Processor | athlon |
---|---|
RAM | DDR4 |
Memory Speed | 2400 MHz |
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ASUS Prime B350M-A/CSM AMD Ryzen AM4 DDR4 HDMI DVI VGA M.2 USB 3.1 mATX B350 Motherboard
Brand | ASUS |
CPU Socket | Socket AM4 |
Compatible Devices | Personal Computer |
RAM Memory Technology | DDR4 |
Compatible Processors | AMD Athlon |
Chipset Type | AMD B350 |
Memory Clock Speed | 2400 MHz |
Platform | Windows 10 |
Model Name | PRIME B350M-A/CSM |
CPU Model | Athlon |
About this item
- Powered by AMD Ryzen AM4, 7th generation Athlon and HD 2000 series processors to maximize connectivity and speed with NVMe M.2, USB 3.1, DDR4 and Gigabit LAN as well as COM header and PS2 ports for legacy needs
- ASUS Corporate Stable Model complimentary Advance Replacement and long lifecycle
- 5X Protection III Hardware-level safeguards provide component longevity and reliability
- Specially designed fan RGB header to support multi-color CPU fan LED strips
- Patent-pending SafeSlot Core fortified PCIe slot prevents damage caused by heavyweight GPUs
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Price | — | $99.99$99.99 | $189.89$189.89 | -8% $109.99$109.99 List: $119.99 | -22% $148.99$148.99 List: $189.99 | -19% $64.99$64.99 List: $79.99 |
Delivery | — | Get it as soon as Wednesday, Apr 2 | Get it Apr 15 - 18 | — | Get it as soon as Wednesday, Apr 2 | Get it as soon as Wednesday, Apr 2 |
Customer Ratings | ||||||
Sold By | — | Amazon.com | MemoryC | Amazon.com | Amazon.com | ASRock USA |
platform | windows 10 | windows 11, windows 10 | windows | windows 11, windows 10 | windows 11 | windows |
cpu socket | Socket AM4 | LGA 1700 | Socket AM4 | Socket AM4 | Socket AM4 | Socket AM4 |
memory slots | 4 | 2 | 4 slots de memória | 4 | 4 | 4 |
memory capacity | 32 GB | 64 GB | 128 GB | 128 GB | 128 GB | 32 GB |
compatible processors | AMD Athlon | Intel Celeron, Intel Pentium Gold | AMD 3rd Generation Ryzen | AMD Ryzen 5000/4000 Series Processors | AMD 3rd Generation Ryzen | Ryzen 2000 Series, Ryzen 3000 Series, Ryzen 4000 Series, Ryzen 5000 Series |
number of ports | 2 | 17 | 10 | 6 | 11 | 23 |
card interface | pci e | pci e | integrated | pci e | pci e | pci e |
RAM tech | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
spdif connector type | Optical | Optical | Optical | Optical | Optical | Optical |
system bus standard | SATA 3 | SATA 3 | SATA 2 | SATA 3 | SATA 3 | SATA 3 |
sata ports | — | 4 | — | 6 | 6 | 4 |
What's in the box
Product Description
Powered by AMD Ryzen AM4 processors, the ASUS Prime B350M-A/CSM delivers performance and reliability in microATX form with ASUS Corporate Stable Model complimentary advance replacement and guaranteed long product lifecycle. Access next-generation connectivity and speeds with NVMe M.2, USB 3.1, DDR4 support and Gigabit LAN.
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Product information
Technical Details
Brand | ASUS |
---|---|
Series | PRIME B350M-A/CSM |
Item model number | PRIME B350M-A/CSM |
Item Weight | 1.5 pounds |
Product Dimensions | 9.6 x 1 x 9.45 inches |
Item Dimensions LxWxH | 9.6 x 1 x 9.45 inches |
Manufacturer | ASUS Computer International Direct |
ASIN | B06WRWZNJC |
Is Discontinued By Manufacturer | No |
Date First Available | February 22, 2017 |
Additional Information
Customer Reviews |
4.6 out of 5 stars |
---|---|
Best Sellers Rank | #2,490 in Computer Motherboards |
Warranty & Support
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ASUS Prime B350M-A/CSM AMD Ryzen AM4 DDR4 HDMI DVI VGA M.2 USB 3.1 mATX B350 Motherboard
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From the manufacturer

Overview
Powered by AMD Ryzen AM4 processors, the ASUS Prime B350M-A/CSM delivers performance and reliability in microATX form with ASUS Corporate Stable Model complimentary advance replacement and guaranteed long product lifecycle. Access next-generation connectivity and speeds with NVMe M.2, USB 3.1, DDR4 support and Gigabit LAN.
