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Black rectangular ATX power supply with modular cable sockets and a 120 mm fan grille

Seasonic

Seasonic CORE ATX3 (2024) GX-650 DUP 650 W power supply

SKU CH-XE57-P4X1P MPN CORE ATX3 (2024) GX-650 DUP

A 650 W ATX 3.1 fully modular unit with an 80 PLUS Gold rating and a 120 mm hydro dynamic bearing fan

  • Max wattage650 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm Hydro Dynamic Bearing Fan
  • PSU length limit150 mm
  • Efficiency certification80 PLUS GOLD Certified
  • Built-in protectionOPP, OCP, OTP, OVP, SCP, UVP
  • ATX 3.1 design supports modern GPU power delivery
  • Full modular cabling keeps builds tidy and airflow clear
  • 80 PLUS Gold efficiency reduces waste heat and running cost
  • 120 mm Hydro Dynamic Bearing fan runs quiet under load
  • 150 mm depth fits most compact cases

ATX 3.1 650 W Gold unit

The Seasonic CORE ATX 3 (2024) GX-650 is a 650 W ATX 3.1 power supply with 80 PLUS Gold certification. Full modular cabling lets you connect only the cables your build needs. A 120 mm hydro dynamic bearing fan handles airflow. Protection circuits cover over-power, over-current, over-temperature, over-voltage, short-circuit and under-voltage events.

Cable routing and case clearance

Verify that your chassis can accommodate a 150 mm deep unit and that the 140 × 86 mm footprint clears motherboard components. Ensure the main 24-pin, CPU and PCIe cables reach their connectors without sharp bends. Confirm your AC mains supply operates within the 100 to 240 V range at 50 or 60 Hz before connecting the IEC lead.

Thermals noise and power draw

The single 120 mm hydro dynamic bearing fan adjusts speed to load, keeping noise low during typical desktop use. At 80 PLUS Gold efficiency the unit wastes less energy as heat, so exhaust temperatures stay moderate. Continuous output is rated at 650 W across the 100 to 240 V input range.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $88.99
Cheaper than about 72% of the 10,869 comparable items (median $142.99).
Max wattage 650 W
Lower than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSeaSonic
Product lineCORE ATX 3 (2024)
Model nameGX-650
Part numberSRP-CGX651-A5A32SF
Product colorBlack
Product typeATX 3.1
Power
Max wattage650 W
Modular cablingFull Modular
Efficiency certification80 PLUS GOLD Certified
Built-in protectionOPP, OCP, OTP, OVP, SCP, UVP
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current9–4.5 A
Size & build
Product dimensions140 × 150 × 86 mm
Shipping weight2.72 kg
Package size305 × 185 × 114 mm
Compatibility
PSU length limit150 mm
More details
Fan configuration1 × 120 mm Hydro Dynamic Bearing Fan

Questions about this item

What cables are included and which ones must be purchased separately?

The unit is fully modular so only the cables required for the build need to be attached; all necessary power cables are supplied in the box and no extra cables are required for a standard ATX 3.1 installation.

Should I choose the 650 W version or a different capacity for a mid-range GPU?

At 650 W this model suits mid-range graphics cards and mainstream CPUs; select a higher wattage only if the total system draw is expected to exceed 650 W.

What does the 80 PLUS Gold rating mean for daily power draw?

The 80 PLUS Gold certification confirms the supply meets the programme's efficiency targets at typical loads, lowering waste heat and electricity cost during normal operation.

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