
MSI 1200W PLATINUM FM MAG A1200PLS PCIE5
MSI MAG A1200PLS PCIE5 1200W 80 PLUS Platinum Fully Modular ATX 3.1 Power Supply
The MSI MAG A1200PLS PCIE5 is a 1200W power supply designed to deliver stable, efficient power for gaming PCs, creator systems and compatible workstations. Its 80 PLUS Platinum rating helps reduce wasted energy and heat, while the fully modular cable system is designed around the needs of the listed model.
ATX 3.1 and PCIe 5.1 ready support makes the unit suitable for compatible current-generation hardware. 1 x native 600W 12V-2x6 connector plus 4 x 6+2-pin PCIe connectors provides graphics-card power for supported configurations, subject to the system's complete power requirement.
Key Features
- 1200W continuous power output
- 80 PLUS Platinum
- Fully modular
- ATX 3.1 and PCIe 5.1 ready
- 1 x native 600W 12V-2x6 connector plus 4 x 6+2-pin PCIe connectors
- 135mm fluid dynamic bearing fan
- 105°C-rated main capacitor
- High-efficiency Platinum platform with active PFC
- Supports total power excursions of up to 235 percent for short periods
- Over-voltage, under-voltage, over-current, over-power, over-temperature and short-circuit protection
- 10 years manufacturer warranty
- GPU Safeguard, Fan Safeguard, dual-colour 12V-2x6 cable and embossed modular cabling
Stable Continuous Power
The unit provides up to 1200W of continuous output. A power supply should be selected according to the complete system specification, including the processor, graphics card, storage devices, cooling hardware and expected upgrade path.
Efficiency and Reduced Heat
The 80 PLUS Platinum certification describes the PSU's energy-conversion efficiency under defined test conditions. Higher efficiency can reduce the amount of electrical energy lost as heat, helping the cooling system operate more effectively.
Modern Graphics-Card Power
1 x native 600W 12V-2x6 connector plus 4 x 6+2-pin PCIe connectors. Where a native 12V-2x6 or 16-pin cable is supplied, it should be inserted fully at both ends and routed without a tight bend immediately beside the connector.
Cable Management
The Fully modular design determines how the cables are connected. Only the required modular cables need to be installed, helping reduce unused cable clutter and improving access within the case.
Cooling and Noise
Cooling is provided by a 135mm fluid dynamic bearing fan. Fan speed and acoustic output vary with temperature, input voltage and power load. Adequate ventilation around the PSU intake and exhaust remains important.
Electrical Design and Reliability
High-efficiency Platinum platform with active PFC. 105°C-rated main capacitor. Over-voltage, under-voltage, over-current, over-power, over-temperature and short-circuit protection help protect the PSU and connected components from abnormal electrical conditions.
System Compatibility
The PSU uses the ATX format and measures 150 x 150 x 86mm. Before ordering, confirm the PC case supports the unit's length and cable-exit position. The motherboard, CPU and graphics-card connector requirements should also be checked against the supplied cable set.
Power and Physical Specification
| Brand | MSI |
| Model | MAG A1200PLS PCIE5 |
| Maximum Power | 1200W |
| Efficiency Certification | 80 PLUS Platinum |
| Form Factor | ATX |
| Power Supply Standard | ATX 3.1 and PCIe 5.1 ready |
| Cable System | Fully modular |
| Cooling | 135mm fluid dynamic bearing fan |
| Dimensions | 150 x 150 x 86mm |
| Input | 100 to 240V AC |
| Power Factor Correction | Active PFC |
| Colour | Black |
| Manufacturer Warranty | 10 years |
| VIP SKU | 129607 |
Power Connections
| Motherboard and CPU Power | Included for compatible ATX motherboards and processors |
| Graphics Power | 1 x native 600W 12V-2x6 connector plus 4 x 6+2-pin PCIe connectors |
| Connector Set | 1 x 24-pin ATX, 2 x CPU power, 1 x 12V-2x6, 4 x 6+2-pin PCIe, 6 x SATA and 3 x peripheral |
| Cable Design | Fully modular |
Protection Features
Over-voltage, under-voltage, over-current, over-power, over-temperature and short-circuit protection. Protection circuits respond to abnormal conditions but do not replace correct installation, suitable mains protection or an appropriately sized PSU.
Ideal For
- Custom gaming PCs
- Creator and streaming systems
- Performance desktop workstations
- PC upgrades requiring dependable power
- Systems using compatible modern graphics cards
Package Contents
- Power supply unit
- UK AC power cable
- Mounting screws
- Product documentation
Please note: PSU cables are not universally interchangeable between different brands or product families. Use only the cables supplied with this exact power-supply model or replacement cables explicitly approved by the manufacturer. Available power on regional mains input can vary on exceptionally high-wattage units.
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