ASUS PRIME B550M-K
The current ASUS PRIME B550M-K price from retailers, its key specifications, and how it performs for each job.
ASUS · MOBO · AM4
Retailer photo of ASUS PRIME B550M-K (Micro ATX). View this offer in Where to buy
Trade-offs: you want strong value with Balanced priorities specifically
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 374 the ASUS PRIME B550M-K is priced in line with its CAD 374 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
ASUS PRIME B550M-K: 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 |
|---|---|---|---|---|---|---|
| ASUS PRIME B550M-K (Micro ATX) | Newegg | New | CAD 374 | 22 | 2026-11-08 | View offer → |
| ASUS PRIME B550M-KMultiple 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.
#412 of 698 graded motherboards
- #409 ASUSASUS PRIME B550M-A 62
- #410 ASUSASUS PRIME B550M-A AC 62
- #411 ASUSASUS PRIME B550M-A WIFI II 62
- #412 ASUSASUS PRIME B550M-K 62
- #413 ASUSASUS PRIME B550M-K ARGB 62
- #414 ASUSASUS Pro B550M-C 62
- #415 ASUSASUS ROG STRIX B550-E GAMING 62
Value Balanced
How much of that you get for today’s price.
#482 of 722 currently priced motherboards
- #479 MSIMSI MPG Z790 CARBON WIFI II 22
- #480 GigabyteGigabyte B650I AX 22
- #481 MSIMSI PRO B850M-G 22
- #482 ASUSASUS PRIME B550M-K 22
- #483 MSIMSI Z270 GAMING M7 22
- #484 MSIMSI MEG X570 ACE 22
- #485 MSIMSI PRO B860-P 22
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#403 of 680 graded motherboards
- #400 MSIMSI B450M PRO-VDH MAX 75
- #401 MSIMSI B450M-A PRO MAX 75
- #402 ASRockASRock B550M-ITX 75
- #403 ASUSASUS PRIME B550M-K 75
- #404 ASUSASUS PRIME B550M-K ARGB 75
- #405 ASUSASUS Pro B550M-C 75
- #406 ASUSASUS TUF GAMING B550M-E WIFI 75
Value Gaming Build
How much of that you get for today’s price.
#441 of 722 currently priced motherboards
- #438 ASUSASUS ROG STRIX Z490-A GAMING 24
- #439 ASUSASUS Prime B760M-K 24
- #440 MSIMSI MAG Z690 TORPEDO 24
- #441 ASUSASUS PRIME B550M-K 24
- #442 MSIMSI MPG Z690 CARBON WIFI 24
- #443 GigabyteGigabyte B760M AORUS ELITE AX 24
- #444 MSIMSI PRO B850M-G 23
Performance Workstation
How much it can do. Price plays no part in this ranking.
#505 of 687 graded motherboards
- #502 GigabyteGigabyte B450 Gaming X 45
- #503 MSIMSI MAG B550M BAZOOKA 45
- #504 ASRockASRock B550 Phantom Gaming 4 44
- #505 ASUSASUS PRIME B550M-K 44
- #506 ASUSASUS PRIME B550M-K ARGB 44
- #507 ASUSASUS TUF X470-Plus Gaming 44
- #508 ASUSASUS Pro B760M-C-CSM 44
Value Workstation
How much of that you get for today’s price.
#532 of 722 currently priced motherboards
- #529 ASUSASUS TUF GAMING B760M-PLUS WIFI 40
- #530 ASUSASUS PRIME X370-PRO 40
- #531 ASUSASUS Pro WS X570-ACE 39
- #532 ASUSASUS PRIME B550M-K 39
- #533 ASUSASUS prime-b650m-f-csm 39
- #534 ASUSASUS A620M-AYW WIFI 39
- #535 MSIMSI MAG B560 TORPEDO 39
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#164 of 698 graded motherboards
- #161 MSIMSI B450M PRO-VDH MAX 70
- #162 MSIMSI B450M-A PRO MAX 70
- #163 ASRockASRock B550M-HDV 70
- #164 ASUSASUS PRIME B550M-K 70
- #165 ASUSASUS PRIME B550M-K ARGB 70
- #166 ASUSASUS Pro B550M-C 70
- #167 ASUSASUS TUF GAMING B550M-E WIFI 70
Value Small-Case Fit
How much of that you get for today’s price.
