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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 2-10 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): 3 years
  • Limited Warranty period (labor): 3 years
  • Read full details
4/ 5
New 5.60 improved RAM capability

Pros: Pretty solid after BIOS update to 5.60

Cons: not as much OC'ing support as the newer gen

Other Thoughts: With previous bios my Team DDR4 3000 would not overclock past DDR4 2600. Now the system seems solid at DDR4 3000.

CPU- Ryzen 1700
RAM-Team T-Force DARK 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3000 (PC4 24000) Memory (Desktop Memory) Model TDGED416G3000HC16CDC01

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Second of these boards I have used in a build

Pros: Clearly marked and worked excellent for the customers needs.

Cons: None

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
2/ 5
Don't like it

Pros: USB-C
M.2

Cons: No built-in wifi
terrible BIOS

Other Thoughts: I don't recommend this motherboard, the BIOS is really wacky and it doesn't have build-in wifi if you didn't already know. If you can spend 10-15$ more on another MOBO I would recommend considering it....

0 out of 5 people found this review helpful. Did you?
Manufacturer Response:
Dear Dereck,

Thank you for purchase and review.
Unfortunately, the board does not included WiFi, please visit link below for boards' specification.
Spec. Link :https://www.asrock.com/mb/AMD/AB350%20Pro4/index.us.asp#Specification
We do have other board X370 Killer SLI/ac, that comes with WiFi built-in (https://www.asrock.com/mb/AMD/X370%20Killer%20SLIac/index.us.asp#Specification).

If you have any technical or warranty inquiry in the future, please contact us at https://event.asrock.com/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: https://event.asrock.com/tsd.asp
Ownership: more than 1 year
Verified Owner
5/ 5
It's got quirks, but it's a great board

Pros: - Easy setup
- Regular updates
- Plenty of good BIOS options
- Reliable

Cons: - Settings will reset upon updating BIOS version

Other Thoughts: As with many early Ryzen boards, watch out for c-state bugs. I'm a Linux user and until a month ago I have had nothing but problems with Linux on this board. Windows works great with none of these issues so it's not really the fault of the board. On any Linux distro I would get entire system lock ups if certain idle states were triggered. The solution is to edit /etc/default/grub and add poll=idle to the kernel line, then rebuild the initramfs. After this workaround i have had no lock ups but it took me over a year of trying different things to find the right options.

1 out of 1 people found this review helpful. Did you?
Ownership: more than 1 year
Verified Owner
1/ 5
Died, dead, deceased, is no more, perished.

Pros: It was great for about 60 days. . .

Cons: Died after 60 days. . .no eggs for you.

0 out of 3 people found this review helpful. Did you?
Manufacturer Response:
Dear Valued ASRock Customer,

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.
• Test with 1 x memory module, try with 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
Ownership: more than 1 year
Verified Owner
2/ 5
Watch out for this one

Pros: it has enough space for everything you want
runs okay for a while
it ends there

Cons: so ive had this board since September of 2017
since then ive had to replace it twice
it took a few months to get windows to run properly on this thing getting it to work with an ssd is hell you will have to fight this thing at every stage and if you mess up even a fraction of an inch say goodbye and your board is gone i do not recommend this product at all for anyone this is not a gaming board this is not a work load board get rid stay away and run from this board as fast as you can if you dont you'll be out 150 bucks with nothing to show for it

0 out of 3 people found this review helpful. Did you?
Ownership: 1 month to 1 year
Verified Owner
3/ 5
Running great no problems

Pros: I'm running this with the AMD RYZEN 7 1700 8-Core 3.0 GHz (3.7 GHz Turbo) and everything booted first time and has been running flawlessly for two weeks so far. After reading all the bad reviews I was afraid it would be an inferior board but its a great board. I haven't over clocked but I don't really need to. All my timings for memory and CPU are perfect. This board was on sale and cost a little over $50.00.I have used Asrock for many years now and have never had a problem with their boards. I still running the Asrock Fatility Killer X99 for 4 years now and still running strong.Been close to a month no rebate. Will knock off two eggs for this.until/if they send it

Cons: Not enough fan headers on-board.

1 out of 4 people found this review helpful. Did you?
Manufacturer Response:
Dear Patrick,

We sincerely apologize for any inconvenience this may have caused you.
For the rebate inquiry, please contact us at roger@asrockamerica.com
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: https://event.asrock.com/tsd.asp
Ownership: more than 1 year
Verified Owner
3/ 5
Worked for only a year

Pros: -Worked Well

Cons: -Only lasted a year

Other Thoughts: -would recommend to spend a little more money on a better brand (MSI, Asus etc...)

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

Sorry for any inconvenience this may have caused you.
We will be more than happy to assist you if the mainboard is malfunctioned.
Please contact us at https://event.asrock.com/tsd.asp

Thank you

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