| SPECIFICATIONS |
| Brand | ASRock |
| Series | Pro4 |
| Model | B550M Pro4 |
| CPU | Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 And 5000 G-Series Desktop Processors* |
| Digi Power Design |
| 8 Power Phase Design |
| Chipset | AMD B550 |
| Memory | Dual Channel DDR4 Memory Technology |
| 4x DDR4 DIMM Slots |
| AMD Ryzen Series CPUs (Vermeer) Support DDR4 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* |
| AMD Ryzen Series CPUs (Matisse) Support DDR4 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* |
| AMD Ryzen Series APUs (Cezanne) 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* |
| AMD Ryzen Series APUs (Renoir) 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* |
| AMD Ryzen Series APUs (Picasso) Support DDR4 3333 (OC) / 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* |
| BIOS | 256Mb AMI UEFI Legal BIOS With GUI Support |
| Supports "Plug And Play" |
| ACPI 5.1 Compliance Wake Up Events |
| Supports Jumperfree |
| SMBIOS 2.3 Support |
| CPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, 1.8VSB, VDDP Voltage Multi-Adjustment |
| Graphics | 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, HDMI and DisplayPort 1.4 |
| Supports Triple Monitor |
| Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 60Hz |
| Supports DisplayPort 1.4 with max. resolution up to 5K (5120x2880)@120Hz |
| 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 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 |
| Audio | 7.1 CH HD Audio With Content Protection (Realtek ALC1200 Audio Codec) |
| Premium Blu-Ray Audio Support |
| Supports Surge Protection |
| PCB Isolate Shielding |
| Individual PCB Layers For R/L Audio Channel |
| Nahimic Audio |
| 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 (Vermeer And Matisse) |
| - 2x PCI Express X16 Slots (PCIE1: Gen4x16 Mode; PCIE3: Gen3 X4 Mode)* |
| AMD Ryzen Series APUs (Cezanne And Renoir) |
| - 2x PCI Express X16 Slots (PCIE1: Gen3x16 Mode; PCIE3: Gen3 X4 Mode)* |
| AMD Ryzen Series APUs (Picasso) |
| - 2x PCI Express X16 Slots (PCIE1: Gen3x8 Mode; PCIE3: Gen3 X4 Mode)* |
| - 1x PCI Express 3.0 X1 Slot |
| - Supports AMD Quad CrossFireX And CrossFireX |
| - 1x M.2 Socket (Key E), Supports Type 2230 WiFi/BT PCIe WiFi Module |
| *Supports NVMe SSD As Boot Disks |
| Storage | - 6x SATA3 6.0 Gb/S Connectors, Support RAID (RAID 0, RAID 1 And RAID 10), NCQ, AHCI And Hot Plug* |
| - 1x Hyper M.2 Socket (M2_1), Supports M Key Type 2280 M.2 PCI Express Module Up To Gen4x4 (64 Gb/S) (With Vermeer, Matisse) Or Gen3x4 (32 Gb/S) (With Cezanne, Renoir And Picasso)** |
| - 1x M.2 Socket (M2_2), Supports M Key Type 2280 M.2 SATA3 6.0 Gb/S Module And M.2 PCI Express Module Up To Gen3 X2 (16 Gb/S)** |
| *M2_2 And SATA3_5_6 Share Lanes. If Either One Of Them Is In Use, The Other One Will Be Disabled. |
| **Supports NVMe SSD As Boot Disks |
| Connector | 1x COM Port Header |
| 1x SPI TPM Header |
| 1x Power LED And Speaker Header |
| 2x RGB LED Headers* |
| 2x Addressable LED Headers** |
| 1x CPU Fan Connector (4-Pin)*** |
| 1x CPU/Water Pump Fan Connector (4-Pin) (Smart Fan Speed Control)**** |
| 4x Chassis/Water Pump Fan Connectors (4-Pin) (Smart Fan Speed Control)***** |
| 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) |
| 2x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 Ports) (Supports ESD Protection) |
| *Support In Total Up To 12V/3A, 36W LED Strip |
| **Support In Total Up To 5V/3A, 15W LED Strip |
| ***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, CHA_FAN3/WP And CHA_FAN4/WP Can Auto Detect If 3-Pin Or 4-Pin Fan Is In Use. |
| Rear Panel I/O | Antenna Bracket |
| 1x PS/2 Mouse/Keyboard Port |
| 1x D-Sub Port |
| 1x HDMI Port |
| 1x DisplayPort 1.4 |
| 1x USB 3.2 Gen2 Type-A Port (10 Gb/S) (Supports ESD Protection) |
| 1x USB 3.2 Gen2 Type-C Port (10 Gb/S) (Supports ESD Protection) |
| 4x USB 3.2 Gen1 Ports (ASMedia ASM1074 Hub) (Supports ESD Protection) |
| 2x USB 2.0 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 and UEFI | Software |
| - ASRock Motherboard Utility (A-Tuning) |
| - ASRock XFast LAN |
| UEFI |
| - ASRock Full HD UEFI |
| - ASRock Instant Flash |
| *These Utilities Can Be Downloaded From ASRock Live Update & APP Shop. |
| Certifications | FCC, CE |
| ErP/EuP ready (ErP/EuP ready power supply is required) |
| Hardware Monitor | 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 |
| Voltage Monitoring: 12V, 5V, 3.3V, CPU Vcore, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 1.8V, VDDP |
| Form Factor | Micro ATX Form Factor: 24.4 cm X 24.4 cm |
| Solid Capacitor Design |
| 2oz Copper PCB |
| Warranty Information |
| Warranty | 3 Year Warranty |
In stock with Wootware
