CPU Socket Type AM4
CPU Type Supports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors *
* Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G.
* BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASRock website for CPU support list.
Chipsets
Chipset AMD B550
Memory
Number of Memory Slots 2x288pin (DDR4)
Memory Standard AMD Ryzen series CPUs (Matisse) support DDR4 4600+ (OC) / 4533 (OC) / 4466 (OC) / 4400 (OC) / 4333 (OC) / 4333 (OC) / 4266 (OC) / 4200 (OC) / 4133 (OC) / 4000 (OC) / 3866 (OC) / 3800 (OC) / 3733 (OC) / 3600 (OC) / 3466 (OC) / 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
AMD Ryzen series APUs support DDR4 4733+ (OC) / 4666 (OC) / 4600 (OC) / 4533 (OC) / 4466 (OC) / 4400 (OC) / 4333 (OC) / 4266 (OC) / 4200 (OC) / 4133 (OC) / 4000 (OC) / 3866 (OC) / 3800 (OC) / 3733 (OC) / 3600 (OC) / 3466 (OC) / 3200/ 2933/ 2667/ 2400/ 2133 ECC & non-ECC, un-buffered memory*
* For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.
Maximum Memory Supported 64GB
** Due to the operating system limitation, the actual memory size may be less than 4GB for the reservation for system usage under Windows 32-bit OS. For Windows 64-bit OS with 64-bit CPU, there is no such limitation.
Channel Supported Dual Channel
Expansion Slots
PCI Express 4.0 x16 AMD Ryzen series CPUs (Matisse)
- 1 x PCI Express 4.0 x16 Slot (PCIE1: x16 mode)*
AMD Ryzen series APUs (Renoir)
- 1 x PCI Express 3.0 x16 Slot (PCIE1: x16 mode)*
* Supports PCIe riser cards to extend x8/x8 slots
* Supports NVMe SSD as boot disks
Other Slots 1 x Vertical M. 2 Socket (Key E) with the bundled WiFi- 802.11 ac module (on the rear I/O)
Storage Devices
SATA 6Gb/s 4 x SATA3 6.0 Gb/s Connectors, support RAID, NCQ, AHCI and Hot Plug
M. 2 1 x Hyper M. 2 Socket (M2_1), supports M Key type 2280 M. 2 SATA3 6.0G b/s module and M. 2 PCI Express module up to Gen4x4 (64Gb/s) (with Matisse) or Gen3x4 (32Gb/s) (with Renoir) *

* Supports NVMe SSD as boot disks
* Supports ASRock U. 2 Kit
SATA RAID 0/1/10
Onboard Video
Onboard Video Chipset Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU*
DirectX 12, Pixel Shader 5.0
Shared memory default 2GB. Max Shared memory supports up to 16GB. **
Dual graphics output: support HDMI and DisplayPort 1.4 ports by independent display controllers
Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz
Supports DisplayPort 1.4 Input with max. resolution up to 5K (5120x2880) @120Hz
Supports Auto Lip Sync, Deep Color (12bpc), xvYCC and HBR (High Bit Rate Audio) with HDMI 2.1 Port (Compliant HDMI monitor is required)
Supports HDR (High Dynamic Range) with HDMI 2.1
Supports HDCP 2.3 with HDMI 2.1 and DisplayPort 1.4 Ports
Supports 4K Ultra HD (UHD) playback with HDMI 2.1 and DisplayPort 1.4 Ports
Supports Microsoft PlayReady

* Actual support may vary by CPU
** The Max shared memory 16GB requires 32GB system memory installed
Onboard Audio
Audio Chipset Realtek ALC887
Audio Channels