Retailer photo of ASUS PRIME B550M-K ARGB (Micro ATX). View this offer in Where to buy
ASUS · MOBO · AM4
ASUS PRIME B550M-K ARGB
Trade-offs: you want strong value with Balanced priorities specifically
- Socket
- AM4
- Chipset
- AMD B550
- Form factor
- Micro ATX
- Memory
- DDR4 · 4 slots
- M.2 slots
- 2
Move a slider and the page re-scores this product against the same market frame.
Is this a good buy today?
Market confidence: LowAt $117 the ASUS PRIME B550M-K ARGB is priced in line with its $117 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
Where to buy the ASUS PRIME B550M-K ARGB
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 ARGB (Micro ATX) | Newegg | New | $117 | 37 | 2026-09-28 | View offer → |
| ASUS PRIME B550M-K ARGBMultiple 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.
Where it stands in the field
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.
#443 of 813 graded motherboards
- #440 ASUSASUS PRIME B550M-A AC 62
- #441 ASUSASUS PRIME B550M-A WIFI II 62
- #442 ASUSASUS PRIME B550M-K 62
- #443 ASUSASUS PRIME B550M-K ARGB 62
- #444 ASUSASUS ROG STRIX B550-E GAMING 62
- #445 ASUSASUS ROG STRIX B550-F GAMING 62
- #446 ASUSASUS ROG STRIX B550-I GAMING 62
Value Balanced
How much of that you get for today’s price.
#293 of 862 currently priced motherboards
- #290 GigabyteGigabyte B650M DS3H 37
- #291 GigabyteGigabyte B450M DS3H 37
- #292 GigabyteGigabyte X870E AORUS MASTER X3D 37
- #293 ASUSASUS PRIME B550M-K ARGB 37
- #294 GigabyteGigabyte X570 UD 37
- #295 ASUSASUS TUF GAMING Z790-PRO WIFI 37
- #296 ASUSASUS ROG STRIX X670E-E GAMING WIFI 37
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#438 of 801 graded motherboards
- #435 ASRockASRock B550M-HVS SE90-MXBMK0-A0UAYZ 75
- #436 ASRockASRock B550M-ITX 75
- #437 ASUSASUS PRIME B550M-K 75
- #438 ASUSASUS PRIME B550M-K ARGB 75
- #439 GigabyteGigabyte B550 GAMING X 75
- #440 GigabyteGigabyte B550 VISION D 75
- #441 GigabyteGigabyte B550M AORUS PRO 75
Value Gaming Build
How much of that you get for today’s price.
#444 of 862 currently priced motherboards
- #441 ASUSASUS ROG MAXIMUS Z790 APEX 26
- #442 ASUSASUS ROG MAXIMUS Z790 DARK HERO 26
- #443 GigabyteGigabyte Z390 AORUS PRO 26
- #444 ASUSASUS PRIME B550M-K ARGB 26
- #445 MSIMSI MPG Z390M GAMING EDGE AC 26
- #446 GigabyteGigabyte Z370 AORUS Gaming 3 26
- #447 ASUSASUS STRIX Z270H 26
Performance Workstation
How much it can do. Price plays no part in this ranking.
#545 of 794 graded motherboards
- #542 MSIMSI B450M PRO-VDH PLUS 44
- #543 ASRockASRock B550 Phantom Gaming 4 44
- #544 ASUSASUS PRIME B550M-K 44
- #545 ASUSASUS PRIME B550M-K ARGB 44
- #546 ASUSASUS TUF X470-Plus Gaming 44
- #547 ASUSASUS Pro B760M-C-CSM 44
- #548 GigabyteGigabyte B760M D3HP WIFI6 44
Value Workstation
How much of that you get for today’s price.
