MSI MAG SERIES POWER SUPPLY
MSI MAG A750BN PCIE5 750W 80 PLUS Bronze Power Supply
Reliable 750W power delivery with Bronze-rated efficiency, DC-to-DC conversion, active PFC and PCIe 5.0 GPU connectivity for compatible desktop PC builds.
Key Features
750W Power Output
Provides 750W of rated output, with a +12V rail rated at 62.5A for compatible CPU and graphics-card power requirements.
80 PLUS Bronze Efficiency
Bronze-certified power conversion with advertised efficiency of up to 85% under specified operating conditions.
PCIe 5.0 GPU Connectivity
Includes one 16-pin PCIe 5.0 GPU power connector rated for up to 300W. Check the graphics card's exact connector and power requirements before purchase.
DC-to-DC Conversion
The DC-to-DC power design supports conversion to the lower-voltage rails for compatible system components.
120mm Cooling Fan
A 120mm fan provides airflow to cool internal components during operation. Fan noise and speed depend on operating conditions.
Essential Circuit Protection
Includes over-current, over-voltage, over-power, over-temperature and short-circuit protection for supported fault conditions.
Features & Technology
The MSI MAG A750BN PCIE5 combines a 750W rated output with a single +12V rail capable of delivering up to 62.5A. This rail supports the primary power demands of compatible processors and graphics cards within the PSU's overall power limit.
Its DC-to-DC conversion design and active power factor correction are intended to support efficient power conversion and power-factor performance. The 80 PLUS Bronze certification indicates that the PSU meets defined efficiency requirements under specified test conditions.
The PCIe 5.0 16-pin GPU connector is rated for up to 300W. This is an important distinction when comparing this original PCIE5 model with later A750BN variants that specify a different 16-pin power rating.
The non-modular cable design keeps all cables attached to the PSU. This can be straightforward to install, but unused cables need to be managed inside the PC case.
Technical Specifications
Specifications refer to the original MAG A750BN PCIE5 model. MSI lists different specifications for the PCIE5 II and PCIE5 III variants; verify the exact model on the retail box before purchase.
Recommended Use Cases
Mainstream Gaming PCs
Suitable for compatible gaming systems whose CPU, GPU and total power requirements fit within the PSU's 750W capacity.
Home and Office Desktops
Provides power for compatible desktop configurations used for productivity, communication, study and everyday computing.
Entry-Level Content Creation
Can support compatible editing and creative systems when the selected processor, graphics card and peripherals remain within the power budget.
PCIe 5.0-Compatible Builds
Offers a 16-pin PCIe 5.0 GPU connection rated for up to 300W for compatible graphics cards that support this power input.
Before You Buy
- Verify that the product is the original MAG A750BN PCIE5. The PCIE5 II and PCIE5 III versions have different specifications.
- The original PCIE5 model's 16-pin GPU connector is rated for up to 300W. Do not assume it supports the higher power rating of newer revisions.
- Check the GPU manufacturer's recommended PSU wattage, connector requirements and power limits before buying.
- This is a non-modular power supply. Its cables remain attached, so plan cable routing and case clearance accordingly.
- Confirm that the 140 × 150 × 86mm PSU dimensions fit your cabinet and allow adequate ventilation.
Frequently Asked Questions
1. Is the MSI MAG A750BN a 750W power supply?
Yes. The MAG A750BN PCIE5 is rated for 750W of output, with a +12V rail rated at 62.5A.
2. Is the MSI MAG A750BN modular?
No. The original MAG A750BN PCIE5 is non-modular, meaning its power cables are permanently attached to the unit.
3. What does 80 PLUS Bronze mean?
It is an efficiency certification indicating that the PSU meets defined power-conversion efficiency requirements under specified test conditions. MSI advertises efficiency of up to 85% for this model.
4. Does this model support PCIe 5.0 graphics cards?
Yes. It includes a 16-pin PCIe 5.0 GPU power connector rated for up to 300W. Check your graphics card's connector and power requirements to confirm compatibility.
5. What cooling fan does the MAG A750BN PCIE5 use?
MSI lists a 120mm fan with sleeve-bearing specifications for the original PCIE5 model.
6. Which protection features are included?
The official specification lists OCP, OVP, OPP, OTP and SCP: over-current, over-voltage, over-power, over-temperature and short-circuit protection.
7. Is the MAG A750BN PCIE5 the same as the PCIE5 III?
No. These are distinct variants. The original PCIE5 lists a 300W PCIe 5.0 connector, while the PCIE5 III lists a 450W PCIe 5.1 connector and a hydraulic-bearing fan. Verify the exact model before purchase.
8. What are the dimensions of the MSI MAG A750BN?
The original PCIE5 model measures 140 × 150 × 86mm. Confirm the case's PSU clearance and cable-routing space before installation.
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