- Powered by AMD Ryzen AM4 and 7th generation Athlon processors
- 5X Protection III
- Specially designed fan RGB header to support multi-color CPU fan LED strips
- Patent-pending SafeSlot Core

Built to Last
Prime B350 series motherboards are engineered with one of the industry-leading 5X Protection III, employing the finest components, excellent circuit design, and exacting standards to guarantee the quality and long-term durability of your motherboard.
Features
Brighten Up Your Build
Built-in LED lighting options can illuminate your build in a variety of mesmerizing styles. With specially-designed Fan RGB header control, you can even personalize your own fan lighting scheme with the exclusive AMD RGB Fan.
Optimized Cooling
Exclusive Fan Xpert ensures every fan achieves one of the best balance of cooling performance and low noise - and with Prime B350 series boards and their hardware-level 4-pin/3-pin PWM/DC mode for case fans, a simple BIOS adjustment lets you run your case fan in PWM/DC.
SafeSlot Core
Featuring a fortified design that's anchored to the motherboard by a special hook, Safeslot Core provides 1.6x stronger retention and 1.3x greater shearing resistance.
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Customer Reviews |
4.2 out of 5 stars 377
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4.2 out of 5 stars 463
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4.4 out of 5 stars 545
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4.6 out of 5 stars 932
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CPU Socket | AMD AM4 | AMD AM4 | AMD AM4 | AMD AM4 |
Chipset | AMD X370 | AMD X370 | AMD B350 | AMD B350 |
Form Factor | ATX | ATX | ATX | mATX |
Memory Slots | 4 x DIMM; Max. 64GB DDR4 | 4 x DIMM; Max. 64GB DDR4 | 4 x DIMM; Max. 64GB DDR4 | 4 x DIMM; Max. 64GB DDR4 |
Maximum Frequency | 3200MHz (OC) | 3200MHz (OC) | 3200MHz (OC) | 3200MHz (OC) |
Graphics Output | N/A | HDMI/DP | HDMI/DVI/RGB | HDMI/DVI/RGB |
PCIe 3.0 x16 | 2 x PCIe 3.0/2.0 x16 (x16 or dual x8) | 2 x PCIe 3.0/2.0 x16 (x16 or dual x8) | 1 x PCIe 3.0/2.0 x16 | 1 x PCIe 3.0/2.0 x16 |
M.2 | 1 x 22110 (PCIe 3.0 x4 & SATA) | 1 x 22110 (PCIe 3.0 x4 & SATA) | 1 x 22110 (PCIe 3.0 x4 & SATA) | 1 x 22110 (PCIe 3.0 x4 & SATA) |
USB 3.1 | 3 ports @ PCIe 3.0 x2: Front: x1 Type-C Rear: x2 Type-A | 3 ports @ PCIe 3.0 x2: Front: x1 Type-C Rear: x2 Type-A | 2 ports @ PCIe 3.0 x2: Rear: x2 Type-A | 2 ports @ PCIe 3.0 x2: Rear: x2 Type-A |
ASUS Aura Sync RGB Lighting | Yes | Yes (with 1 AURA RGB Strip Header) | Yes | Yes |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the motherboard has a nice appearance and works well. They find it dependable and good quality, with a solid build. Many consider it a great starter board for the price. The BIOS interface is easy to use and there are enough USB ports for peripherals. Installation is straightforward and straightforward.
AI-generated from the text of customer reviews
Customers like the motherboard's functionality. It works well with Windows 10 and has no issues with overclocking or power consumption. They find it easy to use and say it gets the job done.
"...This is perfect for everything else and can handle moderate OC. Look it up on YouTube as well if you'd like to." Read more
"...I've had zero issues with this motherboard and would definitely buy it again." Read more
"...drivers for this MoBo so as soom you boot it up, your mouse and keyboard works just fine...." Read more
"...I don't plan on overclocking, and the board has no problem with my 1500X and tempatures are great even with the stock Wraith Spire cooler...." Read more
Customers appreciate the motherboard's design. They find it pleasing to the eye, with a nice strip on the board and good overall performance. The BIOS UI is described as beautiful, with a lot of options and information. Overall, customers are satisfied with the small form factor and performance of this motherboard.
"...The Good - This variant of the b350-F motherboard is by far the best one to use, has a very easy (and pretty) bios interface - overclocking on this..." Read more
"...Still looks pretty and I don't care a lot about RGB stuff. *..." Read more
"...-Beauty BIOS UI, with a bunch of options and info. -RAM QLV is quite impresive, being compatible with most of the best RAM in the market...." Read more
"...on overclocking, and the board has no problem with my 1500X and tempatures are great even with the stock Wraith Spire cooler...." Read more
Customers appreciate the good board quality. They find it dependable, well-built, and stable. The condition of the motherboard is good, though some customers mention an old BIOS version. Overall, they consider it a solid choice and a good product from ASUS.
