Retailer photo of MSI MAG A550BN. View this offer in Where to buy
MSI · PSU · ATX 2.x
MSI MAG A550BN
The current MSI MAG A550BN price from retailers, its key specifications, and how it performs for each job.
Trade-offs: you want strong value with Balanced priorities specifically
- Rated output
- 550 W
- 80 PLUS rating
- 80 PLUS Bronze
- Size
- ATX
- Modularity
- Non-modular
- ATX standard
- ATX 2.4
Move a slider and the page re-scores this product against the same market frame.
What does it cost today, and is that a good price?
Market confidence: LowAt CAD 90 the MSI MAG A550BN is priced in line with its CAD 90 representative market level. Only one retailer currently backs that price, so the level is a single data point rather than a market.
Limited market: only one retailer currently has a verified offer, so treat this price as a single data point.
Prices & availability
MSI MAG A550BN: current price and offers
Compare the offers we track for this model, across variants and retailers.
1 tracked offers · 1 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| MSI MAG A550BN | Newegg | New | CAD 90 | 46 | 2026-10-16 | View offer → |
| MSI MAG A550BNMultiple variants available | Amazon Affiliate | Varies | Find on Amazon | Not tracked | No price snapshot | Find on Amazon → |
Prices are dated snapshots, not live quotes — confirm the final price at the store. New, refurbished and used offers are listed separately; used offers carry warranty and seller risk.
Performance and where it ranks
Two different questions, side by side. Performance compares what the hardware can do; Value compares what that capability costs at today’s price. A product can rank high on one and low on the other — that gap is the point.
Performance Balanced
How much it can do. Price plays no part in this ranking.
#70 of 71 graded Power supplies
- #65 CorsairCorsair CX650 43
- #66 MSIMSI MAG A650BN PCIE5 III 43
- #67 be quiet!be quiet! Pure Power 12 650W 43
- #68 ThermaltakeThermaltake Smart 600W 40
- #69 ThermaltakeThermaltake Toughpower GX2 600W 40
- #70 MSIMSI MAG A550BN 37
- #71 ThermaltakeThermaltake Smart 500W 33
Value Balanced
How much of that you get for today’s price.
#62 of 71 currently priced Power supplies
- #59 NZXTNZXT C1500 Platinum 57
- #60 MSIMSI MAG A650BN 52
- #61 ASRockASRock PRO-650G 50
- #62 MSIMSI MAG A550BN 46
- #63 CorsairCorsair RM750 White 46
- #64 ThermaltakeThermaltake Toughpower SFX Platinum 1000W 45
- #65 ThermaltakeThermaltake Toughpower GX2 600W 45
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#70 of 71 graded Power supplies
- #65 CorsairCorsair CX650 43
- #66 MSIMSI MAG A650BN PCIE5 III 43
- #67 be quiet!be quiet! Pure Power 12 650W 43
- #68 ThermaltakeThermaltake Smart 600W 40
- #69 ThermaltakeThermaltake Toughpower GX2 600W 40
- #70 MSIMSI MAG A550BN 37
- #71 ThermaltakeThermaltake Smart 500W 33
Value Gaming PC
How much of that you get for today’s price.
#64 of 71 currently priced Power supplies
- #61 ThermaltakeThermaltake Toughpower SFX Platinum 1000W 49
- #62 MSIMSI MAG A650BN 44
- #63 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 42
- #64 MSIMSI MAG A550BN 39
- #65 CorsairCorsair RM750 White 38
- #66 ThermaltakeThermaltake Toughpower GX2 600W 37
- #67 ThermaltakeThermaltake Smart 500W 34
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#70 of 71 graded Power supplies
- #65 CorsairCorsair CX650 43
- #66 MSIMSI MAG A650BN PCIE5 III 43
- #67 be quiet!be quiet! Pure Power 12 650W 43
- #68 ThermaltakeThermaltake Smart 600W 40
- #69 ThermaltakeThermaltake Toughpower GX2 600W 40
- #70 MSIMSI MAG A550BN 37
- #71 ThermaltakeThermaltake Smart 500W 33
Value High-end GPU
How much of that you get for today’s price.
