be quiet! System Power 11 750w Power Supply
£63.48
In stock
SILENT ESSENTIAL POWER
be quiet! System Power 11 750W
Proven reliability and quiet operation for value-oriented systems. ATX 3.1 compatibility, PCIe 5.1 support and stable 12V performance make System Power 11 750W the ideal choice for dependable modern builds.
80 PLUS® Bronze (Up to 90%)
ATX 3.1 & PCIe 5.1 Ready
Strong 12V Rail
System Power 11 750W — reliable performance, quiet cooling and full compliance with modern ATX 3.1 standards.
Core Highlights
- ATX 3.1 PSU with support for PCIe 5.1 GPUs
- One PCIe 5.1 12V-2×6 (600W) connector
- Three PCIe 6+2-pin connectors
- Temperature-controlled 120mm quality fan
- Stand-by drain of less than 0.15 watts
Future-Proof Your System
System Power 11 750W fulfills all ATX 3.1 specifications and features native integration of the 12V-2×6 connector for next-generation PCIe 5.1 graphics cards, alongside PCIe 6+2 connectors for current-gen GPUs. It handles power excursions up to double its rated power with ease, making it versatile for systems of today and tomorrow.
PCIe 5.1
12V-2×6 • 600W
Very Quiet Operation
Equipped with a temperature-controlled 120mm quality fan, System Power 11 750W delivers the low-noise operation that be quiet! is known for, offering remarkable quietness at this price level.
High Performance for Your System
Provides stable and dependable power for CPU and GPU, ensuring steady and reliable operation even when your PC meets an unexpectedly heavy load.
80 PLUS® Bronze Certification
Certified 80 PLUS® Bronze with efficiency of up to 90.0%, delivering convincing power-saving operation and reduced energy waste.
Up to 90.0% Efficiency
Strong 12V Rail & Full Protection
A strong 12V rail ensures stable PCIe graphics support.Comprehensive safety protections defend against overcurrents, over- and undervoltages, overtemperature, short circuits and overloads, keeping your valuable components safe.
Full Safety Protections
General Specifications
Performance & Efficiency
Cooling & Acoustics
Power Rails & Output
Connectivity & Cables
Protection & Safety
Physical & Build
| Manual | |
| Datasheet | |
| Cables | JPG |
| Performance curve | JPG |
About be quiet!
be quiet! is a premium German PC hardware brand, recognised worldwide for designing high-performance components with an uncompromising focus on silence.
Founded in Germany, be quiet! has earned the trust of enthusiasts, gamers, creators and system builders the world over through exceptional build quality, reliability and near-silent operation.
German Engineering
Premium Components
Long Warranties
Designed in Germany
Every be quiet! product is engineered and quality-controlled in Germany, with meticulous attention to acoustics, airflow, thermals and long-term durability.
That engineering-first approach means each one performs exactly as intended: quietly and efficiently.
What be quiet! is known for
- Ultra-quiet, high-efficiency power supplies
- High-performance CPU coolers with silent operation
- Low-noise PC cases optimised for airflow and reduced vibration
- Premium fans engineered for strong airflow at minimal noise
Trusted by enthusiasts and professionals
be quiet! hardware is widely used in gaming PCs, professional workstations, content-creation systems, and quiet home and office builds.
As an authorised UK service centre, we supply genuine be quiet! products backed by full manufacturer warranty and local UK support.
Shipping & Delivery Information
Dispatch cut-off: 2:00pm
UK shipping only
- 🚚
UK mainland: Free standard next-day / 2-day delivery (subject to courier terms). - ⏱️
Same-day dispatch: Order before 2:00pm Monday–Friday. - 📍
Extended areas: Highlands, NI, ROI & Channel Islands typically 2–5 working days. - 🛑
No collection: We ship orders only.
Shipping Only
Please note that we do not offer collections. All orders are shipped via our courier partners.
Delivery services are subject to courier availability and local conditions.
Weekend Orders
Orders placed after 2:00pm on Friday or during the weekend
are processed on the next working day (normally Monday).
Bank holidays may also affect dispatch and delivery times.
UK Delivery
Free standard next-day / 2-day to UK mainland (subject to courier terms)
- ✅Free standard delivery on all orders
- 📦UK mainland only for next-day / 2-day services
- 🕑Cut-off: order before 2:00pm (Mon–Fri) for same-day dispatch
Extended Delivery Areas
Typically 2–5 working days
- 🏔️Scottish Highlands
- 🇬🇧Northern Ireland
- 🇮🇪Republic of Ireland
- 🏝️Channel Islands
Delivery times can vary depending on courier availability and local conditions.
International Shipping
We do not ship outside the UK
Delivery times are estimates and may be affected by courier delays outside of our control.
