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ASRock Fatal1ty AB350 Gaming K4 AM4 AMD Promontory B350 SATA 6Gb/s USB 3.1 HDMI ATX AMD Motherboard

Ships from United States. Most customers receive within 2-8 days.

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  • AMD Promontory B350
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
  • AMD Ryzen series CPUs support DDR4 3200+(OC)/ 2933(OC)/ 2667/ 2400/ 2133 *
  • AMD 7th Gen A-Series APUs support DDR4 2400/ 2133 *
  • * Please refer to Memory Support List on ASRock's website for more information.

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  • Overview
  • Specifications
  • Warranty & Returns
  • Reviews

Fatal1ty AB350 Gaming K4

  • ASRock Super Alloy
  • Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
  • Supports DDR4 3200+ (OC) (Ryzen CPU) / 2400 (A-series APU)
  • 2 PCIe 3.0 x16, 4 PCIe 2.0 x1
  • Graphics Output:HDMI, DVI-D, D-Sub
  • 7.1 CH HD Audio (Realtek ALC892 Audio Codec), Supports Creative SoundBlaster Cinema3
  • 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
  1. HDMI, DVI-D,D-Sub Suppotrs Triple Monitor
    *A-Series APU only
  2. USB Type-C
  3. 2oz Copper PCB
  4. Creative Sound Blaster Cinema3
  1. M.2 Socket (SATA3)
  2. 6 SATA3 6Gb/s
  3. PCI-E Steel Slots
  4. Ultra M.2 Socket (PCIe Gen3 x4)
  5. Solid Caps
  6. AMD AM4 Socket
    Supports A-Seires APUs (Bristol Ridge) and Ryzen Series CPUs(Summit Ridge)
  7. RGB LED Header
  8. Digi Power 9 Power Phase Design Premium Power Choke

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.

FOR GAMERS

Motherboards with enhanced audio and graphics design, plus improved stability, specifically tailored for gamers.

PCI-E STEEL SLOTS


The advanced PCI-E Steel Slots packed with solid cover that prevent any signal interference with graphics cards. It also ensures the heavy graphics cards to be well-installed in the PCI-E slots safely.

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.

Creative Sound Blaster™ Cinema 3


Sound Blaster™ Cinema 3 is the latest software that is designed with SBX Pro Studio to deliver a holistic audio experience. Whether you're gaming or watching a movie, Reality 3D technology lets you enable 5.1/7.1 surround sound for an additional layer of transience to your listening experience even with just a pair of headphones or stereo speakers.
AB350

RGB LED


Build your own colorful lighting system! RGB LED and header allows users to connect LED strip and create their unique PC style easily. The ASRock RGB LED utility can be downloaded directly or from an all-in-one utility ASRock Live Update & APP Shop!

  1. Drag the tab to customize your preference.
  2. Toggle on/off the RGB LED switch And choose the channel.
  3. Select a RGB LED light effect from the drop-down menu.

USB Type-C


A latest reversible USB Type-C design that fits the connector either way.

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
Premium 42A Power Choke
AB350

Compared to traditional chokes, ASRock's premium 42A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.

Matte Black PCB
AB350

A new mysterious matte black and copper color scheme to match the prestigious components on ASRock's high-end motherboards.

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.

Gaming Armor
Built to Kill

Allows ASRock to be your most trustworthy ally, providing both hardware and software support.

Memory
AB350

15µ Gold Contact in DIMM Slots

Audio

Creative Sound Blaster™ Cinema 3

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

Key Master


Consists of two major features, Sniper Key and Macro Key. It enhances your mouse and keyboard with customizable macros, sniper modes, key repeat rates and repeat delay.
AB350

Fatal1ty Mouse Port


After plugging a USB mouse into the Fatal1ty Mouse Port and running F-Stream, gamers can choose their own preferred mouse polling rate from 125 Hz to 1000 Hz.
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

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 Gaming K4

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details
Ownership: more than 1 year
Verified Owner
2/ 5
15 Month Longevity

Pros: Easy install
Not much directions needed

Cons: No light indicator to show whether it is powered or not, hard to diagnose what problem I was having when my PC decided to suddenly shut off -- This con far exceeds the 3 Pro's I am giving.

Overall Review: Purchased this as a replacement for my last build's DOA mobo, worked great for 15 month, until it just suddenly decided to die on a day off...

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

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.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Reseat the CPU and heatsink fan.
• Test with 1 x memory module.
• Test with onboard video (CPU with iGPU/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
1/ 5
Terrible customer service after MOBO failure.

