MSI MAG A650BN 650W power supply
Compact 650 W ATX unit with 80 Plus Bronze efficiency, a 120 mm low-noise fan, active PFC, DC-DC design and full protection circuits
- Max wattage650 W
- Fan configuration1 × 120 mm
- Power factor correctionActive
- PSU length limit140 mm
- Efficiency certification80 PLUS BRONZE Certified
- Built-in protectionOCP / OVP / OPP / OTP / SCP
Model ATX 80+ Bronze (650W)
- 80 PLUS Bronze certification reduces energy waste and cuts running costs
- 120 mm sleeve-bearing fan keeps temperatures low while staying quiet
- DC-to-DC circuit design steadies voltage rails for stable power delivery
- Five protection circuits (OCP, OVP, OPP, OTP, SCP) guard components against faults
- 140 mm compact length fits tight cases without cable clutter
Entry-level 650 W ATX power supply
The MSI MAG A650BN delivers 650 W of continuous power for mainstream desktop builds. It targets first-time builders who need a straightforward, reliable unit without modular cables. The 80 PLUS Bronze rating means typical efficiency above 80 percent at common loads. A single 12 V rail rated at 54 A supplies the bulk of system power.
Fixed-cable layout fits compact cases
All cables are permanently attached, so there are no extra connectors to lose or route. The 140 mm depth leaves room in smaller chassis, but the stiff 24-pin bundle can be tight behind the motherboard tray. Builders should plan the EPS and PCIe routes before seating the board. The sleeve-bearing 120 mm fan spins up only when needed.
Steady output under prolonged load
DC-to-DC circuitry keeps the 12 V rail stable during extended gaming or rendering sessions. Active PFC corrects the input current across 100 to 240 V mains, reducing harmonic distortion. Protection circuits cover over-current, over-voltage, over-power, over-temperature and short-circuit events. The Bronze-rated platform maintains efficiency without excessive heat buildup over hours of use.
How it compares
Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.
- Price $48.99
- Cheaper than about 91% of the 10,869 comparable items (median $142.99).
- Max wattage 650 W
- Lower than about 70% of the 930 comparable items (median 850 W).
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Specifications
| Product | |
|---|---|
| Brand name | MSI |
| Model name | MAG A650BN |
| Product color | Black |
| Product type | Intel ATX 12 V |
| Ports & slots | |
| Output type | +3.3 V@20A, +5 V@20A, +12 V@54A |
| Connection types | 1 × 24 pin (20+4) ATX 1 × 8 pin (4+4) EPS (CPU) 2 × 8 pin (6+2) PCIe 5 x SATA 2 x Molex 1 x FDD |
| Power | |
| Max wattage | 650 W |
| Power factor correction | Active |
| Efficiency certification | 80 PLUS BRONZE Certified |
| Built-in protection | OCP / OVP / OPP / OTP / SCP |
| Supply voltage | 100–240 V |
| AC input frequency | 50/60 Hz |
| Rated input current | 115Vac/10.0A max. 230Vac/5.0A max. |
| Size & build | |
| Product dimensions | 3.39 in × 5.91 in × 5.51 in |
| Product weight | 4.37 lb (1.98 kg) |
| Shipping weight | 2.09 kg |
| Package size | 249 × 185 × 109 mm |
| Compatibility | |
| PSU length limit | 140 mm |
| More details | |
| Fan configuration | 1 × 120 mm |
Other versions of this model
4 more in the same range
Questions about this item
Will this 140 mm long unit fit in my compact case?
The power supply measures 140 mm in length, so verify your chassis clearance before buying.
Does the non-modular cable set include enough connectors for a mid-range GPU and several drives?
It ships with two 8-pin (6+2) PCIe plugs, five SATA connectors, two Molex plugs and one FDD lead.
What protections guard my components against power faults?
Built-in safeguards cover over-current, over-voltage, over-power, over-temperature and short-circuit events.
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