Seasonic VERTEX 1200W (GX-1200) 80 PLUS Gold Modular PSU

$602.99

Recommended retail price $695.95. You save $92.96 (13%).

  • 135 mm fluid dynamic bearing fan
  • Fully modular flat black cables
  • ATX 3.0 with 16-pin PCIe Gen 5
  • 1200 W continuous output capacity

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Seasonic VERTEX 1200W (GX-1200)  80 PLUS Gold Modular PSU
Seasonic VERTEX 1200W (GX-1200) 80 PLUS Gold Modular PSU
$602.99
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

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14-day returns on eligible items
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01PORTABLE AIR CONDITIONERS

Quiet power for demanding systems

Tucked away inside the chassis, this unit hums quietly while delivering steady current to every component. Its compact form factor fits standard ATX cases without crowding other parts.

Designed for enthusiasts building high-end workstations or gaming rigs, it handles heavy loads with precision voltage regulation and efficient thermal management.

Seasonic VERTEX 1200W (GX-1200)  80 PLUS Gold Modular PSU
Seasonic VERTEX 1200W (GX-1200)  80 PLUS Gold Modular PSU

02DESIGN

Compact footprint for modern 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 dimension allows for easier cable routing and better airflow around surrounding components, maintaining a clean internal aesthetic.

Seasonic VERTEX 1200W (GX-1200)  80 PLUS Gold Modular PSU

03PERFORMANCE

Stable voltage under load

The power supply maintains tight voltage regulation across its 12 V, 5 V and 3.3 V rails, keeping variation within three percent. This consistency ensures that sensitive hardware receives consistent power, supporting stable performance during intensive tasks like rendering or gaming.

COOLING

Silent operation via large fan

A single 135 mm fan uses a fluid dynamic bearing rated for 50,000 hours of operation at 40 degrees Celsius. The premium hybrid control system adjusts speed based on demand, allowing the fan to spin down significantly when the system is idle, reducing noise.

CONNECTIVITY

Modular cabling for flexibility

Fully modular design lets users connect only the necessary cables, reducing clutter inside the chassis. Flat black cables include a dedicated 16-pin PCIe Gen 5 connector for next-generation graphics cards, ensuring compatibility with future hardware upgrades.

AT A GLANCE

The key points

  • 135 mm fluid dynamic bearing fan
  • Fully modular flat black cables
  • ATX 3.0 with 16-pin PCIe Gen 5
  • 1200 W continuous output capacity

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
15 – 7.5 A
Frequency
50 Hz – 60 Hz
DC Output · Rail · +3.3 V · +5 V · +12 V · -12 V · +5 VSB
Maximum Power · 25 A · 25 A · 100 A · 0.3 A · 3 A
125 W · 1200 W · 3.6 W · 15 W
Total continuous power
1200 W

Additional information

Weight 5 kg
Dimensions 60 × 40 × 30 cm

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