#67 of 71 currently priced Power supplies
- #64 CorsairCorsair RM750 White 29
- #65 MSIMSI MAG A650BN 20
- #66 ThermaltakeThermaltake Toughpower GX2 600W 20
- #67 MSIMSI MAG A550BN 18
- #68 CorsairCorsair CX650 17
- #69 ThermaltakeThermaltake Smart 700W 16
- #70 ThermaltakeThermaltake Smart 500W 14
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#70 of 71 graded Power supplies
- #65 CorsairCorsair CX650 43
- #66 MSIMSI MAG A650BN PCIE5 III 43
- #67 be quiet!be quiet! Pure Power 12 650W 43
- #68 ThermaltakeThermaltake Smart 600W 40
- #69 ThermaltakeThermaltake Toughpower GX2 600W 40
- #70 MSIMSI MAG A550BN 37
- #71 ThermaltakeThermaltake Smart 500W 33
Value Small form factor
How much of that you get for today’s price.
#66 of 71 currently priced Power supplies
- #63 CorsairCorsair RM750 White 22
- #64 MSIMSI MAG A650BN 21
- #65 ThermaltakeThermaltake Toughpower GX2 600W 19
- #66 MSIMSI MAG A550BN 19
- #67 ThermaltakeThermaltake Smart BM3 Bronze 850W 17
- #68 CorsairCorsair CX650 17
- #69 ThermaltakeThermaltake Smart 700W 16
Performance Workstation
How much it can do. Price plays no part in this ranking.
#68 of 71 graded Power supplies
- #65 RosewillRosewill VSB650 33
- #66 CorsairCorsair CX650 33
- #67 MSIMSI MAG A650BN PCIE5 III 33
- #68 MSIMSI MAG A550BN 33
- #69 ThermaltakeThermaltake Smart 700W 17
- #70 ThermaltakeThermaltake Smart 600W 17
- #71 ThermaltakeThermaltake Smart 500W 17
Value Workstation
How much of that you get for today’s price.
#66 of 71 currently priced Power supplies
- #63 ASRockASRock PRO-850B 30
- #64 MSIMSI MAG A650BN 28
- #65 ASRockASRock PRO-650B 26
- #66 MSIMSI MAG A550BN 24
- #67 ThermaltakeThermaltake Smart BM3 Bronze 850W 23
- #68 CorsairCorsair CX650 23
- #69 ThermaltakeThermaltake Smart 700W 16
These ladders follow the preset scenario shown above. Your own weights re-score this product, not the whole field.
What it is good for
| Scenario | this productCapability grade · Value at current price | Higher capability | Higher Value with current priorities |
|---|---|---|---|
| Balanced (all-round)Weighted all-round view | GradeNo grade Value46 | Higher capability Higher capability · Higher Value with current priorities ASRock PRO-850B 62 +55% capability · +6% price | |
| Gaming PCScenario capability | GradeC Value39 | Higher capability Higher capability · Higher Value with current priorities ASRock PRO-850B S 67 +55% capability · +6% price | |
| High-end GPUScenario capability | GradeF Value18 | Higher capability Higher capability · Higher Value with current priorities ASRock PRO-850B B 47 +55% capability · +6% price | |
| Small form factorScenario capability | GradeF Value19 | Higher capability Higher capability · Higher Value with current priorities ASRock PRO-850B F 27 +55% capability · +6% price | |
| Workstation & 24/7Scenario capability | GradeC Value24 | Higher capability ASRock Challenger CL-650G B 49 +100% capability · +11% price | Higher Value with current priorities ASRock PRO-850B C 30 +0% capability · +6% price |
Balanced has no letter: it is a weighting preset, not a capability rubric. A grade answers “how well does this handle that job?” — price is never part of it. Relative Value puts the current market price back in.
