Introducing the Signature 2200 Platinum ATX 3.1 Power Supply. The Signature 2200 Platinum ATX3.1 is Antec’s high-performance ATX 3.1 power supply, designed to support modern, power-demanding systems. It features key industry standards including ATX 3.1 and PCIe 5.1 compliance, 100% high-quality Japanese capacitors, fully modular cabling, and up to 94% efficiency certified by 80 PLUS® Platinum. Built for reliability and efficiency, the Signature 2200 is a solid foundation for advanced PC builds.

With robust GPU support, server-grade PhaseWave™ design, and quiet thermal performance, this power supply is engineered for AI computing, professional workloads, workstations, and next-generation PC enthusiasts. Delivering reliable, high-efficiency power, it’s ideal for AI-driven applications.

ATX 3.1 & PCIe 5.1 Compatible

Fully compliant with the latest ATX 3.1 standard, the Signature 2200 ensures top-tier reliability and power efficiency. The bundled PCIe 5.1 12V-2x6 GPU cables provide robust support for modern high-performance graphics cards.

100% High-Quality JP Capacitors

Built entirely with premium Japanese capacitors, the Signature 2200 Platinum ATX3.1 delivers ultra-tight voltage regulation, minimal ripple, and long-term stability.

PhaseWave ^TM Design

Server-grade full-bridge LLC architecture with synchronous rectification and DC-DC topology ensures consistently efficient and stable power delivery across all rails.

CircuitShield^TM

The full suite of industrial-grade protections includes OCP, OVP, UVP, SCP, OPP, OTP, SIP, and NLO, providing the best dependability for your power supply in any situation.

12-Year Warranty

Pushing the standard for excellence with the full-suite industrial protections, backed by a 12-year warranty duly committed by Antec.

Zero RPM Manager

Smart fan control system with a true fan-off mode during low power draw, ensuring silent operation and extended fan lifespan.

135mm FDB Silent Fan

Equipped with a whisper-quiet 135mm fluid-dynamic bearing fan for high airflow, durability, and near-silent operation even under load.

Full Modular Cable Management

Reduces cable clutter and improves airflow with fully modular cables. Use only what you need for a clean, streamlined build and optimal thermal performance.

Compact High-Power Design

Delivering up to 2200W of power, the Signature 2200 Platinum ATX 3.1 is built in a compact chassis, allowing for greater compatibility with a wide range of high-end cases compared to many other high-wattage PSUs.