MSI MAG A750BN PCIE5 750W 80 Plus Bronze PSU: features, specs and fit

The MSI MAG A750BN PCIE5 is a 750W ATX power supply for gaming and general desktop PCs. MSI describes it as a compact, non-modular unit with a low-noise fan, and it includes a 12V-2x6 cable for recent graphics cards. It is rated 80 PLUS Bronze and carries a five-year limited warranty.

What 750W and 80 PLUS Bronze mean

The 750W figure is the maximum power the supply can deliver to the components in your PC. It is not what the system draws all the time; most PCs use far less except under heavy load. 80 PLUS Bronze is an efficiency certification, which typically means the supply converts at least about 82 to 85 percent of the power drawn from the wall into usable DC power at the tested load levels. Higher tiers such as Silver, Gold and Platinum are more efficient, but Bronze is a common level for mainstream builds.

Non-modular design

"Non-modular" means the cables are permanently attached to the supply. You cannot remove the ones you do not use, so unused cables need to be tied away inside the case. In return, there are no extra connection points between the supply and its cables. In a compact case, check there is room to route the fixed cables neatly.

PCIe 5 readiness and the 12V-2x6 cable

The product name and listing mention PCIE5, listed as PCIE 5.1, and a 12V-2x6 cable. This is the high-power connector used by many recent graphics cards. Cards with this connector can typically be plugged in directly without adaptors. If you plan to use one, check that the card's power requirements match what a 750W supply can deliver, and follow the card maker's advice for seating the connector fully.

Compact size and cooling

MSI describes the unit as compact. The listing shows dimensions of 11.5 x 9.3 x 5.0 inches and a weight of 4.5 lb (about 2 kg), which probably includes packaging and cables, so check MSI's specification sheet for the exact unit size. The fan is described as low-noise.

Warranty

MSI provides a five-year limited warranty, which it says supports long-term reliable operation.

Who it suits

It suits builders putting together a mainstream gaming or office desktop with one graphics card, particularly one using the newer 12V-2x6 connector, and people who want a straightforward ATX supply without the extras of modular cabling.

What to check before you buy

• Total power: add up your components' peak power, and check your graphics card maker's recommended supply.
• Connector types: confirm the cables include the PCIe, CPU, SATA and 12V-2x6 connectors your build needs.
• Case fit: check your case takes a standard ATX supply and has room for fixed cables.
• Cable length: make sure the cables reach your motherboard and cards in a larger case.
• Noise: confirm the fan behaviour described by MSI suits your use.
• Installation: follow the manual and local electrical rules.

The short version

• A 750W ATX power supply from MSI's MAG range, model A750BN PCIE5.
• 80 PLUS Bronze certified, non-modular, with a low-noise fan.
• Includes a 12V-2x6 cable and is listed as PCIE 5.1.
• Five-year limited warranty.
• Compact for its class, according to MSI.

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