Corsair AX1600i
Expert rating9 / 10
- Wattage:
- 1600 W
- 80 PLUS Rating:
- Titanium
- Modularity:
- Fully Modular
- ATX Standard:
- ATX 2.x
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Manufacturer: Corsair Last updated: 2026-09-12
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Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier) Review
For a workstation or extreme multi-GPU build that needs 1600W of 80 PLUS Titanium power with real per-rail digital monitoring, the Corsair AX1600i has been the benchmark digital PSU since it launched and still holds up against newer ATX 3.1 units.
We'd point serious multi-GPU or dual-CPU workstation builders here over almost anything else at this wattage: the Corsair Link/iCUE software gives per-rail voltage, current, and power readouts that no analog PSU can match. It lacks a native 12V-2x6 connector, so RTX 5090 owners will need Corsair's adapter cable.
Digital Monitoring
The AX1600i's standout feature is real-time telemetry through Corsair iCUE: per-rail voltage, wattage, and efficiency readouts, plus the ability to set custom fan curves and OCP thresholds. No other PSU in this list offers that level of visibility.
Comparison to Alternatives
Against the MSI MEG Ai1600T PCIE5, the MSI is the newer part with a native 12V-2x6 connector and ATX 3.1 compliance, while the AX1600i counters with a decade of proven reliability and Corsair's software ecosystem. Against the Corsair HX1500i, the AX1600i adds 100W of headroom, full digital rail monitoring, and a longer warranty, at a meaningfully higher price.
Specifications
Identity
| Brand | Corsair |
|---|---|
| Model Number | AX1600i |
Output and rails
| +12V Rail Amperage | 133.3 A |
|---|
Standards and compliance
| Hold-Up Time | 26.7 ms |
|---|
Efficiency and noise
| Measured Avg Efficiency | 92.22 % |
|---|---|
| Measured Average Noise | 25.6 dBA |
Connector inventory
| EPS 8-pin Connectors | 2 |
|---|---|
| SATA Connectors | 16 |
| Molex Connectors | 9 |
Form factor and fit
| Length | 200 mm |
|---|---|
| Colour | Black |
Cooling
| Fan Bearing | Fluid Dynamic |
|---|---|
| Zero-RPM Switchable | Yes |
Build quality
| MTBF | 100000 hours |
|---|
Cables
| Modularity | Fully Modular |
|---|
Monitoring, protection and price
| Protections | OCP, OVP, OPP, SCP, OTP, UVP |
|---|---|
| Digital Monitoring | Yes |
| Price | 579.99 USD |
| Warranty | 10 years |
| Wattage | 1600 W |
|---|---|
| 80 PLUS Rating | Titanium |
| ATX Standard | ATX 2.x |
| Form Factor | ATX |
| Cybenetics Efficiency | Titanium |
| Cybenetics Noise | A- |
| 12V-2x6 Connectors | 0 |
| Zero-RPM Mode | Yes |
| Sleeved Cables | No |
| PCIe 8-pin Connectors | 10 |
| Connector Count | 1x 24-pin ATX, 2x EPS 4+4, 10x PCIe 6+2-pin, 16x SATA, 9x Molex, 2x FDD adapter |
| Fan Size | 140 mm |
| Fan Model / Bearing | 140mm NR140P, fluid dynamic bearing |
| Japanese Capacitors | Yes |
| Cable Lengths | 24-pin 600mm, EPS 650mm, PCIe 650mm and 680+100mm, SATA 450+110+110+110mm and 550+110mm, Molex 450+100+100mm |
| Source URL | https://www.corsair.com/us/en/p/psu/cp-9020087-na/ax1600i-digital-atx-power-supply-1600-watt-fully-modular-psu-cp-9020087-na |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating9 / 10
Still the digital-monitoring benchmark for extreme multi-GPU and workstation builds, docked slightly for lacking a native 12V-2x6 connector.
Best for
- Dual/triple-GPU workstation and rendering rigs
- Overclockers who want per-rail digital telemetry
- Extreme builds needing 1600W of Titanium-rated headroom
Not for
- Anyone wanting a native ATX 3.1 12V-2x6 cable out of the box
- Single-GPU gaming builds (massive overkill)
- Budget-conscious buyers
FAQs
What are the key specifications of the Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier)?
The Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier) is a power supply from Corsair. Key specs: Wattage 1600 W, 80 PLUS Rating Titanium, Cybenetics Efficiency Titanium, Cybenetics Noise A, Modularity Fully Modular.
Will the Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier) work with my current setup?
The Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier) lists Wattage is 1600 W. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier) best suited to?
It suits dual/triple-gpu workstation and rendering rigs, overclockers who want per-rail digital telemetry, extreme builds needing 1600w of titanium-rated headroom.
What are the drawbacks of the Corsair AX1600i (1600W/80+ Titanium/Digital/Fully Modular/Flagship Extreme Tier)?
It is a poor fit for anyone wanting a native atx 3.1 12v-2x6 cable out of the box, single-gpu gaming builds (massive overkill), budget-conscious buyers.
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