ASUS PRIME B450M-K II
The current ASUS PRIME B450M-K II price from retailers, its key specifications, and how it performs for each job.
ASUS · MOBO · AM4
Retailer photo of ASUS PRIME B450M-K II (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 $96 the ASUS PRIME B450M-K II is priced in line with its $96 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 B450M-K II: 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 B450M-K II (Micro ATX) | Newegg | New | $96 | 51 | 2026-11-08 | View offer → |
| ASUS PRIME B450M-K IIMultiple 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.
#500 of 967 graded motherboards
- #497 ASUSASUS B450-PLUS GAMING 62
- #498 ASUSASUS B450M-PRO GAMING 62
- #499 ASUSASUS PRIME B450M-A CSM 62
- #500 ASUSASUS PRIME B450M-K II 62
- #501 ASUSASUS STRIX B450-F GAMING 62
- #502 ASUSASUS TUF GAMING B450M-PRO II 62
- #503 ASUSASUS TUF GAMING B450M-PRO S 62
Value Balanced
How much of that you get for today’s price.
#162 of 1015 currently priced motherboards
- #159 MSIMSI PRO Z790-A WIFI II 51
- #160 MSIMSI MAG B850 GAMING PLUS MAX WIFI 51
- #161 ASUSASUS X870 AYW GAMING WIFI W 51
- #162 ASUSASUS PRIME B450M-K II 51
- #163 GigabyteGigabyte Z890M AORUS ELITE WIFI7 ICE 51
- #164 GigabyteGigabyte Z490 AORUS ELITE AC 51
- #165 MSIMSI Z370 TOMAHAWK 51
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#511 of 949 graded motherboards
- #508 ASRockASRock B450M Steel Legend 75
- #509 ASUSASUS B450-PLUS GAMING 75
- #510 ASUSASUS B450M-PRO GAMING 75
- #511 ASUSASUS PRIME B450M-K II 75
- #512 ASUSASUS STRIX B450-F GAMING 75
- #513 ASUSASUS TUF GAMING B450M-PRO II 75
- #514 GigabyteGigabyte B450 Gaming X 75
Value Gaming Build
How much of that you get for today’s price.
#108 of 1015 currently priced motherboards
- #105 ASUSASUS ROG STRIX Z490-A GAMING 55
- #106 GigabyteGigabyte B850M EAGLE WIFI6E ICE 55
- #107 ASRockASRock AB350M-HDV 54
- #108 ASUSASUS PRIME B450M-K II 54
- #109 GigabyteGigabyte B550M DS3H 54
- #110 MSIMSI MAG Z390M MORTAR 54
- #111 ASUSASUS PRIME B860M-A WIFI-CSM 54
Performance Workstation
How much it can do. Price plays no part in this ranking.
#862 of 949 graded motherboards
- #859 ASRockASRock AB350M-HDV 17
- #860 ASRockASRock B450M-HDV 17
- #861 ASUSASUS 90MB0Z50-M0EAY0 17
- #862 ASUSASUS PRIME B450M-K II 17
- #863 MSIMSI B450M-A PRO MAX 17
- #864 ASRockASRock B550M-HDV 17
- #865 ASRockASRock B550M-ITX 17
Value Workstation
How much of that you get for today’s price.
#564 of 1015 currently priced motherboards
- #561 ASUSASUS PRIME H810M-E-CSM 46
- #562 GigabyteGigabyte X570 AORUS PRO WIFI 46
- #563 MSIMSI 7D50-001R 46
- #564 ASUSASUS PRIME B450M-K II 46
- #565 GigabyteGigabyte B660 GAMING X DDR4 46
- #566 MSIMSI B840M GAMING WIFI6E 46
- #567 GigabyteGigabyte Z590 UD AC 46
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#208 of 967 graded motherboards
- #205 ASUSASUS PRIME Z790M-PLUS 70
- #206 ASRockASRock B450M Steel Legend 69
- #207 ASUSASUS B450M-PRO GAMING 69
- #208 ASUSASUS PRIME B450M-K II 69
- #209 ASUSASUS TUF GAMING B450M-PRO II 69
- #210 GigabyteGigabyte B450M DS3H 69
- #211 GigabyteGigabyte B450M DS3H V2 69
Value Small-Case Fit
How much of that you get for today’s price.
#57 of 1015 currently priced motherboards
- #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
- #60 MSIMSI B450M PRO-VDH MAX 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 Value51 | Higher capability ASRock 90-MXBMS0-A0UAYZ 82 +25% capability | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF 100 +25% capability · +4% price |
| Gaming BuildScenario capability | GradeB Value54 | Higher capability ASRock B650 PG LIGHTNING A 89 +17% capability · +4% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF B 100 +12% capability · +4% price |
| WorkstationScenario capability | GradeD Value46 | Higher capability ASRock B650 PG LIGHTNING B 87 +369% capability · +4% price | Higher Value with current priorities Gigabyte B650M GAMING PLUS WF C 100 +288% capability · +4% price |
| Small-Case FitScenario capability | GradeC Value63 | Higher capability ASUS PRIME H610I-PLUS D4-CSM A 56 +27% capability · +18% 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 $61, against a cheapest tracked $96
- 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
- Strong-value threshold: ~$65$65 is where Relative Value reaches 80 for Gaming Build, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Current price sits $31 above the strong-value threshold (~$65)cheapest tracked $96 against a $65 calculated threshold for Gaming Build
- Not the pick if Workstation is your main useit 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
- Not the pick if Workstation is your main useit grades D there; ASRock B650 PG LIGHTNING grades B at $100
- 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 $31, against a cheapest tracked $96
- 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
- Strong-value threshold: ~$76$76 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; ASUS PRIME H610I-PLUS D4-CSM grades A at $113
- Current price sits $20 above the strong-value threshold (~$76)cheapest tracked $96 against a $76 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 B450M-K II
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.
Show all specifications
Features
- RAID
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- PRIME B450M-K II
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 · 2 slots · up to 64 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 B450M-K II offers a balanced view across an all-round mix of priorities. It ranks #500 by capability in the current modelled field. Its clearest measured strength is feature score 33. Gigabyte B550M K currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B450M-K II offers B-grade capability for Gaming Build. It ranks #511 by capability in the current modelled field. Its clearest measured strength is feature score 33. The main limitation appears when Workstation becomes the priority, where it grades D.
ASUS PRIME B450M-K II offers D-grade capability for Workstation. It ranks #862 by capability in the current modelled field. Its clearest measured strength is feature score 33. The D grade is the decisive limitation for this workload.
ASUS PRIME B450M-K II offers C-grade capability for Small-Case Fit. It ranks #208 by capability in the current modelled field. Its clearest measured strength is feature score 33. 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.