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ASUS Prime B450M-A II AMD AM4 (Ryzen 5000, 3rd/2nd/1st Gen Ryzen Micro ATX Motherboard (128GB DDR4, 4400 O.C.), NVMe, HDMI 2.0b/DVI/D-Sub, USB 3.2 2, BIOS Flashback, and Aura Sync)

Original price was: $89.99.Current price is: $79.99.

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Price: $89.99 - $79.99
(as of Dec 22, 2024 20:29:52 UTC – Details)


Powered by Ryzen 5000, 3rd Gen AMD® Ryzen™ processors, the ASUS Prime B450M-A II provides the solid foundation needed for your first build, plus flexibility to grow with your ambitions with a robust power design, automated system tuning, comprehensive cooling controls, and immersive onboard audio.
AMD AM4 Socket : Compatible to Ryzen 5000, 3rd/2nd/1st Gen AMD Ryzen CPUs.Operating System : Windows 10 64-bit. Windows 7 64-bit
Designed for Productivity: USB 3.2 Gen 2 with 10Gbps ultra-fast transfer speed, onboard M.2 support, 4xDIMMs support up to 128GB DDR4 with 4400 (O.C.) performance, HDMI 2.0b/DVI/D-Sub
Optimized Cooling: VRM and PCH heatsink with extensive surface, thermal pads help transfer heat from the inductor and phase array to the heatsink. Flexible fan controls for ultimate cooling and quietness with ASUS exclusive Fan Xpert 2 plus
Built to Last: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O, 1000 plus compatible devices, 8000 plus Validation Hours
PC DIY Friendly: With BIOS Flashback and ASUS exclusive UEFI BIOS
Outstanding Gaming Audio: Dedicated audio PCB layers, premium Japanese audio capacitors, and audio shielding ensures precision analog/digital separation and greatly reduced multi-lateral interference.
Aura Sync RGB and Armoury Crate Utility: with ASUS Armoury Crate synchronizing LED effects across a wide range of compatible PC gear, plus RGB LED and RGB header for greater customization
Please ensure your BIOS is up to date if installing a compatible Ryzen 5000 series CPU. Visit ASUS site search by motherboard model name, click on “Support” tab, Drivers and Tools, then BIOS and Firmware to download the latest BIOS.

Customers say

Customers find the motherboard to be a solid choice that gets the job done without a lot of issues. They say it runs great and has no issues with WiFi. Many consider it good value for money, especially for a budget build. The setup is easy with detailed instructions and the boot menu and BIOS are easy to navigate. The board looks good and is nice.

AI-generated from the text of customer reviews

13 reviews for ASUS Prime B450M-A II AMD AM4 (Ryzen 5000, 3rd/2nd/1st Gen Ryzen Micro ATX Motherboard (128GB DDR4, 4400 O.C.), NVMe, HDMI 2.0b/DVI/D-Sub, USB 3.2 2, BIOS Flashback, and Aura Sync)

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  1. Cliff

    works with AMD Ryzen 5 5500 6-Core perfectly
    I am a builder who’s is building this as a gift so it has to be perfect he lives 1k miles away. I put the AMD Ryzen 5 5500 6-Core its more than enough for him and this board if upgradable down the road.using a sabrent nvm.2 4.0 so boot time is fast. in windows 11 I have no errors at all, all install went perfectly.for a simple build that is stable for non overclocking buy it that said you can play most basic games no problem. also I did flash the bios to the newest BIOS 3611. (Good Luck)

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  2. TheCheese

    Great value and super stable!
    Everything was straightforward with this motherboard, easy to navigate BIOS, and very stable with my Ryzen 5 2600. I’ve got a mild overclock and it holds it’s own against some of the newer gear that I have! Definitely a great base for a beginner looking to dip their toes into PC building and gaming!

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  3. SueAsNew

    Very nice motherboard
    Built an AMD 5 5600G with NVME drive, and 16 gigs of memory. Used the old case, did not have to update the BIOS, and everything worked well. We used an old existing case. The build is very fast and replaeed a old I-5 processor from 2015.

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  4. GNINSC

    Good value motherboard
    Overall this motherboard works pretty well and I have no serious complaints. You do lose 2 of the SATA ports if you choose to use the M2 slot, which I don’t like, but I’ve seen several other boards that have this limitation so I’m sure its some type of chipset limitation.It would have been nice if they could have shifted the x16 slot over one slot so that a 2 slot graphics card doesn’t cover one of the PCI-E x1 slots, but I just used a PCI-E extender to move the card from that slot to elsewhere.Also: not sure if this is more an issue with the boardboard or the case I used, but I had to disconnect the USB 3.0 front panel header for cabling purposes, and the fit was so tight between the plastic guide and the cable plug that the whole guide came off with it when I pulled it off. I had to pry them back apart with a screwdriver and then carefully slip the guide back over the pins. No damager and everything works fine, but that was a bit scary.

