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ASRock Motherboard Fatal1ty AB350 Gaming K4 AMD AM4 B350 DDR4 PCI Express

MPN: Fatal1ty AB350 Gaming K4 | SKU: PB5192
Regular Price: $175.47
Price: $132.46
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  • 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 and operating system is Microsoft windows 10 64-bit
  • 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3)
  • 8 USB 3.0 (1 Type-C, 2 Front, 5 Rear)
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Frequently Bought With

  • Key Selling Points

Key Selling Points

  • 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 and operating system is Microsoft windows 10 64-bit
  • 6 SATA3, 1 Ultra M.2 (PCIe Gen3 x4), 1 M.2 (SATA3)
  • 8 USB 3.0 (1 Type-C, 2 Front, 5 Rear)
  • Description
  • Product Details
  • Customer Reviews
  • Q&A


The ASRock Fatal1ty AB350 gaming K4 Motherboard is equipped to handle the AMD AM4 APUs and Ryzen processors. Along with these processors, it is compatible with DDR4 memory, PCIe 3.0, M.2, and Realtek Audio.

Powered by the AMD B350 chipset and has support for 4 x 288-pin DIMM memory sticks with a max memory of up to 64GB. This motherboard has 6 SATA ports and 1 x 10/100/1000 Mbps Ethernet built-in. Advanced features of the motherboard include: support for RAID, stylish Black / Red design.

  • AMD Promontory B350 Chipset
  • Supports DDR4 Memory


  • ASRock Fatal1ty AB350 Gaming K4 Motherboard
  • Quick Installation Guide
  • Support CD
  • I/O Shield
  • 2 x SATA Data Cables
  • 2 x Screws for M.2 Sockets

Brand: ASRock

MPN: Fatal1ty AB350 Gaming K4

UPC: 4717677333152

Compatibility: ATX

Packaging: Retail

Condition: New

Product Details

Part Number
AB350 Gaming K4
CPU Socket Type
Processor Type
Supports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
AMD Promontory B350
Number of Memory Slots
Memory Standard
AMD Ryzen series CPUs support DDR4 3200+OC)/ 2933OC)/ 2667/ 2400/ 2133 *
AMD 7th Gen A-Series APUs support DDR4 2400/ 2133 *
* Please refer to Memory Support List on 's website for more information.
Maximum Memory Supported
Channel Supported
Dual Channel
PCI Express 3.0 x16
AMD Ryzen series CPUs
2 x PCI Express 3.0 x16 Slots (single at x16 (PCIE2); dual at x16 (PCIE2) / x4 (PCIE4))*
AMD 7th A-Series APUs
2 x PCI Express 3.0 x16 Slots (single au x8 (PCIE2); dual at x8 (PCIE2) / x2 (PCIE4))*
PCI Express x1
4 x PCI Express 2.0 x1 Slots
SATA 6Gb/s
4 x SATA3 6.0Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug*
2 x SATA3 6.0Gb/s Connectors by ASMedia ASM1061, support NCQ, AHCI and Hot Plug
*M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be disabled.
1 x Ultra M.2 Socket (M2_1), supports 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32Gb/s) (with Ryzen Series CPU) or Gen3 x2 (16Gb/s) (with A-Series APU)**
1 x M.2 Socket (M2_2), supports 2230/2242/2260/2280/22110 M.2 SATA3 6.0*Gb/s module**

**If M2_1 is occupied, PCIE4 will be disabled
**Supports NVMe SSD as boot disks
**Supports U.2 Kit
Onboard Video Chipset
Integrated AMD Radeon R-Series Graphics in A-series APU*
- DirectX 12, Pixel Shader 5.0
- Max. shared memory 2GB
- Three graphics output options: D-Sub, DVI-D and HDMI
- Supports Triple Monitor
- Supports HDMI up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz
- Supports DVI-D up to 1920x1200 @ 60Hz
- Supports D-Sub up to 1920x1200 @ 60Hz
- Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI Port (Compliant HDMI monitor is required)
- Supports HDCP with DVI-D and HDMI Ports
- Supports Full HD 1080p Blu-ray (BD) playback with DVI-D and HDMI Ports

*Actual support may vary by CPU
Audio Chipset
Realtek ALC892
Audio Channels
7.1 Channels
*To configure 7.1 CH HD Audio, it is required to use an HD front panel audio module and enable the multi-channel audio feature through the audio driver.
LAN Chipset
Realtek RTL8111GR
Max LAN Speed
1 x PS/2 keyboard/mouse port
Video Ports
1 x D-Sub Port
1 x DVI-D Poru
1 x HDMI
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
USB 3.1
1 x USB 3.1 Gen1 Type-C Port
5 x USB 3.1 Gen1 Ports
USB 1.1/2.0
2 x USB 2.0 Ports * 1 x Fatal1ty Mouse Port (USB 2.0) is included
Audio Ports
HD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB
2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports)
Other Connectors
1 x COM Port Header
1 x TPM Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
1 x AMD Fan LED Header*
1 x CPU Fan Connector (4-pin)**
3 x Chassis Fan Connectors (4-pin) (Smart Fan Speed Control)***
1 x Front Panel Audio Connector

*Supports in total up to 12V/3A, 36W LED Strip.
*The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M.
**The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power.
***CHA_FAN2 and CHA_FAN3 can auto detect if 3-pin or 4-pin fan is in use.
Form Factor
Dimensions (W x L)
12.0" x 8.8"
Power Pin
1 x 24-pin ATX Power Connector
1 x 8-pin 12V Power Connector
Gaming Armor:
- 15µ Gold Contact in DIMM Slots
- Creative Sound Blaster Cinema 3