#563 of 862 currently priced motherboards
- #560 ASUSASUS B760M-AYW WIFI 10
- #561 MSIMSI B650M BOMBER WIFI 10
- #562 ASRockASRock B450 STEEL LEGEND 10
- #563 ASUSASUS PRIME B550M-K ARGB 10
- #564 GigabyteGigabyte Z370 HD3 10
- #565 ASRockASRock B450M PRO4 R2.0 10
- #566 MSIMSI Z370M MORTAR 10
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#185 of 813 graded motherboards
- #182 ASRockASRock B550M-HDV 69
- #183 ASRockASRock B550M-HVS SE90-MXBMK0-A0UAYZ 69
- #184 ASUSASUS PRIME B550M-K 69
- #185 ASUSASUS PRIME B550M-K ARGB 69
- #186 ASUSASUS TUF GAMING B550M-E WIFI 69
- #187 GigabyteGigabyte B550M AORUS PRO 69
- #188 GigabyteGigabyte B550M DS3H 69
Value Small-Case Fit
How much of that you get for today’s price.
#153 of 862 currently priced motherboards
- #150 GigabyteGigabyte B850 GAMING X WIFI6E 38
- #151 GigabyteGigabyte X870 EAGLE WIFI7 38
- #152 GigabyteGigabyte Z890 AERO G 38
- #153 ASUSASUS PRIME B550M-K ARGB 38
- #154 GigabyteGigabyte GA-AX370M-DS3H 38
- #155 MSIMSI PRO B760M-P 38
- #156 MSIMSI MPG Z790 EDGE WIFI 38
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 Value37 | Higher capability ASRock 90-MXBMS0-A0UAYZ 52 +25% capability · -6% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF 85 +25% capability · +6% price |
| Gaming BuildScenario capability | GradeB Value26 | Higher capability MSI PRO B650M-B A 30 +20% capability · +8% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF B 74 +12% capability · +6% price |
| WorkstationScenario capability | GradeD Value10 | Higher capability ASRock B650 Pro RS WiFi B 59 +93% capability · +20% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF C 49 +48% capability · +6% price |
| Small-Case FitScenario capability | GradeC Value38 | Higher capability ASRock A620AI WiFi S 75 +37% capability · +12% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF C 99 +9% 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.
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 $38, against a cheapest tracked $117
- Workstation is what you actually need it forit 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 specificallycompeting products deliver so much more for Gaming Build per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- Workstation is what you actually need it forit grades only D there
- You are buying for Gaming Build and want no asterisksthe rubric caps this grade: previous-generation socket — limited cpu upgrade path
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
- Workstation is what you actually need it forit grades D there; ASRock B650 Pro RS WiFi grades B at $140
- You are buying for Workstation and want no asterisksthe rubric caps this grade: expansion data not collected for this board — graded on platform only
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
- Small-Case Fit is what you actually need it forit grades C there; ASRock A620AI WiFi grades S at $131
- You want strong value for Small-Case Fit specificallycompeting products deliver so much more for Small-Case Fit per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- You are buying for Small-Case Fit and want no asterisksthe rubric caps this grade: micro atx — fits compact mid-size cases
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 ARGB
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.
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 & compatibility
What this product is, and what to check before it goes into your build.
Memory
- Type
- DDR4
- Slots
- 4
- Maximum
- 128 GB
- ECC support
- No
Power / Interface
- Socket
- AM4
- Chipset
- AMD B550
- Form factor
- Micro ATX
Physical / Outputs
- M.2 slots
- 2
- SATA ports
- 4
- PCIe ×16 slots
- 1
- USB ports
- 4
- Ethernet
- 1 Gb/s
Show all specifications
Features
- RAID
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- PRIMEB550MKARGB
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-09-28
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 ARGB offers a balanced view across an all-round mix of priorities. It ranks #443 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 ARGB offers B-grade capability for Gaming Build. It ranks #438 by capability in the current modelled field. Its clearest measured strength is feature score 41. ASUS PRIME B450M-A CSM currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B550M-K ARGB offers D-grade capability for Workstation. It ranks #545 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 ARGB offers C-grade capability for Small-Case Fit. It ranks #185 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 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 2026-09-28 · formula mobo-value-v1.4 · facts facts-2026-09-28 · 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.