This article covers 静かに! システムパワー 11 750W.

Overview

be quiet! is a German PC component manufacturer known for silent operation and high build quality. The System Power 11 750W sits in the entry-mid tier of their power supply lineup. With a rated output of 750W and 80PLUS Bronze certification, it can handle a wide range of builds, from standard gaming PCs to workstations. A 120mm silent fan and optimized airflow keep noise levels low even under load. Despite its entry-level positioning, it uses DC-DC converter technology for stable voltage regulation. A 5-year warranty adds peace of mind, making it a solid cost-effective choice.

Compatibility Guide

The unit uses the standard ATX (PS/2) form factor and fits most ATX and micro-ATX cases. Cables are fully fixed (non-modular) and include a 20+4 pin main connector, a 4+4 pin EPS12V, four 6+2 pin PCIe connectors, plus SATA and peripheral cables. Cable length is adequate for typical mid-tower chassis. The 750W capacity pairs well with mid-range CPUs (e.g., Core i5 / Ryzen 5) and mid-range GPUs (RTX 4060 / RX 7600 class). For high-end builds (i7/Ryzen 7 + high-end GPU), consider an 850W or higher model.

Product Info

Released in 2023, the System Power 11 750W carries an estimated retail price of around ¥10,000 (softer price in Japan ~¥24,000). Its 80PLUS Bronze certification delivers about 87%+ efficiency under typical loads. The 120mm rifle-bearing fan achieves noise levels as low as 28.4 dBA at full load. MTBF is rated at 100,000 hours, and the unit comes with a 5-year manufacturer warranty. Positioned in the entry-mid tier, it suits builders who value quiet operation and reliability without breaking the bank.

Best Use Cases

First, budget-conscious builders who want a quiet PC: the Silent Wings-derived fan keeps ambient noise minimal. Second, anyone assembling a general-purpose gaming or productivity PC that needs stable power delivery for everyday tasks. Third, users building a secondary PC or media server where cost efficiency is key. The 750W headroom easily supports additional drives and fans.

Things to Consider

The non-modular cable design makes cable management more challenging, especially in compact cases. If you rely on neat internal layouts, consider a semi- or fully-modular unit. Additionally, 80PLUS Bronze is an entry-level efficiency rating; users seeking higher efficiency (Gold or Platinum) should look at pricier alternatives. The unit lacks a native 12VHPWR connector, so using modern high-end GPUs (RTX 4070 Ti SUPER and above) may require an adapter. For overclockers or power-hungry builds, a higher wattage unit is advisable. Comparable alternatives include Corsair's CX series and Thermaltake's Smart series.

Product Disclosure (Amazon)

  • Manufacturer: be quiet!
  • Seller: TAISEI商店
  • Fulfilled by: TAISEI商店
  • ASIN: B0F5WZZH54
  • Note: This article covers a manufacturer-made product based on Amazon listing details.