Compare these grades with the full tier list
Trade-offs
Works well if
- Gaming PC is your main prioritygraded C for Gaming PC on the same rubric as the tier list
Consider other options if
- You want strong value with Balanced priorities specificallyat today's market no realistic price for this model reaches strong value with Balanced priorities — the calculation only gets there near CAD 36, against a cheapest tracked CAD 90
- High-end GPU is what you actually need it forit grades only F there
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Consider other options if
- Gaming PC is what you actually need it forit grades C there; ASRock PRO-850B grades S at CAD 95
- You want strong value for Gaming PC specificallyat today's market no realistic price for this model reaches strong value for Gaming PC — the calculation only gets there near CAD 24, against a cheapest tracked CAD 90
- You need more Rated output than 550 Wthis product is fixed at 550 W; ASRock PRO-850B offers 850 W inside the same budget
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Works well if
- High-end GPU is not actually your main job — Gaming PC isit grades F for High-end GPU, but C for Gaming PC
Consider other options if
- High-end GPU is what you actually need it forit grades F there; ASRock PRO-850B grades B at CAD 95
- You want strong value for High-end GPU specificallycompeting products deliver so much more for High-end GPU per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- You need more Rated output than 550 Wthis product is fixed at 550 W; ASRock PRO-850B offers 850 W inside the same budget
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Works well if
- Small form factor is not actually your main job — Gaming PC isit grades F for Small form factor, but C for Gaming PC
Consider other options if
- Small form factor is what you actually need it forit grades F there; ASRock PRO-850B grades F at CAD 95
- You want strong value for Small form factor specificallycompeting products deliver so much more for Small form factor per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- You are buying for Small form factor and want no asterisksthe rubric caps this grade: atx unit: it does not fit an sfx case
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Works well if
- Workstation is not actually your main job — Gaming PC isit grades C for Workstation, but C for Gaming PC
Consider other options if
- Workstation is what you actually need it forit grades C there; ASRock Challenger CL-650G grades B at CAD 100
- You want strong value for Workstation specificallycompeting products deliver so much more for Workstation per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- You need more Rated output than 550 Wthis product is fixed at 550 W; ASRock Challenger CL-650G offers 650 W inside the same budget
Every line states the fact it was derived from, for the scenario selected above. Thresholds are calculated points on our value curve — information about where the maths turns, not instructions about what to pay.
Similar options to the MSI MAG A550BN
Chosen for Balanced
Chosen for Gaming PC
Chosen for High-end GPU
Chosen for Small form factor
Chosen for Workstation
Alternatives stay near this product’s price range. Step-up options may exceed the standard budget envelope when the capability gain is meaningful.
More head-to-head comparisons in this category
Upgrade planner
Judge the change in the active scenario, then make the cash gap explicit.
Using page scenarioWhat are you upgrading from? These are the axes we compare on, and where this product stands in the current market.
Capability differences are expressed as tiers and index points, not as benchmark percentages we did not measure.
Specifications and compatibility
What this product is, and what to check before it goes into your build.
Power / Interface
- Rated output
- 550 W
- +12 V output
- 546 W
- 80 PLUS rating
- 80 PLUS Bronze
- ATX standard
- ATX 2.4
Show all specifications
Warranty
- Warranty
- 5 years
- Manufacturer part number
- MAG A550BN
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-10-16
What to check in your build
A case that takes ATX power supplies
The size is set by the case: ATX cases take ATX units, small cases take SFX (some also SFX-L).
140 mm of power-supply bay, plus room for the cables
Case makers list the longest power supply the bay takes; modular cables need extra space behind the unit.
Found an error? Report this specification Email the field, corrected value and an optional source.
Compatibility guidance is practical help, not a score. Missing data is shown as unknown, never invented.
Summary
MSI MAG A550BN offers a balanced view across an all-round mix of priorities. It ranks #70 by capability in the current modelled field. Its clearest measured strength is rated output 550. ASRock PRO-650B currently clears the same practical bar with stronger Relative Value.
MSI MAG A550BN offers C-grade capability for Gaming PC. It ranks #70 by capability in the current modelled field. Its clearest measured strength is rated output 550. The C grade is the decisive limitation for this workload.
MSI MAG A550BN offers F-grade capability for High-end GPU. It ranks #70 by capability in the current modelled field. Its clearest measured strength is rated output 550. The F grade is the decisive limitation for this workload.
MSI MAG A550BN offers F-grade capability for Small form factor. It ranks #70 by capability in the current modelled field. Its clearest measured strength is rated output 550. The F grade is the decisive limitation for this workload.
MSI MAG A550BN offers C-grade capability for Workstation. It ranks #68 by capability in the current modelled field. Its clearest measured strength is rated output 550. The C grade is the decisive limitation for this workload.
FAQ
Why does Relative Value change when I choose another scenario?
Each scenario changes the weights applied to capability, price and the other published factors. The hardware facts stay fixed, but the value question changes, so its score and rank can change too.
Why can Amazon appear without a tracked price?
Amazon is shown as a discovery link when we do not have a permitted verified price snapshot. It is excluded from price comparisons, rankings and Relative Value until a compliant tracked price exists.
Useful links & sources
offer frame 2026-10-16 · formula psu-value-v1 · facts facts-2026-10-17 · Relative Value is an estimate from our current dataset, the selected weights and dated market prices — not an official product rating and not a price forecast. Target prices are calculation thresholds, not predictions. Methodology We are not a shop. Affiliate links may earn us a commission; they never change the calculations or the ranking.