"...the amount of features this board offers, including its build quality is amazing...." Read more
"...It's a lot of grey, but the heat sinks look great. Build quality felt good, but it's been so long since I built a computer that I didn't really have..." Read more
"Asus makes great boards, and this is no exception...." Read more
"...Bling is awesome, but this mobo runs solidly for me, and up and running quickly, which is even better...." Read more
Customers find the motherboard easy to install. They mention it's straightforward setup, with a good BIOS and enough USB ports for peripherals. It's simple to build and mount, and everything works neatly from the first power on. The front panel connectors are easier to connect, and the light show is not too overpowering. Overall, customers are satisfied with the ease of installation and the quality of the product.
"...bios interface - overclocking on this badboy is so easy and straightforward that you will be able to do it without even watching a YouTube video..." Read more
"...Easy to mount, everything worked neat from the first power on . Pro's:..." Read more
"...The board has a simple, clean aethetic. RGB is limited and subtle. It's a lot of grey, but the heat sinks look great...." Read more
"...I'm in day 3 of the build's testing. It was one of the easiest installs I've ever done...." Read more
Customers appreciate the value for money of the motherboard. They say it's a good board for the price, and a great starter board.
"...this model of B350-F vs the Prime Plus vs A370, this one offered the most bang for buck and had the complete list of features i needed along with..." Read more
"...let the Ryzen CPUs do their own auto-turbo and XFR thing, it's a great product at a great price." Read more
"...I was impressed with the specs and features it had within this price point...." Read more
"...I'd consider this a good deal." Read more
Customers appreciate the board's features. They find it has a complete set of enthusiast-grade features on a pretty inexpensive board, with a nice BIOS UI and lots of options and information. The board has 4 RAM slots, plenty of headers for everything they need, and support for higher end AMD processors. The BIOS settings are usable and outstanding.
"...this one offered the most bang for buck and had the complete list of features i needed along with some basic RGB features included...." Read more
"...-Beauty BIOS UI, with a bunch of options and info. -RAM QLV is quite impresive, being compatible with most of the best RAM in the market...." Read more
"...This board has quite feature packed but not exactly a stand out...." Read more
"I love how easy it is to overclock and tinker with settings on this board, and especially, the Aura color control stuff...." Read more
Customers enjoy the motherboard's lighting. They appreciate the LED lighting and control features. The board is reliable and lights up properly.
"...For moderate overclocking, a plethora of ports and cool RGB lighting as well as multiple points for fan and AIO connections, i would highly..." Read more
"...M.2 slot, USB 3.1 ports, multiple PCIe slots, and even a little RGB lighting...." Read more
"...the fit and finish are top notch and the RGB lighting makes a cool effect under your graphics card but it has it's warts it would seem...." Read more
"...The bios is easy to navigate and the onboard lights are very nice...." Read more
Customers have mixed opinions about the memory support of the motherboard. Some find it good for overclocking, with a straightforward BIOS and no issues overclocking their Ryzen 1600 to 3.9 GHz. Others report issues with 16GB+ of memory over 2800MHz despite DOCP. There are also complaints about memory not running at its rated speed but running at a higher speed than the QVL list.
"...* Memory overclocking is pretty good...." Read more
"...and there are 6 sata ports for extra storage, and I had no issues overclocking my Ryzen 1600 to 3.9 GHz and I have seen many on 4.0 GHz with same..." Read more
"...Sure it only has two fans headers and only has space for one GPU...." Read more
"...is, you get the best of both worlds when it comes to looks and performance." Read more
Reviews with images

By far the best Processor in terms of money/value in the market
Top reviews from the United States
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- Reviewed in the United States on October 12, 2017Size: ATXStyle: ROG Strix B350-F GamingVerified PurchaseI just built my new PC afte 15 years! In between i was a dedicated console gamer until finally i decided to get back into the PC world and enjoy the higher framerates and better resolutions. After doing some homework, and based on my needs, i decided that the new AMD Ryzen 5 1600X was good for me. I wanted a machine that had some decent power and offered most bang for buck!
When looking into supporting motherboards for the Ryzen 5 i kept reading forums on Reddit and watching tons of YouTube videos by Paul's Hardware, Bitwit, Linus's Tech Tips and of course Jay'sTwoCents. Considering these guys are all pros and have what seems like the deepest pockets and sponsorships and all i couldnt really afford the best of the best system. However, when comparing this model of B350-F vs the Prime Plus vs A370, this one offered the most bang for buck and had the complete list of features i needed along with some basic RGB features included.