#454 of 722 currently priced motherboards
- #451 ASUSASUS B760M-AYW WIFI D4 24
- #452 MSIMSI PRO B760M-A WIFI DDR4 24
- #453 GigabyteGigabyte X670 GAMING X AX V2 24
- #454 ASUSASUS PRIME B550M-K 24
- #455 ASUSASUS 90MB1BY0-M0EAY0 24
- #456 ASUSASUS PRIME B760M-R D4 24
- #457 MSIMSI MAG B460M MORTAR 24
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 Value22 | Higher capability MSI PRO X870E-S EVO WIFI 25 +61% capability · -17% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI 100 +0% capability |
| Gaming BuildScenario capability | GradeB Value24 | Higher capability MSI PRO B650-P WIFI S 50 +33% capability · -13% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 100 -1% capability |
| WorkstationScenario capability | GradeD Value39 | Higher capability Gigabyte X870 AORUS ELITE WIFI7 A 86 +117% capability · -6% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI D 100 -2% capability |
| Small-Case FitScenario capability | GradeC Value24 | Higher capability Gigabyte B550I AORUS PRO AX S 45 +43% capability · -29% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 100 +1% capability |
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
Browse shortlists for different uses
Trade-offs
Works well if
- Gaming Build is your main prioritygraded B for Gaming Build 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 102, against a cheapest tracked CAD 374
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 100 against its 22 with Balanced priorities. Check on Amazon.
- Not the pick if Workstation is your main useit grades only D there
Works well if
- Gaming Build is your main prioritygraded B for Gaming Build on the same rubric as the tier list
Consider other options if
- You want strong value for Gaming Build specificallyat today's market no realistic price for this model reaches strong value for Gaming Build — the calculation only gets there near CAD 110, against a cheapest tracked CAD 374
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 100 against its 24 for Gaming Build. Check on Amazon.
- Not the pick if Workstation is your main useit grades only D there
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 Build isit grades D for Workstation, but B for Gaming Build
Consider other options if
- Not the pick if Workstation is your main useit grades D there; Gigabyte X870 AORUS ELITE WIFI7 grades A at CAD 350
- 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
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 100 against its 39 for Workstation. Check on Amazon.
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-Case Fit is not actually your main job — Gaming Build isit grades C for Small-Case Fit, but B for Gaming Build
Consider other options if
- Not the pick if Small-Case Fit is your main useit grades C there; Gigabyte B550I AORUS PRO AX grades S at CAD 265
- You want strong value for Small-Case Fit specificallyat today's market no realistic price for this model reaches strong value for Small-Case Fit — the calculation only gets there near CAD 112, against a cheapest tracked CAD 374
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 100 against its 24 for Small-Case Fit. Check on Amazon.
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 ASUS PRIME B550M-K
Chosen for Balanced
Chosen for Gaming Build
Chosen for Workstation
Chosen for Small-Case Fit
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.
Memory
Power / Interface
Physical / Outputs
- M.2 slots
- 2
- SATA ports
- 4
- PCIe ×16 slots
- 1
- USB ports
- 3
- Ethernet
- 1 Gb/s
Show all specifications
Features
- RAID
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- PRIME B550M-K
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-11-08–2026-11-09
What to check in your build
AM4
Takes AM4 processors — a matching socket is necessary but not sufficient, check the vendor's CPU support list
Micro ATX
Micro ATX — the case must accept this size
DDR4 · 4 slots · up to 128 GB
Takes DDR4 memory only — another DDR generation does not fit the slots
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
ASUS PRIME B550M-K offers a balanced view across an all-round mix of priorities. It ranks #412 by capability in the current modelled field. Its clearest measured strength is feature score 41. MSI B550M PRO-VDH WIFI currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B550M-K offers B-grade capability for Gaming Build. It ranks #403 by capability in the current modelled field. Its clearest measured strength is feature score 41. MSI MPG B550 GAMING PLUS currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B550M-K offers D-grade capability for Workstation. It ranks #505 by capability in the current modelled field. Its clearest measured strength is feature score 41. The D grade is the decisive limitation for this workload.
ASUS PRIME B550M-K offers C-grade capability for Small-Case Fit. It ranks #164 by capability in the current modelled field. Its clearest measured strength is feature score 41. 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 listing snapshots can participate in Value while fresh. We show Check on Amazon instead of its price; confirm the current price and availability at the store. When no current listing snapshot exists, Amazon is a search link only.
Useful links & sources
offer frame 2026-11-08–2026-11-09 · formula mobo-value-v6.1 · facts facts-2026-11-09 · 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.