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Black ATX motherboard with silver heatsinks and red accents

ASRock

ASRock Fatal1ty AB350 Gaming K4 AMD motherboard

SKU CH-S588-SVHSH

AM4 ATX board with B350 chipset, four DDR4 slots up to 64 GB, Ultra M.2 x4, dual x16 slots and 7.1 audio

  • CPU Socket TypeAM4
  • CPU TypeSupports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ry
  • ChipsetAMD Promontory B350
  • Number of Memory Slots4x288pin (DDR4)
  • Memory StandardAMD Ryzen series CPUs support DDR4 3200+(OC)/ 2933(OC)/ 2667
  • Maximum Memory Supported64GB
  • Supports Ryzen and A-Series APUs on AM4 socket
  • DDR4 memory up to 3200 MHz overclocked with four slots
  • Ultra M.2 slot delivers 32 Gb/s bandwidth for fast storage
  • Realtek ALC892 provides 7.1 channel high definition audio
  • Dual PCI Express 3.0 x16 slots enable multi-GPU configurations

ASRock Fatal1ty AB350 Gaming K4 AM4 ATX motherboard

This ASRock Fatal1ty AB350 Gaming K4 board uses the AMD Promontory B350 chipset on an ATX form factor. It fits AM4 socket processors including Ryzen Summit Ridge CPUs and Bristol Ridge A-Series APUs. Four 288-pin DDR4 slots support up to 64 GB in dual-channel mode.

Suits Ryzen builders needing dual x16 slots

The board suits builders who want two PCI Express 3.0 x16 slots and an Ultra M.2 socket running at Gen3 x4 with a Ryzen CPU. It also provides four SATA3 6.0 Gb/s ports from the chipset plus two more via ASMedia ASM1061. Users needing integrated Wi-Fi or more than four memory slots should look elsewhere.

Ultra M.2 socket M2_1 runs at Gen3 x4

The single Ultra M.2 socket (M2_1) accepts M Key 2242, 2260 or 2280 modules and delivers PCI Express 3.0 x4 bandwidth (32 Gb/s) when paired with a Ryzen processor. With an A-Series APU the same slot operates at x2 (16 Gb/s). This lane allocation is the key spec for storage performance.

Highlights

  • Supports Ryzen and A-Series APUs on AM4 socket
  • DDR4 memory up to 3200 MHz overclocked with four slots
  • Ultra M.2 slot delivers 32 Gb/s bandwidth for fast storage
  • Realtek ALC892 provides 7.1 channel high definition audio
  • Dual PCI Express 3.0 x16 slots enable multi-GPU configurations

Specifications

BrandASRock
SeriesFatal1ty
ModelAB350 Gaming K4
CPU Socket TypeAM4
CPU TypeSupports AMD Socket AM4 A-Series APUs (Bristol Ridge) and Ryzen Series CPUs (Summit Ridge)
ChipsetAMD Promontory B350
Number of Memory Slots4x288pin (DDR4)
Memory StandardAMD 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.
Maximum Memory Supported64GB
Channel SupportedDual Channel
PCI Express 3.0 x16AMD 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 at x8 (PCIE2); dual at x8 (PCIE2) / x2 (PCIE4))*
*Supports NVMe SSD as boot disks
*If M2_1 is occupied, PCIE4 will be disabled.
PCI Express x14 x PCI Express 2.0 x1 Slots
Serial ATA (SATA)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.
M.21 x Ultra M.2 Socket (M2_1), supports M Key type 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 M Key type 2230/2242/2260/2280/22110 M.2 SATA3 6.0Gb/s module**
**If M2_1 is occupied, PCIE4 will be disabled
**Supports NVMe SSD as boot disks
**Supports ASRock U.2 Kit
SATA RAID0/1/10
Onboard Video ChipsetIntegrated 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 with max. resolution up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz
- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution 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
- Suppo
Audio ChipsetRealtek ALC892
Audio Channels7.1 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 ChipsetRealtek RTL8111GR
Max LAN Speed1Gbps
PS/21 x PS/2 keyboard/mouse port
Video Ports1 x D-Sub Port
1 x DVI-D Port
HDMI1 x HDMI
RJ451 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
USB 3.11 x USB 3.1 Gen1 Type-C Port (Supports ESD Protection)
5 x USB 3.1 Gen1 Ports (Supports ESD Protection)
USB 1.1/2.02 x USB 2.0 Ports (Supports ESD Protection) * 1 x Fatal1ty Mouse Port (USB 2.0) is included
Audio PortsHD Audio Jacks: Line in / Front Speaker / Microphone
Onboard USB2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 ports) (Supports ESD Protection)
Other Connectors1 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 FactorATX
LED LightingRGB
Dimensions (W x L)12.0" x 8.8"
Power Pin1 x 24-pin ATX Power Connector
1 x 8-pin 12V Power Connector
FeaturesGaming Armor:
Memory
- 15µ Gold Contact in DIMM Slots
Audio
- Creative Sound Blaster Cinema 3
Unique Feature:
ASRock Super Alloy
- Premium Power Choke
- Matte Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
ASRock Steel Slots
ASRock Ultra M.2 (PCIe Gen3 x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop
BIOS:
- 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:
Software
Package ContentsAccessories:
Quick Installation Guide, Support CD, I/O Shield
2 x SATA Data Cables
2 x Screws for M.2 Sockets

Questions about this item

Will my case fit this ATX motherboard and its CPU cooler clearance?

The board uses the standard ATX form factor, so any case that accepts ATX will fit. Check your case specifications for maximum CPU cooler height to ensure the cooler you choose clears the socket area.

Which M.2 slot gives the fastest speed with a Ryzen CPU?

The Ultra M.2 socket (M2_1) runs at Gen3 x4 (32Gb/s) when a Ryzen series CPU is installed. The second M.2 slot (M2_2) operates at Gen3 x2 and shares lanes with SATA3_3, so using it disables that SATA port.

Can I run four sticks of DDR4 at 3200 MHz with a Ryzen processor?

The board has four DDR4 slots supporting up to 64GB in dual channel. Ryzen CPUs list DDR4 3200+(OC) as supported, but stability with four populated slots at that frequency depends on the memory kit and CPU memory controller; consult the ASRock memory support list for validated kits.

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