The Good - This variant of the b350-F motherboard is by far the best one to use, has a very easy (and pretty) bios interface - overclocking on this badboy is so easy and straightforward that you will be able to do it without even watching a YouTube video although i would recommend you watch one prior to doing anything on it. Pricing of this thing can't be beat either, i purchased this when it was for $104.99 on Amazon and had a $20 rebate from ASUS bringing it down to just $85. At that price, the amount of features this board offers, including its build quality is amazing. This board fit perfectly in my Phanteks P400 tower without feeling too tight at all. There are also a plethora of USB ports on the back including 3.0 as well. Overall quality, price and build of it is very impressive. The board also stays relatively cool and i have not experienced any spikes in temps.
The Not So Good - The only thing i disliked was that the board did not include a USB type C port. That is literally it! Everything else was perfect for my needs and booted up like a champ when i first built everything on it.
Overall - This B350-F board is the best option to get and can even save you some money. For moderate overclocking, a plethora of ports and cool RGB lighting as well as multiple points for fan and AIO connections, i would highly recommend this board. The lack of a USB Type C port is the only thing going against this board, other than that i am extremely glad with my purchase and do not regret it at all. If you're on the fence of getting this vs the A370, i would say go with this unless you are truly into water cooling and doing high Overclocking for extended periods of time. This is perfect for everything else and can handle moderate OC. Look it up on YouTube as well if you'd like to.
- Reviewed in the United States on August 5, 2017Size: ATXStyle: ROG Strix B350-F GamingVerified PurchaseI am writing this review to enter into the "Join The Republic- Your Path to Legendary Continues" campaign
I was having a hard time trying to choose which AM4 motherboard to get, as nothing had all the features I wanted (at least the ALC1220 audio codec, Intel Ethernet, USB 3.1 Gen 2 ports, and decent VRMs) without being ridiculously expensive. So I was really glad that this came out before I bought something and that I didn't have to compromise.
Having said that, if you aren't interested in those features, you could get something that is normally a bit cheaper like the ASUS Prime B350-Plus or the MSI B350 TOMAHAWK. If you need Crossfire or SLI support, get an X370 motherboard that is certified for that (do check the specs for that, as some X370s don't support SLI). Also, you might find overclocking to be better on *some* of the more expensive motherboards, but YMMV.
Anyway, this motherboard has been great so far:
Pros:
* Seems to have good overclocking support (will update this later.)
* Audio is great. However, if you don't have very good speakers/headphones or aren't extremely picky, it's definitely overkill.
* Memory overclocking is pretty good. My Corsair Vengeance LPX 8GB (CMK8GX4M2B3000C15) kit did work at 2133MHz but didn't work at 3000MHz out of the box. It wouldn't POST with the XMP profile that was loaded on the RAM. However, boosting the voltage up a bit (from 1.35V to ~1.36V) or fiddling with the timings got it working at 2933MHz.
* Includes 4 SATA cables, so you can actually use the 4 SATA ports off the chipset plus an M.2 drive without having to buy extra SATA cables. It's a little thing, but it's still helpful.
* Speaking of which, some motherboards have SATA ports that are connected to controllers that don't support RAID. On this board, the SATA ports off the chipset (*not* the SoC) do support RAID, so you could run RAID 10. Not important for most people, but it's nice that it's there.
Neutral:
* RGB LEDs on the chipset are covered up by large graphics cards, giving the motherboard a soft glow. Still looks pretty and I don't care a lot about RGB stuff.
* No external clock generator, but that seems to be limited to only some X370 boards.
* The CPU cooler backplate wasn't stuck onto the board with tape or glue. Depending on what kind of cooler you will use, that might not matter, but it does make installing the Wraith Spire stock cooler included with the Ryzen 5 1600 a little bit trickier. Just make sure the board is on a hard, non-bendable surface, so that the plate has support and will stay in place.
* Someone's fingerprint was on the metal shield that says "SupremeFX". The fingerprint came off easily with a cloth though, so no big deal.
Cons:
* A bit pricier than some B350 boards, albeit with more features.
* XMP profile didn't work out of the box. This could change with future BIOS updates.
* No PS/2 port, but the more expensive X370 version of this board has one.
This was my first computer build, so I'm sure I made some mistakes, but I'm really happy with how it has turned out so far. I've had zero issues with this motherboard and would definitely buy it again.
