B450M PRO4 R2.0

Supports AMD AM4 Socket Ryzen™ 2000, 3000 and 5000 Series Desktop Processors
Digi Power design
10 Power Phase design

AM4

AMD Promontory B450

Dual Channel DDR4 Memory Technology
4 x DDR4 DIMM Slots
AMD Ryzen series CPUs (Matisse) support DDR4 3200 / 2933 / 2667 / 2400 / 2133 ECC & non-ECC, un-buffered memory*
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 (Picasso) support DDR4 2933 / 2667 / 2400 / 2133 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
Max. capacity of system memory: 128GB**
Supports Extreme Memory Profile (XMP) memory modules
15μ Gold Contact in DIMM Slots

*For Ryzen Series CPUs (Picasso and Raven Ridge), ECC is only supported with PRO CPUs.
Please refer to below table for AMD non-XMP memory frequency support.

DDR4

3200 / 2933 / 2667 / 2400 / 2133 MHz

3200

4 Slots

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.**
Three graphics output options: D-Sub, DVI-D and HDMI
Supports Triple Monitor
Supports HDMI 1.4 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 1.4 Port (Compliant HDMI monitor is required)
Supports HDCP 1.4 with DVI-D and HDMI 1.4 Ports
Supports 4K Ultra HD (UHD) playback with HDMI 1.4 Port

*Actual support may vary by CPU
**The Max shared memory 16GB requires 32GB system memory installed.

None

7.1 CH HD Audio with Content Protection (Realtek ALC892/897 Audio Codec)
Supports Surge Protection

AMD Ryzen series CPUs (Matisse, Summit Ridge and Pinnacle Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x16 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
AMD Ryzen series CPUs (Picasso, Raven Ridge)
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x8 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)
AMD Athlon series CPUs
- 1 x PCI Express 3.0 x16 Slot (PCIE2: x4 mode)*
- 1 x PCI Express 2.0 x16 Slot (PCIE3: x4 mode)

- 1 x PCI Express 2.0 x1 Slot
- Supports AMD Quad CrossFireX™ and CrossFireX™

*Supports NVMe SSD as boot disks

PCIe 3.0

- 4 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug*
- 1 x Ultra M.2 Socket (M2_1), supports M Key type 2242/2260/2280 M.2 PCI Express module up to Gen3 x4 (32 Gb/s) (with Matisse, Picasso, Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon series APU)**
- 1 x M.2 Socket (M2_2), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module

*M2_2 and SATA3_3 share lanes. If either one of them is in use, the other one will be disabled.

**Supports NVMe SSD as boot disks
Supports ASRock U.2 Kit

- PCIe Gen3
- SATA3

N/A

1 x COM Port Header
1 x TPM Header
1 x Chassis Intrusion Header
1 x Power LED and Speaker Header
1 x RGB LED Header*
1 x Addressable LED Header**
1 x AMD Fan LED Header***
1 x CPU Fan Connector (4-pin)****
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)*****
3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)******
1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector
1 x Front Panel Audio Connector
2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports) (Supports ESD Protection)

*Supports in total up to 12V/3A, 36W LED Strip
**Supports in total up to 5V/3A, 15W 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.
*****The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
******The Chassis/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power.
CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use.

1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x DVI-D Port
1 x HDMI Port
2 x USB 2.0 Ports (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) (Supports ESD Protection)
1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) (Supports ESD Protection)
4 x USB 3.2 Gen1 Ports (Supports ESD Protection)
1 x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED)
HD Audio Jacks: Line in / Front Speaker / Microphone

PCIE x1 Gigabit LAN 10/100/1000 Mb/s
Realtek RTL8111H
Supports Wake-On-LAN
Supports Lightning/ESD Protection
Supports Energy Efficient Ethernet 802.3az
Supports PXE

None

Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm
Solid Capacitor design

Temperature Sensing: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Fan Tachometer: CPU, CPU/Water Pump, Chassis/Water Pump Fans
Quiet Fan (Auto adjust chassis fan speed by CPU temperature): CPU, CPU/Water Pump, Chassis/Water Pump Fans
Fan Multi-Speed Control: CPU, CPU/Water Pump, Chassis/Water Pump Fans
CASE OPEN detection
Voltage monitoring: +12V, +5V, +3.3V, Vcore

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

ASRock USB 3.2 Gen2
- ASRock USB 3.2 Gen2 Type-A Port (10 Gb/s)
- ASRock USB 3.2 Gen2 Type-C Port (10 Gb/s)
ASRock Super Alloy
- Premium Power Choke
- Sapphire Black PCB
- High Density Glass Fabric PCB
- 2oz Copper PCB
ASRock Ultra M.2 (PCIe Gen3 x4)
ASRock Full Spike Protection (for all USB, Audio, LAN Ports)
ASRock Live Update & APP Shop

Software
- ASRock A-Tuning
- ASRock Polychrome SYNC
- ASRock XFast LAN
UEFI
- ASRock Full HD UEFI
- ASRock Instant Flash
- ASRock Easy RAID Installer

*These utilities can be downloaded from ASRock Live Update & APP Shop.

Microsoft Windows 10 64-bit

N/A