MSI 80 Plus Bronze Power Supplies
MSI MAG A550BN 550W 80 Plus Bronze Power Supply
MSI MAG A650BN 650W 80 Plus Bronze Power Supply
MSI MAG A750BN PCIE5 750W 80 Plus Bronze Power Supply
The MSI 80 Plus Bronze power supplies here come from the MAG series and run from the MAG A550BN (550W) through the MAG A650BN (650W) to the MAG A750BN PCIE5 (750W). All three are ATX units with non-modular cables. The A550BN uses a low-noise 120mm fan. The A650BN and A750BN PCIE5 add a DC to DC circuit, and the A750BN PCIE5 lists active PFC and PCIe 5.0 support. MSI covers them with a 5 year warranty.
Wattage is the main decision. The A550BN suits a mainstream processor with an entry-level graphics card, or a build with no discrete card. The A650BN leaves headroom for a mid-range card. The A750BN PCIE5 is the one to pick for a higher-end card or a newer PCIe 5.0 graphics card. Check the PSU recommendation your graphics card maker gives and add some margin for upgrades. Since all three are non-modular, every cable stays attached, so plan where the unused leads will sit in your cabinet.
Frequently asked questions
Are these MSI Bronze PSUs modular? No. The MAG A550BN, A650BN and A750BN PCIE5 all have non-modular, fixed cables.
Which model supports PCIe 5.0 graphics cards? The MAG A750BN PCIE5 is the model on this page listed with PCIe 5.0 support.
What does 80 Plus Bronze certification mean? It means the unit is tested to convert at least 82 to 85 percent of wall power into usable power at typical loads, which keeps waste heat and electricity use down.