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  5. Vance

    Great motherboard!
    The ASUS Prime B550M-A WiFi II has truly impressed me, not just with its technical prowess but also with how enjoyable it is to build with. Setting it up was a breeze – from unboxing to the final boot-up, the process was smooth. ASUS’s user-friendly BIOS interface played a significant role, making configuration straightforward even for someone not deeply versed in motherboard intricacies.Building my rig with this micro ATX motherboard was a delight. The compact form factor didn’t compromise on features, and the PCIe 4.0 support ensures my system runs at peak performance. The inclusion of WiFi 6 and 1Gb LAN means I have versatile connectivity options, making it a future-proof choice.The ECC memory support, a thoughtful addition, provides an extra layer of reliability for memory-intensive tasks. It’s a clear nod to users engaged in professional workloads where stability is paramount.Connectivity-wise, the HDMI 2.1 and D-Sub outputs supporting 4K at 60Hz deliver stunning visuals, enhancing my overall multimedia experience. The Addressable Gen 2 RGB Header and Aura Sync take the aesthetics to another level, allowing for personalized lighting that syncs seamlessly with the rest of my setup.As a builder, the ASUS Prime B550M-A WiFi II has become one of my top choices. It strikes a perfect balance between performance and user-friendly design, making it an absolute joy to work with. If you’re looking for a micro ATX motherboard that combines technical excellence with an enjoyable building experience, this one’s a winner.

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  6. Sly

    My next Nasa setup
    The ASUS Prime B450M-A II Motherboard is like the MVP of budget builds – solid, reliable, and not here to break the bank. Compatible with Ryzen 5000, 3rd, 2nd, and 1st Gen, it’s basically like the party host that invites everyone.Setup is easy, and it’s got all the essentials, so you won’t be digging through your couch cushions for extra ports. Plus, the BIOS is user-friendly, so even if you’re not a tech wizard, you won’t feel like you’re disarming a bomb.It supports up to 128GB of RAM, which is way more than I’ll ever use (but nice to have in case I decide to run NASA simulations from my room). All in all, it’s a solid choice that gets the job done without a lot of drama – and leaves you with some cash left over for, you know, actual games

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  7. Jeffrey

    Good deal!
    Purchased in a CPU, Motherboard combo. Easy assembly and setup. Works great!

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  8. Dan the Amazon Man

    It’s really awesome for everything (except most things)
    This motherboard was used for my first micro ATX build. It was actually fun to put together and works amazingly. However a couple caveats in most of the build process because of its small size. PCie ports are there but if you have a slightly big graphics card? No they aren’t. That means installing wifi internally is very dubious and difficult (I got a tplink USB wifi 6 product). Additionally NO ARGB 3 PIN ON THIS BOARD. Really have no idea why they would only have a RGB header and no argb to be seen. This means most rgb products WILL NOT FUNCTION unless you get an additional hub. Overall I like this board but it will really cost you 115 dollars at least unless you are using Ethernet and no argb…

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  9. RB

    I recently tested out the ASUS Prime B550-PLUS Motherboard, and here’s a breakdown of its features to save you scrolling through a book of details and my experience using it:The Good Stuff• Dropped this board into my PC build and it booted like a champ with my Ryzen processor• PCIe 4.0 slots meant my graphics card ran smooth as butter• HDMI 2.1 connection handled 4K displays without breaking a sweat• RGB header let me add some fancy light show to my build• 1Gb LAN connection stayed stable during intense gaming sessionsOpportunities• Installation needs some tech know-how – not a beginner’s board• Might be overkill if you’re not running a performance-focused system• RGB sync can be finicky with different component brands• Price point is higher than basic motherboards• BIOS updates require a bit of patience and tech skillsBottom Line: High-end AMD board for serious PC builders who want performance and style.

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  10. Romeo

    Me llegó en buenas condiciones y funciona muy bien y a buen precio, recomendado.

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  11. Jesús Vázquez

    La compré para usarla con una Ryzen 5 5500 y una gtx 1070 y no tuve ningún problema. Los únicos detalles que me disgustaron es que al momento de prenderla no quería reconocer la M2 que le instalé, tuve que añadir una SSD, y esa sí la reconoció al momento. El segundo detalle es que no podía instalarle Windows 11, tuve que hacer algunas modificaciones a la BIOS y volver a instalar el sistema operativo a la M2.

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  12. Francisco Gonzalez

    Buen precio y calidad para migrar a ryzen.

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  13. Una Persona Mas

    Muy Buena Placa Madre, La Recomiendo Si van A Armar una pc Gamer Barata, Llego en Tiempo Y Forma

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    ASUS Prime B450M-A II AMD AM4 (Ryzen 5000, 3rd/2nd/1st Gen Ryzen Micro ATX Motherboard (128GB DDR4, 4400 O.C.), NVMe, HDMI 2.0b/DVI/D-Sub, USB 3.2 2, BIOS Flashback, and Aura Sync)
    ASUS Prime B450M-A II AMD AM4 (Ryzen 5000, 3rd/2nd/1st Gen Ryzen Micro ATX Motherboard (128GB DDR4, 4400 O.C.), NVMe, HDMI 2.0b/DVI/D-Sub, USB 3.2 2, BIOS Flashback, and Aura Sync)

    Original price was: $89.99.Current price is: $79.99.

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