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Black rectangular ATX power supply with 135 mm fan and modular cable sockets

Seasonic

Seasonic VERTEX PX-1000 1000W 80+ Platinum ATX 3.0 power supply

SKU CH-X3BF-V1THS MPN VERTEX PX-1000

A 1000 W ATX 3.0 unit with 80 PLUS Platinum efficiency, full modular cables and a 135 mm FDB fan

  • Max wattage1000 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm
  • Power factor correctionActive
  • PSU length limit160 mm
  • Efficiency certification80 PLUS PLATINUM Certified

Model ATX 3.0 Platinum (1000W)

  • 80 PLUS Platinum certification delivers 1000 W with high efficiency
  • ATX 3.0 and PCIe 5.0 ready with 12VHPWR cable included
  • Fully modular design lets you connect only the cables you need
  • 135 mm FDB fan with Hybrid Silent Control keeps noise low
  • Japanese 105 °C capacitors and ±3 % voltage regulation ensure stable power

High-efficiency ATX 3.0 power supply

The Seasonic VERTEX PX-1000 delivers 1000 W of continuous power with 80 PLUS Platinum efficiency. It targets builders assembling high-performance systems who need stable voltage regulation and full modular cabling. The unit includes a native 12VHPWR cable for modern graphics cards. It suits users who value certified components and a long MTBF rating.

Fully modular design simplifies cable routing

Only the cables required for the build need to be connected, reducing clutter inside the chassis. The 160 mm depth fits standard ATX layouts without intruding on drive bays or large coolers. Active PFC handles 100-240 V input across 50/60 Hz automatically. Japanese 105 °C capacitors support tight ±3 % regulation on the 12 V, 5 V and 3.3 V rails.

Hybrid fan control balances thermals and noise

The 135 mm FDB fan stays idle during light loads and spins up only when temperature demands it. Platinum-rated efficiency lowers waste heat, easing the thermal load on the case airflow. Over-voltage protection adds a safety layer during unexpected transients. The platform is rated for 100,000 hours MTBF under normal operating conditions.

How it compares

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

Price $220.99
Pricier than about 67% of the 10,869 comparable items (median $142.99).
Max wattage 1000 W
Higher than about 70% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSeaSonic
Model nameVERTEX PX-1000
Product typeATX
Power
Max wattage1000 W
Modular cablingFull Modular
Power factor correctionActive
Efficiency certification80 PLUS PLATINUM Certified
Overvoltage protectionYes
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current13-6.5A
Size & build
Product dimensions6.3 L × 5.9 W × 3.4 H
Product weight4.34 lb (1.97 kg)
Shipping weight2.73 kg
Package size345 × 185 × 114 mm
Compatibility
PSU length limit160 mm
Environment & compliance
Regulatory approvalscTUVus, TUV, CB, CCC, BSMI, EAC, CE
More details
Fan configuration1 × 135 mm
Mean time between failures100,000 h

Other versions of this model

4 more in the same range

Questions about this item

At what temperature are the Japanese electrolytic capacitors rated for continuous operation?

The capacitors are rated at 105 °C for sustained high-temperature reliability.

How does the 135 mm fluid dynamic bearing fan behave under continuous full-load conditions?

Hybrid Silent Fan Control keeps the fan at low speed until internal temperature rises, then ramps up only as needed for cooling.

Which PCIe 5.0 power connector is included for modern graphics cards?

A 16-pin 12VHPWR cable is supplied in the box for RTX 30 and 40 series GPUs.

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