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Rectangular black ATX power supply with 135 mm fan and modular cable sockets

Seasonic

Seasonic PRIME PX-1600 1600W 80+ Platinum Full Modular Power Supply

SKU CH-AN9D-MG79Y MPN PRIME PX-1600

A 1600W fully modular ATX power supply with 80 PLUS Platinum efficiency, a 135mm fluid dynamic bearing fan offering fanless, silent and cooling modes.

  • Max wattage1600 W
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm Fluid Dynamic Bearing
  • Main power connector20+4Pin
  • 12V railsSingle
  • PCIe power connectors8 × 6+2-Pin

Model ATX 80+ Platinum (1600W) Black

  • 80 PLUS Platinum certification cuts wasted energy at high loads
  • Fully modular cables keep the build tidy and airflow clear
  • 135 mm fluid dynamic bearing fan runs quietly across three control modes
  • Micro tolerance load regulation holds voltage within .5 % under demand
  • Over 150000 hours MTBF signals long-term reliability for heavy workloads

1600W Platinum ATX Power Supply

The Seasonic PRIME PX-1600 delivers 1600 W of continuous power with 80 PLUS Platinum efficiency. A single +12 V rail and fully modular cabling suit multi-GPU workstations and high-end gaming rigs that demand stable, high-wattage output.

210 mm Full Modular Installation

At 210 mm long, the unit fits standard ATX bays and the full modular design lets you connect only the cables you need. Eight 6+2 pin PCIe and two 12VHPWR cables support multiple graphics cards, while three 4+4 pin EPS cables serve dual-CPU boards; route cables before securing the PSU to avoid bending the 135 mm fluid dynamic bearing fan grille.

100-240 V Input and Connector Check

Verify that your mains supply falls within the 100-240 V, 50/60 Hz range and that your case clears a 210 mm deep unit. Confirm your motherboard needs a 20+4 pin ATX and up to three 4+4 pin EPS connectors, and count GPU power plugs against the eight 6+2 pin plus two 12VHPWR leads provided.

How it compares

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

Price $353.99
Pricier than about 82% of the 10,869 comparable items (median $142.99).
Max wattage 1600 W
Higher than about 92% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSeaSonic
Model namePRIME PX-1600
Product typeATX12 V
Ports & slots
PCIe power connectors8 × 6+2-Pin
SATA power connectors18
Output type+3.3 V@25A, +5 V@25A, +5VSB@3A
Connection types1 × 24 pin (20+4) ATX
3 × 8 pin (4+4) EPS (CPU)
8 × 8 pin (6+2) PCIe
2 × 16 pin PCIe
18 x SATA
3 × 4 pin Peripheral
Power
Max wattage1600 W
Modular cablingFull Modular
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS PLATINUM Certified
Built-in protectionOPP, OVP, UVP, OCP, OTP, SCP
Supply voltage100–240 V
AC input frequency50/60 Hz
Rated input current15-10 A
Size & build
Product dimensions3.39 in × 5.91 in × 8.27 in
Shipping weight6.14 kg
Package size470 × 197 × 127 mm
Compatibility
PSU length limit210 mm
Environment & compliance
Regulatory approvalscTUVus, TUV, CB, CCC, BSMI, EAC, CE
Energy Star, RoHS, WEEE, ErP Lot 6, REACH
More details
Fan configuration1 × 135 mm Fluid Dynamic Bearing
Mean time between failures>150,000 h

Other versions of this model

3 more in the same range

Questions about this item

How can I confirm the PRIME PX-1600 is operating correctly once installed?

The 135 mm Fluid Dynamic Bearing fan will spin only when the hybrid fan control circuit demands active cooling; in low-load conditions it stays off, so silent operation at idle is normal.

Which cables and connectors ship with the PRIME PX-1600 and what must I source separately?

The box includes one 20+4 pin ATX cable (610 mm), three 4+4 pin CPU cables (700 mm), eight 6+2 pin PCIe cables (750 mm), two 12VHPWR cables (750 mm), four 4-SATA cables (950 mm), one 2-SATA cable (550 mm), and one 3-Molex cable (690 mm); no extra cables are required for standard builds.

How do I decide between the available PRIME PX-1600 capacity options?

This model is offered only as a 1600 W unit; choose it when your system's peak power demand matches that rating.

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