We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black ATX power supply with modular cable ports and a 135 mm fan grille

Seasonic

Seasonic SSR-1600PD2 1600W power supply

SKU CH-J2WX-41YWE MPN SSR-1600PD2

A 1600W ATX 3.1 power supply with 80 PLUS Titanium efficiency, a native 12V-2x6 connector for RTX cards, fully modular cabling and a Cybenetics Lambda A rated 135mm fluid dynamic bearing fan

  • Max wattage1600 W
  • Power efficiency> 95%
  • Modular cablingFull Modular
  • Fan configuration1 × 135 mm Fluid Dynamic Bearing Fan
  • 12V railsSingle
  • PSU length limit210 mm

Model ATX 3.1 Platinum (1600W)

  • Delivers 1600 W to power demanding builds
  • 80 PLUS Titanium certification keeps efficiency above 95 %
  • Cybenetics Lambda A rating ensures quiet operation
  • Fully modular design simplifies cable management
  • Native 12V-2x6 connector supports modern GPUs

1600W ATX 3.1 power supply

The Seasonic SSR-1600PD2 delivers 1600W through a single +12V rail rated at 133.3A. It meets ATX 3.1 and PCIe 5.1 specifications and includes a native 12V-2x6 connector for modern GPUs. Fully modular cabling keeps the build tidy.

Sustained load behaviour

80 PLUS Titanium and Cybenetics ETA Titanium certifications confirm efficiency above 95% across typical loads. The 135mm fluid dynamic bearing fan runs under Digital Hybrid Fan Control, achieving Cybenetics Lambda A noise levels even during extended high-wattage operation. Micro Tolerance Load Regulation holds voltage within 0.5%.

Compatibility checks

Verify the case can accommodate a 210mm deep ATX/EPS unit. Confirm the motherboard uses standard 24-pin ATX and 8-pin EPS connectors supported by the modular interface. Ensure the AC supply provides 100-240V at 50-60Hz with adequate circuit capacity for 15A at 100V or 10A at 240V input.

How it compares

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

Price $406.99
Pricier than about 85% 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).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSeaSonic USA
Model nameSSR-1600PD2
Product typeATX/EPS
Performance
Frequency50 Hz - 60 Hz
Power
Max wattage1600 W
Power efficiency> 95%
Modular cablingFull Modular
12V railsSingle
Efficiency certification80 PLUS TITANIUM Certified
Overload protectionYes
Supply voltage100–240 V
AC input frequency50 Hz - 60 Hz
Rated input current15A @ 100 V, 10A @ 240 V
Rated power1600 W
+3.3V max. current25A
+5V max. current25A
+12V1 max. current133.3A
-12V max. current0.5A
+5VSB max. current3A
Overvoltage protectionYes
Under voltage protectionYes
Over current protectionYes
Over power protectionYes
Size & build
Product dimensions8.3 × 6 × 3.4 in
Product weight6.17 lb (2.8 kg)
Top fans size135 mm
Rear fans size135 mm
Shipping weight5.90 kg
Package size457 × 191 × 127 mm
Compatibility
PSU length limit210 mm
In the box
Fans total quantity1
Environment & compliance
PSU noise ratingCybenetics A
Over temperature protectionYes
More details
Fan configuration1 × 135 mm Fluid Dynamic Bearing Fan
Mean time between failures>100,000 h
Top fans bearing typeFluid Dynamic Bearing
Rear fans bearing typeFluid Dynamic
Over load protectionYes
Short circuit protectionYes

Other versions of this model

5 more in the same range

Questions about this item

How loud is the 135 mm Fluid Dynamic Bearing fan under continuous full load?

Cybenetics Lambda A certification confirms very low operating noise even when the 1600 W unit runs all day. Digital Hybrid Fan Control keeps the fan speed proportional to load and temperature.

Which motherboard and GPU connectors do I need on my existing hardware for the native 12V-2x6 cable to work?

The PSU follows ATX 3.1 and PCIe 5.1 pin-outs, so your motherboard must provide a 24-pin ATX and EPS12V headers while the graphics card needs a 12V-2x6 or 12VHPWR receptacle.

Will the 210 mm length and single +12 V rail design fit and power an older ATX 2.x motherboard and PCIe 4.0 GPU without adapters?

Yes, the fully modular cables include standard 24-pin, EPS and PCIe 6+2 pin connectors that are backward compatible with ATX 2.x boards and PCIe 4.0 cards.

More in ATX Desktop Power Supplies

Similar items