ASUS PRIME B550M-A
The current ASUS PRIME B550M-A price from retailers, its key specifications, and how it performs for each job.
ASUS · MOBO · AM4
Retailer photo of ASUS PRIME B550M-A (Micro ATX). View this offer in Where to buy
Trade-offs: Current price sits $32 above the strong-value threshold (~$80)
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: MediumAt $112 the ASUS PRIME B550M-A is priced 12% below its $127 representative market level. Only 2 verified new offers stand behind it, so the level can move quickly.
Consider: Gigabyte B650M GAMING PLUS WF offers stronger value around $100.Compare
Prices & availability
ASUS PRIME B550M-A: current price and offers
Compare the offers we track for this model, across variants and retailers.
2 tracked offers · 2 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| ASUS PRIME B550M-A (Micro ATX) | Newegg | New | $112 | 57 | 2026-11-08 | View offer → |
| ASUS PRIME B550M-A (Micro ATX) | MemoryC | New | $141 | 45 | 2026-11-09 | View offer → |
| ASUS PRIME B550M-AMultiple 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.
#524 of 967 graded motherboards
- #521 ASRockASRock B550M-ITX 62
- #522 ASUSASUS 90MB14G0-M0EAY0 62
- #523 ASUSASUS PRIME B550-PLUS AC-HES 62
- #524 ASUSASUS PRIME B550M-A 62
- #525 ASUSASUS PRIME B550M-A AC 62
- #526 ASUSASUS PRIME B550M-A WIFI II 62
- #527 ASUSASUS PRIME B550M-K 62
Value Balanced
How much of that you get for today’s price.
#81 of 1015 currently priced motherboards
- #78 ASUSASUS PRIME B860M-A WIFI-CSM 58
- #79 ASUSASUS PRIME Z270-A 58
- #80 GigabyteGigabyte Z590 UD 57
- #81 ASUSASUS PRIME B550M-A 57
- #82 ASUSASUS TUF GAMING B550M-PLUS WIFI II 57
- #83 GigabyteGigabyte B650M AORUS ELITE AX ICE 57
- #84 ASRockASRock A620AI WiFi 57
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#638 of 949 graded motherboards
- #635 ASUSASUS TUF GAMING A620-PRO WIFI 72
- #636 ASUSASUS PRIME B450M-A CSM 72
- #637 MSIMSI B450 TOMAHAWK 72
- #638 ASUSASUS PRIME B550M-A 72
- #639 ASUSASUS PRIME B550M-A AC 72
- #640 ASUSASUS PRIME B550M-A WIFI II 72
- #641 ASRockASRock H810M-X 72
Value Gaming Build
How much of that you get for today’s price.
#60 of 1015 currently priced motherboards
- #57 ASUSASUS B760M-AYW WIFI D4 II 60
- #58 MSIMSI PRO Z790-P WIFI 59
- #59 ASUSASUS PRIME B550M-K ARGB 59
- #60 ASUSASUS PRIME B550M-A 59
- #61 ASUSASUS PRIME B550-PLUS AC-HES 59
- #62 GigabyteGigabyte Z790M AORUS ELITE AX ICE 59
- #63 GigabyteGigabyte B850 GAMING WIFI6 59
Performance Workstation
How much it can do. Price plays no part in this ranking.
#705 of 949 graded motherboards
- #702 ASUSASUS ROG STRIX B460-H GAMING 43
- #703 ASUSASUS TUF GAMING B460M-PLUS 43
- #704 GigabyteGigabyte B660M DS3H DDR4 43
- #705 ASUSASUS PRIME B550M-A 42
- #706 ASUSASUS PRIME B550M-A AC 42
- #707 ASUSASUS PRIME B550M-A WIFI II 42
- #708 GigabyteGigabyte B550M AORUS ELITE AX 42
Value Workstation
How much of that you get for today’s price.
#252 of 1015 currently priced motherboards
- #249 ASUSASUS TUF GAMING B760M-PLUS WIFI II 59
- #250 MSIMSI B450 GAMING PRO CARBON AC 59
- #251 ASRockASROCK X870 Challenger WIFI 59
- #252 ASUSASUS PRIME B550M-A 59
- #253 GigabyteGigabyte Z490 AORUS PRO AX 59
- #254 ASUSASUS PRIME A620-PLUS WIFI6 59
- #255 ASUSASUS Prime Z370-A 59
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#193 of 967 graded motherboards
- #190 MSIMSI MPG B760M EDGE TI WIFI 71
- #191 ASRockASRock H810M-X 71
- #192 MSIMSI PRO H810M-B 71
- #193 ASUSASUS PRIME B550M-A 70
- #194 ASUSASUS PRIME B550M-A AC 70
- #195 ASUSASUS PRIME B550M-A WIFI II 70
- #196 MSIMSI B550M PRO-VDH 70
Value Small-Case Fit
How much of that you get for today’s price.
