be quiet! Straight Power 12 750W PSU

be quiet! Straight Power 12 750W | Platinum ATX 3.1 PSU

The be quiet! Straight Power 12 750W PSU is a premium ATX 3.1 power supply built for high-performance systems that demand quiet operation, rock-solid stability, and future-proof compatibility. With 80 PLUS Platinum certification, Japanese capacitors, and full modularity, it delivers clean, efficient power with virtually inaudible cooling.

Platinum efficiency for cooler, quieter builds

With up to 93.8% efficiency under typical loads, this PSU reduces wasted energy and heat. That means less strain on your cooling system and quieter operation—ideal for builds where silence matters as much as performance.

Future-proofed for next-gen GPUs

Straight Power 12 supports ATX 3.1 specifications and includes a native 12V-2×6 connector for PCIe 5.1 graphics cards, plus four 6+2-pin PCIe connectors for current-gen GPUs. This versatility ensures compatibility with both today’s hardware and tomorrow’s high-power GPUs.

Handles extreme power spikes with ease

Even under sudden, heavy power demands from modern GPUs, this PSU can handle transient loads up to double its 750W rating. That stability protects your components and ensures uninterrupted performance during intense workloads or gaming sessions.

Silent Wings cooling with smart airflow

The 135mm Silent Wings fan stays virtually inaudible during normal use. Its funnel-shaped intake design improves airflow efficiency, keeping temperatures low without spinning up unnecessarily—perfect for noise-sensitive environments.

Japanese capacitors for long-term reliability

Built with 105°C-rated Japanese capacitors, the Straight Power 12 offers superior stability and durability. These components are rated for higher temperatures and longer lifespans, ensuring consistent performance over years of use.

Modular cables for clean builds

Full modularity lets you use only the cables you need, reducing clutter inside your case. All cables are sleeved for a professional look and easier routing, helping maintain optimal airflow and aesthetics.

Box contents

• be quiet! Straight Power 12 750W PSU
• Modular cables
• Mounting screws
• Cable ties

Check before you buy

• Confirm your case supports ATX PSUs up to 160mm deep
• Verify your GPU uses 6+2-pin or 12V-2×6 connectors
• Check your system’s total power draw against 750W capacity
• Ensure your region’s power grid matches 230V requirements

Frequently Asked Questions

Q: Is this PSU compatible with PCIe 5.0 GPUs?

A: Yes, it supports PCIe 5.1 with the native 12V-2×6 connector and also includes 6+2-pin connectors for current GPUs.

Q: How quiet is the fan under load?

A: The 135mm Silent Wings fan is designed to stay virtually inaudible during normal operation and only speeds up under heavy loads.

Q: Can this PSU handle overclocked systems?

A: Yes, with 750W continuous output and support for double-rated transient loads, it’s well-suited for overclocked builds.

Q: Are the cables braided or just sleeved?

A: The cables are fully sleeved for a clean, professional appearance and easier cable management.

Q: What efficiency rating does this PSU achieve?

A: It achieves up to 93.8% efficiency at 50% load, certified 80 PLUS Platinum.

The Consultant’s verdict & warranty

The be quiet! Straight Power 12 750W is an excellent choice for high-end gaming rigs, content creation workstations, and silent PC builds. Its combination of Platinum efficiency, ATX 3.1 readiness, and long-term reliability makes it a smart investment. Covered by the standard Manufacturer Warranty.