Corsair

Corsair AXi Series

Status: Corsair AXi Series (1600W 80 Plus Titanium fully modular ATX power supply): Unavailable on Amazon as of 2026-10-21 10:12 UTC. Closest in-stock match (same 1600W 80 Plus Titanium fully modular ATX power supply): Seasonic Prime TX-1600 1600W Power Supply ATX…, $559.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $559.99 🛒 Search eBay for this model

Bottom line: The Corsair AXi Series: 1600W continuous output with 80 PLUS Titanium certification; main trade-off: 1600W is far more capacity than most single-GPU gaming builds need.

Unavailable on Amazon as of 2026-10-21 10:12 UTC

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Currently unavailable on Amazon. Not the same product — 2 in-stock alternatives with matching specs:

Same 1600W 80 Plus Titanium fully modular ATX power supply: Seasonic Prime TX-1600 1600W Power Supply ATX… — $559.99 on Amazon as of 2026-10-21 12:20 UTC (price may vary).

View Current Price — $559.99

Same 1600W 80 Plus Titanium fully modular ATX power supply: Seasonic PRIME TX-1600 Noctua Edition — $754.00 on Amazon as of 2026-10-21 04:20 UTC (price may vary).

View Current Price — $754.00

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

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

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

✓ 1600W continuous output with 80 PLUS Titanium certification
✓ Rated for over 94% efficiency, cutting waste heat under heavy load
✓ GaN totem-pole PFC transistors allow a smaller form factor than silicon designs
✓ Switch between single- and multi-rail OCP on the fly in CORSAIR LINK
✓ Zero RPM fan mode for near-silent operation at light loads

Cons

✗ 1600W is far more capacity than most single-GPU gaming builds need
✗ Digital monitoring and control depend on CORSAIR LINK software
✗ Flagship Titanium GaN design costs more than Gold-rated alternatives
✗ Sustained draw near 1600W leaves little headroom on a shared 120V circuit

Manufacturer description

The Corsair AX1600i is a 1600W fully modular ATX power supply for workstations, multi-GPU rigs and high-end gaming builds that need headroom without wasting energy. It is certified 80 PLUS Titanium and rated for over 94% efficiency, so less of the power it draws from the wall turns into heat inside your case. Corsair built the AX1600i around totem-pole PFC with gallium nitride (GaN) transistors. Corsair says this design is more efficient than traditional silicon parts and fits in a smaller form factor. Inside, 100% 105°C-rated Japanese capacitors support very stable voltages and ultra-low…

SpecPicks Verdict

SpecPicks scored Corsair AXi Series using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Corsair'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.

Frequently Asked Questions

Is the Corsair AX1600i enough for a multi-GPU build?

It delivers 1600W of continuous power, which gives a lot of headroom for multi-GPU workstations and high-end gaming rigs. Check the product listing for exact connector counts, and confirm your GPUs' power requirements before buying.

How efficient is the AX1600i?

It is certified 80 PLUS Titanium and rated for over 94% efficiency. Corsair credits this to totem-pole PFC with gallium nitride (GaN) transistors and 100% 105°C Japanese capacitors.

What can I monitor or change with CORSAIR LINK?

CORSAIR LINK lets you monitor the PSU's voltages and efficiency, adjust fan speeds, and switch between single-rail and multi-rail overcurrent protection (OCP) on the fly.

Is the AX1600i loud?

It has a Zero RPM fan mode that keeps the fan stopped at light loads for near-silent operation. You can also adjust fan speeds in CORSAIR LINK software.

What warranty comes with the Corsair AX1600i?

The product context does not state warranty terms. Check the current product listing or Corsair's website for warranty coverage on model CP-9020087-NA.

Key Features

Delivers 1600W of continuous ultra-stable 80 PLUS Titanium efficiency power
100% 105°C Japanese capacitors top-specification internal components and digital design deliver over 94% efficiency
The only enthusiast PSU to use Totem-pole PFC Gallium Nitride (GaN) transistors for superior efficiency in a smaller form-factor over traditional silicon parts
World Class Electrical Performance for incredibly stable voltages and ultra-low ripple noise
Powerful CORSAIR LINK software monitoring and control allows you to supervise and adjust PSU power settings and switch from single to multi overcurrent protection (OCP) on-the-fly

Full Specifications

Brand	Corsair
Wattage	1600
Model Name	ax1600i,series
Form Factor	ATX
Item Weight	5.8 Pounds
Connector Type	ATX
Cooling Method	Air
Output Wattage	1600 Watts
Compatible Devices	Personal Computer
Item dimensions L x W x H	7.87 x 5.91 x 3.39 inches
Full listing title	Corsair AXi Series, AX1600i, 1600 Watt, 80+ Titanium Certified, Fully Modular - Digital Power Supply (CP-9020087-NA)

Ready to buy?

Amazon shows no buyable offer for Corsair AXi Series at the last check. The closest in-stock match with the same 1600W 80 Plus Titanium fully modular ATX power supply is Seasonic Prime TX-1600 1600W Power Supply ATX…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $559.99