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ASRock AB350 Pro4 AM4 AMD Promontory B350 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard

Ships from United States. Most customers receive within 3-7 days.

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  • AMD Promontory B350
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge, Raven Ridge and Pinnacle Ridge)
  • AMD Ryzen series CPUs (Pinnacle Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Summit Ridge) support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory
  • AMD Ryzen series CPUs (Raven Ridge) support DDR4 3200+(OC)/ 2933/ 2667/ 2400/ 2133 non-ECC, un-buffered memory*
  • AMD 7th Gen A-Series APUs support DDR4 2400/ 2133 non-ECC, un-buffered memory
  • * For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs.

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

AB350 Pro4

  • ASRock Super Alloy
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge & Raven Ridge)
  • Supports DDR4 3200+ (OC) (Ryzen CPU) / 2400 (A-series APU)
  • 2 PCIe 3.0 x16, 4 PCIe 2.0 x1
  • AMD Quad CrossFireX™
  • Graphics Output:HDMI, DVI-D, D-Sub
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), ELNA Audio Caps
  • 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3)
  • 8 USB 3.0 (1 Type-C, 2 Front, 5 Rear)
  • Realtek Gigabit LAN

Armor Your VR Machine


Prepare yourself well to enjoy the impressive world of Virtual Reality. Before that, you have to make sure everything is qualified, including hardware, software and drivers. Motherboard is the key to connect every critical components and ASRock's VR Ready motherboards are definitely the one you're looking for. The premium qualify is assured by rigorous testing during development. The sturdy components and rock-slid performance makes you completely immersive in the VR scenario. Users can be assured to experience VR enjoyments without any compatibility problems.

Dual M.2 For SSD


One PCIe Gen3 x4 Ultra M.2 interface that pushes data transfer speeds up to 32Gb/s, and is compatible with ASRock's U.2 Kit for installing some of the world's fastest U.2 PCIe Gen3 x4 SSD. And the other one supports SATA3 6Gb/s M.2 modules.

USB Type-C


A latest reversible USB Type-C design that fits the connector either way.
AB350
Premium Power Choke
AB350

Compared to traditional chokes, ASRock's premium power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Sapphire Black PCB
AB350

Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.

High Density Glass Fabric PCB
AB350

High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.

2oz Copper


It comes with 2 ounces copper inner layers, using only carefully selected copper materials for PCB layers, delivering lower temperature and higher energy efficiency for overclocking.
AB350

Digi Power


Unlike traditional motherboards that use analog power, this motherboard uses a next generation digital PWM (Pulse-Width Modulation) design, which provides CPU Vcore voltage more efficiently and smoothly, so that the stability and lifespan of the motherboard is greatly enhanced.
AB350

ELNA Audio Caps


Who says high quality audio is only available on high-end motherboards? ASRock applied ELNA audio capacitors on mainstream and entry-level motherboards! Compared with traditional solid caps, the leakage current of ELNA audio caps is merely 3uA. This is the key to reduce noise level significantly and satisfy even the pickiest audiophiles.
AB350

Triple Monitor


Graphics, graphics and even more graphics! You've demanded for more eye candy, so this motherboard supports Triple Monitor. You may choose up to three display interfaces from the rear i/o to connect monitors and use them simultaneously without installing another graphics card.
*Supported with A-Series APUs only.
AB350

A-Tuning


A-Tuning is ASRock's multi purpose software suite with a new interface, more new features and improved utilities.
AB350

Live Update & APP Shop


ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.
AB350 The specification is subject to change without notice in advance. The brand and product names are trademarks of their respective companies. Any configuration other than original product specification is not guaranteed.
The above user interface picture is a sample for reference. The actual user interface may vary with the updated software version.

Learn more about the ASRock AB350 Pro4

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
Anonymous
Ownership: 1 week to 1 month
Verified Owner
4/ 5
Some Very Minor Issues 12/1/2019 10:15:16 AM

Cons: HDD LED header doesn’t seem to work.
Does not come with a speaker (that would indicate a successful POST).

Overall Review: Even though there are some minor flaws, I would still recommend this motherboard.

Did you find this review helpful?
Anonymous
Ownership: more than 1 year
Verified Owner
4/ 5
I would give 5 eggs BUT 10/7/2019 3:33:07 PM

Pros: With the M.2 cards boot time is amazing.

Cons: After a while the POST time started taking forever.

Overall Review: Purchased this MB 12/2017. Installation went smoothly, of course I have put a few systems together over the years.
This might help others: When the POST time starts being unreasonable ( > 20 sec? and longer), I feel things will only get worse and they have not failed me.
Twice now I have had to pop out the BIOS battery and bake the removed Mother board and all her friends at just less than the temperature of boiling water (100deg C). Getting the BIOS back to my normal is a challenge but do able. The first time, bake time was about an hour, second time I almost reached 3 hours. From past experience on other Circuit boards a week long bake has proven to be worth the effort. Don't know who started me doing this kind of thing but it was not my idea. I hear speculation that no lead in the solder is the issue.

