Efficiency Rating: 80 PLUS Gold, Cybenetics Platinum
Noise Rating: Cybenetics A- (25 dBA to 30 dBA)
Fan Control: Zero RPM Mode
Warranty: 10 Years

Inside the Box

Power supply unit
24-pin ATX power cable
4+4-pin CPU power cable
6+2-pin PCIe power cable
16-pin (PSU) to dual 8-pin (6+2) PCIe power cable
16-pin (12+4) 12V-2x6 PCIe power cable
SATA power cable x2
Peripherals cable
#6-32 screw x4
AC power cord

Warranty & Return Policy

NZXT Product Warranty Length click here
NZXT.com Store Returns/Exchange Policy

Eligible products qualify for a refund or exchange only with an authorized RMA number and the item is returned to the NZXT.com Store inventory within 30 days of purchase. Returns are not allowed beyond 30 days of the purchase date.

The NZXT.com Store reserves the right to deny any return or exchange. Refunds will be credited to the original method of payment. To initiate a return, simply submit a request.

Resources

Manuals & Documentation

C850 SFX GOLD

$199.99

Overview

The C850 SFX Gold is an efficient, compact solution built for your small form factor (SFF) setup. It's fully ATX 3.1 compliant and includes a 600W 12V-2x6 connector, ensuring steady performance for demanding graphics cards. Experience stable, quiet, and cool power delivery, all within a tiny footprint.

Designed for Compact Builds: Maximize your space efficiency with the SFX form factor, delivering full power capabilities in a size optimized for small form factor (SFF) cases.
Reliable GPU Power: ATX 3.1 certification and a 600W 12V-2x6 connector ensure safe, dependable power delivery for modern graphics cards.
Premium Efficiency, Quiet Operation: 80 PLUS Gold & Cybenetics Platinum efficiency ratings mean less heat is generated, while Cybenetics A- noise rating ensures a quieter overall system.
Uninterrupted System Performance: Low ripple noise, tight voltage regulation, and long hold-up time help protect your components and keep your system running smoothly.
Silent Cooling with FDB Fan: A 92 mm fluid dynamic bearing (FDB) fan offers durable and efficient cooling, featuring a Zero RPM mode for silent operation.
Enhanced Durability and Stability: Constructed with 105°C-rated Japanese capacitors, guaranteeing long-term reliability and stable performance especially during heavy workloads.
Simplify Cable Management: Fully modular design with embossed cables and included combs allows you to connect only the essentials, improving routing in tight builds.
Built for Safety and Longevity: A full suite of safety protections and rigorous stress testing help safeguard your PC, all backed by a 10-year warranty for long-term peace of mind.

Power, Perfectly Compact

Experience focused power in minimal spaces with the C850 SFX Gold, delivering 80 PLUS Gold efficiency and ATX 3.1 reliability. Designed specifically for small yet powerful builds, it is the essential, capable core of your system.

Made For Smaller Cases

The SFX form factor slides easily into the smallest cases, offering dependable, high-output power without taking up unnecessary room.

Ready for Great Builds

With ATX 3.1 and PCIe 5.1 support, power is prepared for today and the future. Includes a 600W 12V-2x6 cable to reliably power demanding graphics cards.

Efficient Power Delivery

80 PLUS Gold certification and Cybenetics Platinum rating mean less wasted energy and cooler operation. Efficient power is smart power.

Premium Japanese Capacitors

Built with 100% Japanese capacitors rated to 105°C for consistent, long-term performance and reliability that lasts for years.

Simple, Clean Connections

Fully modular, embossed all-copper cables let you connect only what you need, while included PSU cable combs keep runs clean, aligned, and organized.

Whisper-Quiet Cooling

A 92 mm fluid dynamic bearing fan with Zero RPM mode and A- Cybenetics noise rating keeps cooling near-silent and consistent under any load.

Safe, Stable, Secure

Build and use with confidence. A full set of safety features ensures performance is reliable and worry-free. Everything is protected by a 10-year warranty.

Tech Specs

Width

125 mm

Height

63.5 mm

Depth

100 mm

Wattage

850 W

Form Factor

SFX

ATX Version

3.1

80 PLUS Rating

Gold

Cybenetics Efficiency

Platinum

Cybenetics Noise

A-

Modular

Fully modular

Capacitors

All 105°C-rated Japanese

Cable Type

Individually embossed with cable comb

24-pin ATX Power Cable

350 mm (1)

4+4-pin CPU Power Cable

470 mm (1)

6+2-pin PCIe Power Cable

470 mm (1)

16-pin (PSU) to dual 8-pin (6+2) PCIe power cable

470 mm (2)

16-pin (12+4) 12V-2x6 PCIe power cable

470 mm (1)

SATA Power Cables

100 + 100 mm (6)

Peripherals Cable

100 + 100 mm (3)

Voltage

100 – 240 Vac

Current

10 – 5 A

Frequency

50 – 60 Hz

+3.3 V and +5 V

20 A (100 W)

+12 V

70.83 A (850 W)

5VSB

3 A (15 W)

Total

850 W

80 PLUS Rating

Gold

10% Load

85.9% @ 115 V

20% Load

91.1% @ 115 V

50% Load

92.1% @ 115 V

100% Load

89.2% @ 115 V

Size

92 mm

Type

PWM

Speed

3,500 ± 10% RPM

Airflow

57 CFM

Noise Level

41 dBA

Bearing

Fluid dynamic bearing

Zero RPM Fan Mode

Yes

MTBF

100,000 hours

Temperature

0 – 50°C

PF Correction

Active @ 0.97

Protections

OVP (Over Voltage Protection), UVP (Under Voltage Protection), SCP (Short Circuit Protection), OTP (Over Temperature Protection), OPP (Over Power Protection), OCP (Over Current Protection)

Warranty

10 years

Compliance Standard

ATX12V v3.1 / EPS12V v2.92

Regulation & Certification

CE, UKCA, FCC, IC, BSMI, CB (IEC 62368-1 Ed. 3), LVD (EN 62368-1 Ed. 2), KC

Model Number

PS-8G1BB-US / PS-8G1BB-EU / PS-8G1BB-UK / PS-8G1BB-JP / PS-8G1BB-AU

UPC

810074847414 (US) / 810074847421 (EU) / 810074847407 (UK) / 810074847438 (JP)/ PS-8G1BB-AU (AU/NZ)

EAN

5056547207377 (US) / 5056547207384 (EU) / 5056547207360 (UK) / 5056547207391 (JP)/ PS-8G1BB-AU (AU/NZ)

Frequently Asked Questions

Can I use an SFX PSU in a regular ATX case?

Yes, but be mindful of the cable lengths. We include all the connections required for a high performance build but optimized for a Small Form Factor (SFF) / mini-ITX build. We do not include a SFX to ATX bracket.

Is the C850 SFX compatible with the latest GPUs and CPUs?

Yes. The C850 SFX is ATX 3.1 and PCIe 5.1 compliant, making it ready for the latest GPUs with the 12V-2x6 connector. It also includes PCIe cables for older graphics cards, as well as all the standard connectors needed for current AMD and Intel CPUs.