Top reviews from other countries
- Harry BrearReviewed in the United Kingdom on January 11, 2019
5.0 out of 5 stars Really nice motherboard
Size: ATXStyle: ROG Strix B350-F GamingVerified PurchaseHas plenty of everything, rear IO, fan headers, two RGB headers for that lighty up goodness, and loads more. Not had a single problem with the board yet, overclocking my Ryzen 7 1700 was an absolute breeze, and the ASUS BIOS is really nice to use. Lastly I have to mention the included parts, you get so much more than I expected! DVD with drivers, loads of cable ties, four SATA cables, RGB Extension cables, free coaster, and more. Would 100% recommend this board, especially for the price.
- Amazon CustomerReviewed in India on July 29, 2017
5.0 out of 5 stars Five Stars
Size: Micro ATXStyle: PRIME B350M-A/CSMVerified PurchaseGood product
-
たてのんReviewed in Japan on August 31, 2017
5.0 out of 5 stars 一発で安定動作
Size: Micro ATXStyle: PRIME B350M-A/CSMVerified Purchaseまぁあまり心配していませんでしたが、さくさく組み込んで一発で安定動作しました。
一月くらい動かしてますが特に問題はありません。
一点。私はWindows7 Pro(x64)のシステムで、そのままマザーボードとCPUとメモリのリプレースを試みましたが、結果は散々で、Ryzen使うなら予めWindows10にしておくか、Windows10のインストールDVDを用意してクリーンインストールをお勧めします。
(キーボードとマウスがUSBオンリーだと詰みます。なんとかWindows7を起動して、HDDに残ってたWindows10のISOをDVDに焼いて、DVD起動からアップグレードに成功したものの、とにかく面倒だった)
- G. ScottReviewed in Canada on July 12, 2018
5.0 out of 5 stars so I was pretty confident buying it used from Amazon Warehouse
Size: Micro ATXStyle: PRIME B350M-A/CSMVerified PurchasePicked this up on an Amazon Warehouse deal and saved more the $20 over the normal price. Never had any issue with ASUS boards, even e-waste recovered boards, so I was pretty confident buying it used from Amazon Warehouse.
The prime B350 is a simple board for a small price, but it packs all the important modern features you need for the current CPU in 2017/2018.
You DO NOT get extra bells and whistle like onboard Wi-Fi, an extra PCI-e x16 slots, 10Gbps LAN, or an extra LAN port.
But what you DO get is the full chipset features of AMD B350 with Overclocking tools, A decent number of USB 3.0 and 3.1 ports, a PCI-E 4x NVME slot, 6 SATA III port, and most importantly a solid reliable motherboard that will outlive any ones upgrade cycle.
It's not the cheapest and it's not the most featured board, but for all around reliability, and price its a great value.
G. Scottso I was pretty confident buying it used from Amazon Warehouse
Reviewed in Canada on July 12, 2018
The prime B350 is a simple board for a small price, but it packs all the important modern features you need for the current CPU in 2017/2018.
You DO NOT get extra bells and whistle like onboard Wi-Fi, an extra PCI-e x16 slots, 10Gbps LAN, or an extra LAN port.
But what you DO get is the full chipset features of AMD B350 with Overclocking tools, A decent number of USB 3.0 and 3.1 ports, a PCI-E 4x NVME slot, 6 SATA III port, and most importantly a solid reliable motherboard that will outlive any ones upgrade cycle.
It's not the cheapest and it's not the most featured board, but for all around reliability, and price its a great value.
Images in this review
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JOMAReviewed in Mexico on February 8, 2018
5.0 out of 5 stars En apariencia una excelente calidad y funcionalidades.
Size: ATXStyle: ROG Strix B350-F GamingVerified PurchaseEstaba indeciso de adquirir esta tarjeta madre para utilizarla con un Ryzen 5 1600 y una memoria Corsair Vengance led de 3000 mhz. (CMU16GX4M2C3000C15) ya que no estaba seguro si mi memoria correría realmente a su velocidad. Finalmente instalé la Mother e inmediatamente actualicé el bios, después de ello me habilitó el DOCP ASUS que es como el XMP de Intel y mi memoria funciona a 3000 mhz y hasta el momento no hay problema alguno. (Hay que actualizar sino la detecta sólo a 2133)
Algo que me gustó mucho es el puerto LAN y el audio, la calidad de ambos se percibe desde el momento.
Creo que sí vale la pena pagar el extra por esta tarjeta madre en comparación con otras b350. Realmente no piensdo overlockear por el momento pero se siente la calidad de la tarjeta, todavía me falta probarla mucho pero hasta ahora todo bien.
El bios está demasiado rebuscado para mi gusto pero es cuestión de adaptarse.