0 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
2/ 5
Worked then died 10/7/2019 10:39:29 AM

Pros: Easily installed. Worked fantastic for about 9 months. Had a great price point for a budget build.

Cons: Turned on my computer which had been running with no issue for about nine months. Made it to the Windows log in. Walked away for a few minutes then came back to a dead computer. Troubleshooted my way down to the motherboard over the past few months. Even replaced the PSU. Ugh.

Overall Review: Comparing this experience with other reviews, the price point just isn't worth it. Going to look elsewhere for a replacement.

1 out of 1 people found this review helpful. Did you?
Manufacturer Response:
Dear Adam,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power.
• Clear the CMOS.
• Plug the 24 + 8 or 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: more than 1 year
Verified Owner
4/ 5
Good board, picky with ram 9/23/2019 7:04:36 AM

Pros: Solid, 4 ram slots, has all the ports I need, many things to tweak in the bios. Can overclock my Ryzen 1600 to 2650mhz and still be rock solidly stable.

Cons: Does not like my CORSAIR Vengeance LPX 8GB (2 x 4GB) 288-Pin DDR4 SDRAM DDR4 3000 (PC4 24000) CMK8GX4M2B3000C15R. will only run at 2400mhz when I was hoping to overclock it to 3200mhz or so.

Overall Review: Good board, My only problem was picky memory. The memory still works just at a lower mhz than rated. The memory works fine in other systems. I should have used different memory.

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
2/ 5
Very good product but. . . 9/16/2019 12:31:20 AM

Pros: Was easy to install and easy to configure. Worked well with games and video editing

Cons: I have had this in a system for just under 2 years, have not used it a lot. No overclocking a bit of gaming. It died, at first it would not boot consistently then it would not. D

Overall Review: Expected longer life. I know it is a gamble. I expected better from a name brand.

Did you find this review helpful?
Manufacturer Response:
Dear James,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Clear the CMOS.
• Test with single memory module, switching another memory if it same issue.
• Test with onboard video (CPU with APU or test with VGA card).
• Connect the monitor.
• Plug the 24 + 8 or 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
1/ 5
run away 9/10/2019 12:11:13 AM

Pros: Worked great for 6 months
Price (Bought on sale)

Cons: Bios
Bios
Bios

Overall Review: I have been building computers for almost 30yrs, legit MS-Dos days. So I was super excited to build a new gaming rig. I am a disabled veteran so price, value and performance are really important. A friend helped my search for parts because two sets of eyes are better than one. A little bit about my rig- Asrock AB350pro, 2nd Gen Ryzen 3, Asus 560, Samsung 860Evo M.2, 16gb Viper ram 3200, and a 500w Thermaltake 80+ power supply. I was running 7days to die at 70fps at med to high resolution and Conan Exiles at 80 fps. Overall exactly what I wanted and was hoping for in my new pc.

Then one day while playing Conan my monitor went green and locked up. I just everything down and waited an hour to turn my pc back on. Turned it on the monitor said it was receiving a signal but the screen was black. Long story short I tried to reset the Bios worked once and no more. Since then I have noticed an increase in complaints about Asrocks Bios for the Ryzen processors. I refuse to do a warranty claim due to the likely hood of getting another piece of junk. This is my first and last Asrock product.

0 out of 2 people found this review helpful. Did you?
Manufacturer Response:
Dear Jeremy,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with single memory module.
• Reseat video card firmly and 6+6 PCIE power (if applied).
• Connect the monitor.
• Plug the 24 + 8 or 4 pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: 1 month to 1 year
Verified Owner
1/ 5
Died after 10 months 8/7/2019 7:01:34 PM

Pros: When running it was great

Cons: Random shutdowns/crashes

Overall Review: I’ve tried for the life of me to get it running again but to no avail. Probably won’t be getting another ASRock motherboard.

Did you find this review helpful?
Manufacturer Response:
Dear ASRock Customer

We sincerely apologize for any inconvenience this may have caused you. For the BIOS update, customer could contact us at user@asrockamerica.com. We can assist you shortly

Thank you

ASRock SUPPORT
Tech Support Email: user@asrockamerica.com
Ownership: more than 1 year
Verified Owner
1/ 5
Random freezing issues 7/18/2019 8:49:23 AM

Pros: Inexpensive

Cons: It has a VRM undervoltage issue which causes the system to randomly freeze.

Overall Review: I've only had this motherboard for less than a year and I've been having random freezing issues a month or so after completing the build. This is a known issue and if you go to ASRock forums, you will find many people complaining about this motherboard and its random freezing issues. I ended up just ordering a whole different motherboard.

Did you find this review helpful?
Manufacturer Response:
Dear Ian,

We sincerely apologize for any inconvenience this may have caused you.
For the freeze issue, please trouble shoot the system following.
• Unplug the ATX power.
• Clear the CMOS.
• Test with 1 x memory module, switching another memory if its same issue.
• Check the CPU is not overheating.
• Allow better air circulation inside the chassis (install sufficient fans).

If you have any technical support inquiry, please contact us at http://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
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