Seasonic VERTEX 850W (GX-850) 80 PLUS Gold Modular PSU

$396.99

Recommended retail price $457.95. You save $60.96 (13%).

  • 80 PLUS Gold certified efficiency
  • Fully modular flat black cabling
  • 135 mm fluid dynamic bearing fan
  • ATX 3.0 and 16-pin PCIe Gen 5 ready
  • 10-year warranty coverage

In stock

Add to Cart
Seasonic VERTEX 850W (GX-850)  80 PLUS Gold Modular PSU
Seasonic VERTEX 850W (GX-850) 80 PLUS Gold Modular PSU
$396.99
Specifications
BrandSeasonic
Dimensions60 × 40 × 30 cm
Weight5 kg
Delivery & Returns
  • Free delivery on this item.
  • Sent directly from our Australian warehouse partners.
  • Usually dispatched within 1-3 business days.
  • Delivery after dispatch: usually 2-8 business days within Australia, 7-14 business days to New Zealand. Tracking is emailed when it ships.
  • Change-of-mind returns within 14 days on unopened eligible items (10% restocking fee; you pay return postage). Faulty or wrong items are always put right, free. Returns policy

Shipping across Australia & New Zealand
14-day returns on eligible items
Secure checkout

Guaranteed safe checkout

  • Visa
  • Mastercard
  • American Express
  • 3-D Secure

01PORTABLE AIR CONDITIONERS

Quiet Power for High Performance Builds

Tucked away in the chassis, this power supply unit hums quietly while driving demanding hardware. Its compact form factor fits standard cases without crowding other components.

The Seasonic VERTEX GX-850 delivers stable voltage regulation and efficient power distribution, suiting enthusiasts building high-end gaming or workstation systems who value reliability and silence.

Seasonic VERTEX 850W (GX-850)  80 PLUS Gold Modular PSU
Seasonic VERTEX 850W (GX-850)  80 PLUS Gold Modular PSU

02DESIGN

Compact Form Factor for Tight Cases

Measuring 160 mm in length, 150 mm in width and 86 mm in height, the unit occupies minimal space within the computer case. This Intel ATX 12 V form factor allows for easier cable management and better airflow around surrounding components, ensuring a clean interior layout.

Seasonic VERTEX 850W (GX-850)  80 PLUS Gold Modular PSU

03PERFORMANCE

Stable Voltage Under Heavy Load

With tight voltage regulation of ±3% across the 12V, 5V and 3.3V rails, the unit maintains consistent output even under peak demand. The +12V rail provides up to 70A, supporting high-current graphics cards and processors without fluctuation, ensuring system stability during intense tasks.

COOLING

Silent Operation via Hybrid Control

A 135 mm fan with a fluid dynamic bearing runs on premium hybrid control, adjusting speed based on load to minimize noise. Rated for 50,000 hours at 40°C, the fan ensures long-term quiet operation, keeping the build silent whether idling or under full stress.

CONNECTIVITY

Modern Cables for Next-Gen Hardware

Fully modular flat black cables include an ATX 3.0 compliant 16-pin PCIe Gen 5 connector (12VHPWR), simplifying connections for modern GPUs. Gold-plated terminals on motherboard, CPU and PCIe connectors reduce resistance, maintaining signal integrity and power flow efficiency over time.

AT A GLANCE

The key points

  • 80 PLUS Gold certified efficiency
  • Fully modular flat black cabling
  • 135 mm fluid dynamic bearing fan
  • ATX 3.0 and 16-pin PCIe Gen 5 ready
  • 10-year warranty coverage

FEATURES

  • Super-High Efficiency, 80 PLUS® Platinum Certified
  • Fully Modular
  • ATX 3.0 and 16-Pin PCIe Gen 5 Cable (12VHPWR)
  • Top-Quality 135 mm Fluid Dynamic Bearing Fan
  • Premium Hybrid Fan Control
  • Tight Voltage Regulation (12 V, 5 V and 3.3 V) [± 3 %]
  • Gold Plated High Current Terminal (MB, CPU and PCIe)

SPECIFICATIONS

Technical Specifications
80PLUS ®
Gold
Cybenetics Efficiency Level
TBA
Cybenetics Noise Level
TBA
Form Factor
Intel ATX 12 V
Dimensions
160 mm (L) x 150 mm (W) x 86 mm (H)
Fan Information · Fan Size · 135 mm
Fan Control
Premium Hybrid Fan Control
Fan Bearing
Fluid Dynamic Bearing
Life Expectancy
50,000 hours at 40 °C, 15 % – 65 % RH
Cable Information · Modularity · Fully Modular
Cable type
Flat black cables
Electrical Features · Operating Temperature · 0 – 50 °C (derating from 100 % to 80 % from 40 °C to 50 °C)
MTBF @ 25 °C, excl. fan
150,000 hours
AC Input
Full Range
Protection
OPP, OVP, UVP, OCP, OTP, SCP
Safety and Environmental · Safety and EMC · cTUVus, TUV, CB, CCC, BSMI, EAC, CE
Environmental Compliance
Energy Star, RoHS, WEEE, ErP Lot 6, REACH
Warranty
10 Years
Power Output
AC Input
Voltage: 100 V – 240 V
Current
11 – 5.5 A
Frequency
50 Hz – 60 Hz
DC Output · Rail · +3.3 V · +5 V · +12 V · -12 V · +5 VSB
Maximum Power · 20 A · 20 A · 70 A · 0.3 A · 3 A
125 W · 840 W · 3.6 W · 15 W
Total continuous power
850 W

Additional information

Weight 5 kg
Dimensions 60 × 40 × 30 cm

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.