CM 1100W X SILENT EDGE PLAT 230V PSU
£160.61 inc VAT
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About This Item
- 1100 W fanless ATX 3.1 power supply with Platinum efficiency
- Passive cooling design for ultra-quiet operation
- Fully modular cabling for clean build management
- Active PFC with 94% efficiency rating
- Extensive protection features including over current and short circuit
- Supports up to 91.6 A on +12V rail
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Cooler Master X Silent Edge Platinum 1100 | Fanless 1100W ATX 3.1 PSU
The Cooler Master X Silent Edge Platinum 1100 230V power supply unit delivers 1100W of power through an innovative fanless design, making it ideal for noise-sensitive environments and high-performance PC builds that demand absolute silence without compromising reliability.
Key Specifications
| Metric | Spec |
|---|---|
| Power Output | 1100W |
| Efficiency Certification | 80 PLUS Platinum |
| Form Factor | ATX |
| Cooling | Passive (fanless) |
| ATX Version | 3.1 |
| MTBF | 100,000 hours |
Fanless Design for Absolute Silence
Engineered with a completely fanless architecture, the X Silent Edge Platinum 1100 eliminates the noise typically associated with high-power PSUs. The innovative heat pipe and aluminum thermal mold work together to dissipate heat efficiently, ensuring your system remains whisper-quiet even under heavy loads. This makes it perfect for recording studios, home theatres, or anyone who values a completely silent computing environment.
Modular Cabling for Clean Builds
The fully modular design allows you to connect only the cables you need, significantly reducing clutter inside your case. This not only improves airflow but also makes cable management much simpler, resulting in a cleaner, more professional-looking build. The included 90° 12V-2×6 connector provides enhanced durability and can deliver up to 600W to your GPU, making it ready for the latest high-performance graphics cards.
ATX 3.1 Ready for Modern Components
With ATX 3.1 support, this PSU is fully compatible with the latest hardware requirements, including PCIe 5.0 graphics cards. The Active Bridge Rectifier technology, featuring Infineon CoolMOS components, boosts efficiency by up to 2% compared to traditional designs, reducing power loss and operating costs while maintaining rock-solid stability for your components.
Box Contents
- Cooler Master X Silent Edge Platinum 1100 PSU
- Modular cables (various lengths)
- Power cable
- Mounting screws
- User manual
Check before you buy
- Confirm your case has sufficient space for the 150mm x 180mm x 86mm dimensions
- Verify your GPU’s power requirements don’t exceed the 1100W capacity
- Check your motherboard’s ATX 3.1 compatibility if you’re using the latest components
- Confirm you have enough SATA and PCIe connectors for all your drives and expansion cards
Frequently Asked Questions
Q: How does the fanless cooling system work?
A: The PSU uses heat pipes and an aluminum thermal mold to dissipate heat passively without any moving parts.
Q: Is this PSU suitable for gaming PCs?
A: Yes, with 1100W capacity and ATX 3.1 support, it can handle high-end gaming systems and multiple GPUs.
Q: What efficiency rating does this PSU have?
A: It’s 80 PLUS Platinum certified with 94% efficiency, reducing power waste and heat generation.
Q: How many PCIe connectors are included?
A: There are 4x 6+2 pin PCIe connectors plus 1x 12+4 pin connector for high-power graphics cards.
Q: What are the dimensions of this PSU?
A: The PSU measures 150mm (W) x 180mm (D) x 86mm (H), so ensure your case can accommodate it.
The Consultant’s verdict & warranty
The Cooler Master X Silent Edge Platinum 1100 is the ideal choice for enthusiasts building high-performance, noise-sensitive systems who refuse to compromise on power or reliability. Its fanless design, ATX 3.1 compatibility, and Platinum efficiency make it future-proof for demanding builds. Covered by the standard Manufacturer Warranty.
| Cooling | |
|---|---|
| Number of fans | 0 fan(s) |
| Cooling type | Passive |
| Performance | |
| On/off switch | Yes |
| Power supply unit (PSU) form factor | ATX |
| Silent mode | Yes |
| 80 PLUS certification | 80 PLUS Platinum |
| Purpose | PC |
| ATX version | 3.1 |
| Mean time between failures (MTBF) | 100000 h |
| Certification | ErP 2014 Lot 3 |
| Design | |
| 80 PLUS certification | 80 PLUS Platinum |
| Certification | ErP 2014 Lot 3 |
| Product colour | Black |
| On/off switch | Yes |
| Number of fans | 0 fan(s) |
| Cooling type | Passive |
| Power | |
| Total power | 1100 W |
| Power Good signal delay range | 100 - 150 ms |
| AC input voltage | 200 - 240 V |
| AC input frequency | 50/60 Hz |
| Input current | 6.1 A |
| Power Factor Correction (PFC) type | Active |
| Combined power (+3.3V) | 120 W |
| Combined power (+12V) | 1099.2 W |
| Combined power (+5V) | 120 W |
| Combined power (-12V) | 3.6 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 91.6 A |
| Max output current (+5V) | 20 A |
| Max output current (-12V) | 0.3 A |
| Max output current (+5Vsb) | 3 A |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit, Surge & inrush protection (SIP), Under voltage |
| Hold time | 16 ms |
| Efficiency | 94% |
| Ports & interfaces | |
| Motherboard power cable length | 65 cm |
| SATA power cable length | 500,650,800,950 mm |
| Peripheral (Molex) power cable length | 740,620,500,860 mm |
| PCI Express power cable length | 55 cm |
| Motherboard power connector | 24-pin ATX |
| Number of SATA power connectors | 12 |
| Peripheral (Molex) power connectors (4-pin) | 4 |
| EPS power connector (8-pin) | Yes |
| PCI Express power connectors (6+2 pin) | 4 |
| ATX Power connector (24-pin) | Yes |
| Cabling type | Fully-Modular |
| EPS power connector (4+4 pin) | Yes |
| EPS cable length | 65 cm |
| PCI Express power connectors (12+4 pin) | 1 |
| PCI Express power connectors (12+4 pin) cable length | 650 mm |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 40 °C |
| Certificates | |
| Certification | ErP 2014 Lot 3 |
| Compliance certificates | BSMI, CCC, CE, EAC, Federal Communications Commission (FCC), KC, RCM, REACH, UKCA, cUL |
| 80 PLUS certification | 80 PLUS Platinum |
| Weight & dimensions | |
| Width | 150 mm |
| Depth | 180 mm |
| Height | 86 mm |
| Weight | 4.5 kg |
| Packaging data | |
| Package depth | 224 mm |
| Package width | 382 mm |
| Package height | 126 mm |
| Package type | Box |
| Package weight | 5.2 kg |
| Case or master carton quantity | 2 pc(s) |
| Case or master carton dimensions (W x D x H) | 396 x 265 x 250 mm |
| Technical details | |
| Compliance certificates | BSMI, CCC, CE, EAC, Federal Communications Commission (FCC), KC, RCM, REACH, UKCA, cUL |
| Logistics data | |
| Master (outer) cases per pallet | 120 pc(s) |
| Master (outer) case width | 396 mm |
| Master (outer) case length | 265 mm |
| Master (outer) case height | 250 mm |
| Products per master (outer) case | 2 pc(s) |
| Other features | |
| EPS cable length | 65 cm |
| Identifiers | |
| Distributor SKUs | MPSB001AZBPBUK, STD10229090, CLMPSB001AZBPBUK |
| Additional EANs | 0884102115400 |

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