Seasonic

Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular Power Supply Unit

Name: Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular Power Supply Unit
Brand: Seasonic
SKU: B0CNY2DZSF

Status: Seasonic Prime PX-1600 1600W Platinum ATX 3.0…: Unavailable on Amazon as of 2026-10-05 10:29 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular Power is a specs-and-price decision rather than a crowd-consensus one in the power supplies category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-05 10:29 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Seasonic Prime TX-1600 1600W Power Supply ATX… — $559.99 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $559.99

Similar: Seasonic PRIME TX-1600 Noctua Edition — $753.00 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $753.00

Similar: Seasonic Vertex PX-1000 1000W Platinum Fully… — $310.20 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $310.20

Original listing (currently unavailable) → Compare to similar power supplies

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-05

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Premium hybrid fan control
✓ Backed by Seasonic's warranty and support channels

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The Prime Platinum Series achieves 80 PLUS Platinum certification with its 92 percent efficiency at 50 percent system load. Seasonic’s latest design keeps the output voltage within a very tight range, achieving under 0.5 percent load regulation. This impressive electrical performance and stability makes this power supply an ideal choice for high-performance systems. High performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball bearing fans…

SpecPicks Verdict

SpecPicks scored Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular Power… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Seasonic's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

Premium hybrid fan control
Gold plated connectors
Cable-free connection design
80 Plus platinum certified
Multi-GPU setup and micro tolerance load regulation

Full Specifications

Brand	Seasonic
Wattage	1600 watts
Fan Size	12 centimeters
Model Name	Prime
Unit Count	1 Count
Form Factor	ATX
Model Number	PSUSEA1600PDA3
Connector Type	ATX
Cooling Method	Air
Number of Fans	1
Output Wattage	1600
Item Dimensions	5.12 x 17.91 x 7.68 inches
Mfr Part Number	PSUSEA1600PDA3
Number of Items	1
Compatible Devices	Personal Computer
Power Supply Design	Full Modular
Minimum Input Voltage	100 volts
Item dimensions L x W x H	5.12 x 17.91 x 7.68 inches
System Bus Connector Type	ATX
Connector Type Used on Cable	ATX

Ready to buy?

Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular Power Supply Unit is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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