Unique Feature:
Super Alloy
- Premium Power Choke
- Matte Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
Steel Slots
Ultra M.2 (PCIe Gen3 x4)
Full Spike Protection (for all USB, Audio, LAN Ports)
Live Update & APP Shop

- 128MB AMI UEFI Legal BIOS with multilingual GUI support
- Supports "Plug and Play"
- ACPI 5.1 compliance wake up events
- Supports jumperfree
- SMBIOS 2.3 support
- DRAM Voltage multi-adjustment

Software and UEFI:
- F-Stream
- Key Master
- APP Charger
- XFast LAN*
- Full HD UEFI
- Instant Flash
- Internet Flash
- Easy RAID Installer
*These utilities can be downloaded from Live Update & APP Shop.

Support CD:
- Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar

Hardware Monitor:
- CPU/Chassis temperature sensing
- CPU/Chassis Fan Tachometer
- CPU/Chassis Quiet Fan
- CPU/Chassis Fan multi-speed control
- Voltage monitoring: +12V, +5V, +3.3V, Vcore

- Microsoft Windows 10 64-bit

- ErP/EuP ready (ErP/EuP ready power supply is required)

Package Includes

Customer Reviews

Review Summary
44.44% (4)
11.11% (1)
0.0% (0)
11.11% (1)
33.33% (3)
By Emile Smith
Five stars
Works as expected
By Vicente Herrera
Terrible user interface
This motherboard is a huge hassle and the ram slots are terribly hard to fit in. I feel like the motherboard is gonna snap in two. The holes for the fans are in bad positions and most fan backplates will not fit. It comes with its own backplate but doesn't work with other fans which make no sense.
By Bartolomeu Peixoto
Four stars
Very good motherboard, work great.
By Julie Jensen
Works great and was easy to install(note check entire list of ...
Works great and was easy to install(note check entire list of tools. They included a standoff tool to make them much easier).
By Amandine Dupuis
Awesome mobo
- excellent value for the features you get for the price.- overclocking performance very close to or even matching that of x370 motherboards. Tweaktown's review shows it can handle an 1800x at 4ghz with proper cooling.- 2 m.2 slots, one of which supports up to 32gbps and the other at 20gbps. There's pricier x370 motherboards that have only one!- 2 rgb headers on the top-right which are easily accessible.- all fan headers are 4-pin and support pwm.- bios has lots of options while keeping a simple, straight-forward layout that's easy to navigate. Cpu frequency can be entered manually, lots of speed profiles for the fan headers (including custom), and bios can be updated using the instant flash option.- recognized my flare x 16gb ram kit at the proper speed and timings no problem (2400, 15-15-15-39).- nice aesthetics.This is a mid-range motherboard with features and performance found on higher-end motherboards. My complaints against it are minor for the most part, and it more than makes up for its shortcomings overall. To me, only the asus rog strix b350-f has comparable price-to-performance/features, and even then this one has the two m.2 slots and a seemingly better bios and ram support. The award it received from tweaktown is well-earned.
By Gennaro Paul
crackling or popping sounds on speakers or hedphones
Working with a ryzen 5 1600 without oc and windows 10 pro. Realtek audio chip sounds good but with win10 i was having problems, i was getting crackling or popping sounds on speakers or hedphones when an app was openning or when i was doing any thing more. It seems to be a common problem.I've tried evereything, power consumption settings, enable/disable effects on the speaker properties, updating drivers but the problem persists. I'm very disapointed of this. I had a more cheap asrock with a 1st gen i3 and didn't have that problem.For me sounds is crucial so i'd return this mb but for me is too complicated doing it.I give it 2 stars because other than that the mb is working well.
By Ezra Roberts
Five Stars
Works great so far
By Robin Fontai
Failed after 6 months
First time i've had a motherboard fail on me.Built this on 06/14/17 and it failed in november and december of 2017. Using: ryzen 5 1600 team dark 16gb ddr4 corsair 750w psu evga gtx 960 ocz 120gb ssd wd 1tb green windows 10 pro 64bit Did not overclock. Computer had rebooted randomly when gaming (overwatch and pubg). Then it would continue to do so and afterward not boot at all (fans and case powers on but will not go into windows or bios) with no display. I've narrowed it down to the motherboard based on:replacing the ram,replacing psu removing the cmos battery unplugging all usb devices updating bios to 3.40 (lasted long enough to upgrade before failing again)fresh windows 10 install (thought it was windows 10 updates) unplugging hard drives (to try and get into the bios only)putting the gpu into another working computer. In the mean time, i've placed an order for the msi b350 tomahawk.
By Alexis Martinez
The motherboard did not have the latest bios and I ...
The motherboard did not have the latest bios and i could not update the bios because i would have to buy a second amd cpu. Had to return it.


Question & Answers
By OutletPC Shopper on 2018-07-25
Does this support Ryzen 2000 series chipsets out of the box or would it require a BIOS flash in order to support the 2nd gen Ryzen chips?

By Customer Service on 2018-08-01

This board would require a BIOS flash to be compatible with the 2000 series Ryzen processors.

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Fatal1ty AB350 Gaming K4

ASRock Motherboard Fatal1ty AB350 K4 AMD AM4 B350 DDR4

Price: $132.46
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