Pros: Worked for about 16 months without issue , worked with the new Ryzen out of the box.

Cons: Failed after 16 months, took PC to local shop as I could not figure out why it would not boot up - at all. They confirmed the mobo was dead. This MOBO has a 2 year warranty. Have been waiting over a month for ASrock to return my email and give me a RMA. I followed their websites directions, included a picture of the local computer place receipt, etc. - yep nothing. Don't buy from ASROCK - warranty is useless with this type of service.

Overall Review: DO NOT buy an Asrock Mother board- the warranty is useless, poor customer service.

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

Sorry for any inconvenience this may have caused you.
We will be more than happy to assist you for RMA.
Please contact us at http://event.asrock.com/tsd.asp

Thank you

ASRock Support
Tech Support Email: http://event.asrock.com/tsd.asp
Ownership: 1 month to 1 year
Verified Owner
4/ 5
Great Mobo

Pros: Was only $90 when I bought it last year
Has black/red color scheme that I love
Red LEDs are extremely subtle but still noticeable
Easy to build with

Cons: Ram slots are extremely close to the CPU. Do LOTS of research when buying an aftermarket cooler for this AM4. Took me 2 tries/buys to find one that didn't block any ram slots (Noctua NH-U12S). Most other coolers mount horizontally instead of vertically and end up blocking one or even two ram slots, making dual channel not an option. Noted, I do have Corsair Vengeance Pro RGB Ram, which is unusually tall for ram. Just be cautious.

Overall Review: Overall, not sure if its worth its now $150 price point, as there are many other better mobos out there for this price I believe. But if it ever hits $90 again like I paid for it, its a steal.

Did you find this review helpful?
Ownership: more than 1 year
Verified Owner
5/ 5
Excellent Motherboard

Pros: It was easy to set up for a first timer (Me) - Just follow the instruction guide to plug things in the right spots
I like the red/black outline
BIOS menu is easy to navigate and use
Allows easy overclocking of CPU

Cons: Ethernet adaptor didn't work right off the bat, had to download updates to a USB stick and update it to get internet working.

Overall Review: I bought this motherboard back in May of 2017 and paired it with the Ryzen 5 - 1600x processor. At the time, Ryzen processors were brand new and so were the motherboards supporting them. For the first few months, I didn't get full use of RAM speeds due to new hardware not quite working fully - specifically, the motherboard needed more work. But once some more updates were released, everything lined up and now it works beautifully.

Did you find this review helpful?
Ownership: 1 month to 1 year
Verified Owner
5/ 5
Great AMD Summit Board

Pros: Solid. Looks great. Newest bios version is great. Have a Ryzen 5 1600 overclocked to 3.9 and it is just solid.

Cons: Kind of finicky with memory. Finally got that worked out with (2) gskill 16gb Dual Channel

Did you find this review helpful?
3/ 5
Works alright but LEDs dead on arrival

Pros: It works
Posted on the first attempt
All ports work (except for the display ports but I have no way to know if they do or don't work)

Cons: LEDs around or under the heat spreader below the RAM slots do not work (it is not a software or BIOS problem I have reloaded and reinstalled everything including windows)
The BIOS overclocking is a little hard to understand to someone new to overclocking (my old motherboard would adjust the voltage according to the clock you set, this one is manual)

Overall Review: Would like a help section for the overclocking and/or it would help with overclocking (adjust voltage depending on the clock you set)

Did you find this review helpful?
Ownership: 1 week to 1 month
Verified Owner
1/ 5
Do NOT recommend this motherboard.

Pros: No pros because the motherboard is defective.

Cons: Received this motherboard today and does NOT work. No video output. I put in one of my spare video cards and got video output. Totally do NOT recommend this motherboard.

Overall Review: No, I would not recommend this motherboard.

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

We sincerely apologize for any inconvenience this may have caused you.
Please verify that using CPU has APU (integrated GPU) in order to work with onboard video.
If using CPU does not built-in APU that required discrete VGA card.
For more information, please visit link below for board's specification under Graphics section.
Link: https://www.asrock.com/mb/AMD/Fatal1ty%20AB350%20Gaming%20K4/index.us.asp#Specification

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
5/ 5
Great mid range board!

Pros: Enough BIOS feature to overclock R5 `600 to 3.9GHz stable. RAM did not get recognized via XMP but was able to manually adjust in BIO as well.

Cons: Better heatsinks, if overclocking make sure you got airflow, small heatsinks do just enough so some airflow will help VRMs

Overall Review: Would recommend this board to anyone looking for a good budget board

0 out of 2 people found this review helpful. Did you?
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