#56 of 1015 currently priced motherboards
- #53 ASUSASUS PRIME B550M-K ARGB 64
- #54 GigabyteGigabyte B860M EAGLE PLUS WIFI6E 64
- #55 ASRockASRock B650M Pro X3D WiFi 63
- #56 ASUSASUS PRIME B550M-A 63
- #57 ASUSASUS PRIME B450M-K II 63
- #58 ASUSASUS PRIME B550M-K 63
- #59 MSIMSI PRO B760M-P 63
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 Value57 | Higher capability ASRock 90-MXBMS0-A0UAYZ 82 +25% capability | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF 100 +25% capability · -10% price |
| Gaming BuildScenario capability | GradeC Value59 | Higher capability ASUS ROG STRIX B650-A GAMING WIFI A 80 +26% capability · +17% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF B 100 +17% capability · -10% price |
| WorkstationScenario capability | GradeD Value59 | Higher capability MSI PRO B850-VC WIFI B 80 +110% capability · +17% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF C 100 +55% capability · -10% price |
| Small-Case FitScenario capability | GradeC Value63 | Higher capability ASRock A620AI WiFi S 86 +35% capability · +8% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 100 +0% 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 C for Gaming Build on the same rubric as the tier list
- Strong-value threshold: ~$80$80 is where Relative Value reaches 80 with Balanced priorities, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Current price sits $32 above the strong-value threshold (~$80)cheapest tracked $112 against a $80 calculated threshold with Balanced priorities
- Value for money matters more to you than this exact modelGigabyte B650M GAMING PLUS WF holds Relative Value 100 against its 57 with Balanced priorities, at $100
- 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
- Strong-value threshold: ~$82$82 is where Relative Value reaches 80 for Gaming Build, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Gaming Build is your main useit grades C there; ASUS ROG STRIX B650-A GAMING WIFI grades A at $130
- Current price sits $30 above the strong-value threshold (~$82)cheapest tracked $112 against a $82 calculated threshold for Gaming Build
- Value for money matters more to you than this exact modelGigabyte B650M GAMING PLUS WF holds Relative Value 100 against its 59 for Gaming Build, at $100
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 C for Gaming Build
Consider other options if
- Not the pick if Workstation is your main useit grades D there; MSI PRO B850-VC WIFI grades B at $130
- You want strong value for Workstation specificallyat today's market no realistic price for this model reaches strong value for Workstation — the calculation only gets there near $61, against a cheapest tracked $112
- Value for money matters more to you than this exact modelGigabyte B650M GAMING PLUS WF holds Relative Value 100 against its 59 for Workstation, at $100
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 C for Gaming Build
- Strong-value threshold: ~$88$88 is where Relative Value reaches 80 for Small-Case Fit, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Small-Case Fit is your main useit grades C there; ASRock A620AI WiFi grades S at $120
- Current price sits $24 above the strong-value threshold (~$88)cheapest tracked $112 against a $88 calculated threshold for Small-Case Fit
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 100 against its 63 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-A
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
- Fan headers
- 4
- RAID
- Yes
- ARGB headers
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- 90MB14I0-M0EAY0
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-11-02–2026-11-09
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-A offers a balanced view across an all-round mix of priorities. It ranks #524 by capability in the current modelled field. Its clearest measured strength is feature score 58. Gigabyte B650M GAMING PLUS WF currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B550M-A offers C-grade capability for Gaming Build. It ranks #638 by capability in the current modelled field. Its clearest measured strength is feature score 58. The C grade is the decisive limitation for this workload.
ASUS PRIME B550M-A offers D-grade capability for Workstation. It ranks #705 by capability in the current modelled field. Its clearest measured strength is feature score 58. The D grade is the decisive limitation for this workload.
ASUS PRIME B550M-A offers C-grade capability for Small-Case Fit. It ranks #193 by capability in the current modelled field. Its clearest measured strength is feature score 58. 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 2026-11-02–2026-11-09 · 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.