| SPECIFICATIONS |
| Brand | ASRock |
| Series | PRO Series |
| Model | B450 Pro4 |
| CPU | AMD AM4 Socket |
| Digi Power Design |
| 9 Power Phase Design |
| Supports 105W Water Cooling (Pinnacle Ridge); Supports 95W Water Cooling (Summit Ridge); Supports 65W Water Cooling (Raven Ridge) |
| Chipset | AMD Promontory B450 |
| Memory | Dual Channel DDR4 Memory Technology |
| 4x DDR4 DIMM Slots |
| AMD Ryzen Series CPUs (Pinnacle / Summit Ridge) Support DDR4 3200 (OC)/2933(OC)/2667/2400/2133 ECC & Non-ECC, Un-Buffered Memory *1 |
| AMD Ryzen Series CPUs (Raven Ridge) Support DDR4 3200 (OC)/2933/2667/2400/2133 Non-ECC, Un-Buffered Memory *1 |
| Maximum Capacity of System Memory: 64GB *2 |
| 15μ Gold Contact in DIMM Slots |
| BOIS | 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 |
| Graphics | Integrated AMD Radeon Vega Series Graphics in Ryzen Series APU *3 |
| DirectX 12, Pixel Shader 5.0 |
| Shared Memory Default 2GB. Maximum Shared Memory Supports up to 16GB. *4 |
| Three Graphics Output Options: D-Sub, HDMI and DisplayPort 1.2 |
| Supports Triple Monitor |
| Supports HDMI with Maximum Resolution Up to 4K x 2K (4096x2160) @ 24Hz / (3840x2160) @ 30Hz |
| Supports DisplayPort 1.2 with Maximum Resolution Up to 4K x 2K (4096x2160) @ 60Hz |
| Supports D-Sub with Maximum 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 HDMI and DisplayPort 1.2 Ports |
| Supports 4K Ultra HD (UHD) Playback with HDMI and DisplayPort 1.2 Ports |
| Audio | 7.1 CH HD Audio with Content Protection (Realtek ALC892 Audio Codec)*5 |
| Premium Blu-Ray Audio Support |
| Supports Surge Protection |
| ELNA Audio Caps |
| LAN | 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 |
| Slots | AMD Ryzen Series CPUs (Summit Ridge and Pinnacle Ridge) |
| 2x PCI Express 3.0 x16 Slots (PCIE2: x16 Mode; PCIE4: x4 Mode) *6 |
| AMD Ryzen Series CPUs (Raven Ridge) |
| 2x PCI Express 3.0 x16 Slots (PCIE2: x8 Mode; PCIE4: x4 Mode) (If You Use Athlon 2xxGE Series APU, PCIE2 Slot Will Run at x4 Mode.) *6 |
| 4x PCI Express 2.0 x1 Slots |
| Supports AMD Quad CrossFireX and CrossFireX *7 |
| Storage | 4x SATA3 6.0 Gb/s Connectors, Support RAID (RAID 0, RAID 1 and RAID 10), NCQ, AHCI and Hot Plug *8 |
| 2x SATA3 6.0 Gb/s Connectors by ASMedia ASM1061, Support NCQ, AHCI and Hot Plug |
| 1x 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 Summit Ridge, Raven Ridge and Pinnacle Ridge) or Gen3 x2 (16 Gb/s) (with Athlon 2xxGE Series APU) *9 |
| 1 x M.2 Socket (M2_2), Supports M Key Type 2230/2242/2260/2280/22110 M.2 SATA3 6.0 Gb/s Module and M.2 PCI Express Module Up to Gen3 x2 (16 Gb/s) *9 |
| Connector | 1x COM Port Header |
| 1x TPM Header |
| 1x Power LED and Speaker Header |
| 1x RGB LED Header *10 |
| 1x Addressable LED Header *11 |
| 1x AMD Fan LED Header *12 |
| 1x CPU Fan Connector (4-pin) *13 |
| 1x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control) *14 |
| 3x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control) *15 |
| 1x 24 pin ATX Power Connector |
| 1x 8 pin 12V Power Connector |
| 1x Front Panel Audio Connector |
| 2x USB 2.0 Headers (Support 4 USB 2.0 Ports) (Supports ESD Protection) |
| 1x USB 3.1 Gen1 Header (Supports 2 USB 3.1 Gen1 Ports) (Supports ESD Protection) |
| Rear Panel I/O | 1x PS/2 Mouse/Keyboard Port |
| 1x D-Sub Port |
| 1x HDMI Port |
| 1x DisplayPort 1.2 |
| 2x USB 2.0 Ports (Supports ESD Protection) |
| 1x USB 3.1 Gen 2 Type-A Port (10 Gb/s) (Supports ESD Protection) |
| 1x USB 3.1 Gen 2 Type-C Port (10 Gb/s) (Supports ESD Protection) |
| 4x USB 3.1 Gen 1 Ports (Supports ESD Protection) |
| 1x RJ-45 LAN Port with LED (ACT/LINK LED and SPEED LED) |
| HD Audio Jacks: Line In / Front Speaker / Microphone |
| Software & UEFI | Software: |
| ASRock A-Tuning |
| ASRock Polychrome RGB |
| ASRock XFast LAN |
| UEFI: |
| ASRock Full HD UEFI |
| ASRock Instant Flash |
| ASRock Easy RAID Installer |
| Support CD | Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
| Hardware Monitor | Temperature Sensing: CPU, MB |
| 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 |
| Voltage Monitoring: 12V, 5V, 3.3V, Vcore |
| Form Factor | ATX Form Factor (30.5 x 22.4 cm) |
| Solid Capacitor Design |
| Operating System | Microsoft Windows 10 64-bit |
| Compliance | FCC, CE, ErP/EuP Ready (ErP/EuP Ready Power Supply is Required) |
| Notes | *1 For Ryzen Series CPUs (Raven Ridge), ECC is only supported with PRO CPUs. |
| *2 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. |
| *3 Actual support may vary by CPU |
| *4 The Max shared memory 16GB requires 32GB system memory installed. |
| *5 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. |
| *6 Supports NVMe SSD as boot disks. If M2_1 is occupied, PCIE4 will be disabled. |
| *7 This feature is only supported with Ryzen Series CPUs (Summit Ridge, Pinnacle Ridge and Raven Ridge). |
| *8 M2_2, SATA3_3 and SATA3_4 share lanes. If either one of them is in use, the others will be disabled. |
| *9 If M2_1 is occupied, PCIE4 will be disabled. Supports NVMe SSD as boot disks. Supports ASRock U.2 Kit |
| *10 Supports in total up to 12V/3A, 36W LED Strip |
| *11 Supports in total up to 5V/3A, 15W LED Strip |
| *12 The AMD Fan LED Header supports LED strips of maximum load of 3A (36W) and length up to 2.5M. |
| *13 The CPU Fan Connector supports the CPU fan of maximum 1A (12W) fan power. |
| *14 The CPU/Water Pump Fan supports the water cooler fan of maximum 2A (24W) fan power. |
| *15 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. |
| Warranty Information |
| Warranty | Manufacturer's Warranty |
Contact for Availability
