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PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU
PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU
PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU
PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU
PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU
PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU
PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

$736.42

(24 reviews)

Premium hybrid fan control Gold plated connectors Cable-free connection design 80 Plus platinum certified Multi-GPU setup and micro tolerance load regulation The Prime Platinum Series achieves 80 PLUS Platinum certification with its 92 percent efficiency at 50 percent system load. Seasonics 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. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan. Seasonics vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level. Seasonics engineers have implemented a new design feature, where instead of cables; the back panel and the PCB are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

Premium hybrid fan control Gold plated connectors Cable-free connection design 80 Plus platinum certified Multi-GPU setup and micro tolerance load regulation The Prime Platinum Series achieves 80 PLUS Platinum certification with its 92 percent efficiency at 50 percent system load. Seasonics 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. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan. Seasonics vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level. Seasonics engineers have implemented a new design feature, where instead of cables; the back panel and the PCB are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

(24 reviews)

Premium hybrid fan control Gold plated connectors Cable-free connection design 80 Plus platinum certified Multi-GPU setup and micro tolerance load regulation The Prime Platinum Series achieves 80 PLUS Platinum certification with its 92 percent efficiency at 50 percent system load. Seasonics 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. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan. Seasonics vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level. Seasonics engineers have implemented a new design feature, where instead of cables; the back panel and the PCB are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

Premium hybrid fan control Gold plated connectors Cable-free connection design 80 Plus platinum certified Multi-GPU setup and micro tolerance load regulation The Prime Platinum Series achieves 80 PLUS Platinum certification with its 92 percent efficiency at 50 percent system load. Seasonics 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. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan. Seasonics vast experience in designing the most silent and efficient power supplies on the market was translated into the development of Hybrid Mode; a state-of-the-art fan control that enables users to keep the overall fan noise at the lowest possible level. Seasonics engineers have implemented a new design feature, where instead of cables; the back panel and the PCB are connected by a copper plate. This breakthrough solution not only lowers the chance of production errors during manual insertion but it also improves output power quality.

$736.42 - $1,499.05

in 15 offers

The lowest price for PSUSEA1600PDA3 Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU right now is $736.42 at MegaBuy, compared across 12 retailers.

The all-time low was $538.34 on 31 Dec 2023 — today's price is 37% above the lowest ever. It has been notably cheaper before — worth setting a price alert.

Prices last updated 5 Nov 2026.

Price comparison

Price data powered by pricesAPI.io

Last updated at 05/11/2026 00:01:07

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$787.90

Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=megabuy.com.au&sz=64MegaBuy

$736.42

[PSUSEA1600PDA3] Seasonic PRIME PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

https://www.google.com/s2/favicons?domain=ple.com.au&sz=64PLE Computers

$739.00

Seasonic PRIME PX 1600W Platinum PCIe 5.0 ATX 3.0 Modular 15A PSU

Delivery between 6–17 Nov $25.86

https://www.google.com/s2/favicons?domain=pclan.com.au&sz=64PC Lan

$739.00

Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU PSUSEA1600PDA3

Delivery between 9–12 Nov $11.95

https://www.google.com/s2/favicons?domain=jw.com.au&sz=64JW Computers

$749.00

Seasonic PRIME PX-1600 1600W Platinum ATX 3.1 Fully Modular Power Supply Unit

Free delivery between 9–12 Nov

https://www.google.com/s2/favicons?domain=dicksmith.com.au&sz=64Dick Smith AU

$749.00

Seasonic PRIME PX-1600 1600W Platinum ATX 3.1 Fully Modular Power Supply Unit [SSR-1600PD2]

Delivery $10.95

https://www.google.com/s2/favicons?domain=mightyape.com.au&sz=64MightyApe.com.au

$749.00

Seasonic PRIME PX-1600 1600W Platinum ATX 3.1 Fully Modular Power Supply Unit [SSR-1600PD2]

Delivery between 10–12 Nov $15

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$824.00

Seasonic Prime Px-1600 1600w Platinum Atx 3.1 Fully Modular Power

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=duringdays.com.au&sz=64During Days

$905.99

Seasonic PRIME PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

Delivery between 10–12 Nov $59

https://www.google.com/s2/favicons?domain=hodhealthandhome.com.au&sz=64hodhealthandhome.com.au

$1,012.64

Seasonic Prime Px 1600 1600W Platinum Atx 3.0 Fully Modular Psu Power Supplies

Free delivery

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Maximum Power1600 W
Fans1 x 135 mm Fluid Dynamic Bearing Fan
Max PSU Length210 mm
ModularFull Modular
Energy-Efficient80 PLUS PLATINUM Certified

Price comparison

Updated 4 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$787.90

Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=megabuy.com.au&sz=64
MegaBuy

$736.42

[PSUSEA1600PDA3] Seasonic PRIME PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU

https://www.google.com/s2/favicons?domain=ple.com.au&sz=64
PLE Computers

$739.00

Seasonic PRIME PX 1600W Platinum PCIe 5.0 ATX 3.0 Modular 15A PSU

Delivery between 6–17 Nov $25.86

https://www.google.com/s2/favicons?domain=pclan.com.au&sz=64
PC Lan

$739.00

Out of stock

Seasonic Prime PX-1600 1600W Platinum ATX 3.0 Fully Modular PSU PSUSEA1600PDA3

Delivery between 9–12 Nov $11.95

https://www.google.com/s2/favicons?domain=jw.com.au&sz=64
JW Computers

$749.00

Seasonic PRIME PX-1600 1600W Platinum ATX 3.1 Fully Modular Power Supply Unit

Free delivery between 9–12 Nov

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Maximum Power1600 W
Fans1 x 135 mm Fluid Dynamic Bearing Fan
Max PSU Length210 mm
ModularFull Modular
Energy-Efficient80 PLUS PLATINUM Certified

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