ASRock B550 Pro4 ATX AMD B550 AM4 Socket DDR4 128GB PCIe 4.0 Motherboard – B550 PRO4
- Supports AMD Ryzen 3000, 4000 G-Series, and 5000 Series processors for versatile performance
- ASRock USB 3.2 Gen2 with Type-A and Type-C ports (10 Gb/s) for ultra-fast connectivity
- Hyper M.2 (PCIe Gen4x4) delivers NVMe SSD speeds up to 64 Gb/s, a standout for storage enthusiasts
- Full Coverage M.2 Heatsink ensures optimal drive cooling during heavy use
- Super Alloy design with XXL Aluminum Heatsink and 50A Power Choke for unmatched durability
- Supports up to 128GB DDR4 memory with overclocking up to 4733+ MHz for extreme performance
- HDMI 2.1 with 4K UHD and HDR support for stunning visuals
- 7.1 CH HD Audio with Nahimic Audio for premium sound quality
Description
ASRock B550 PRO4 Motherboard – Unleash High-Performance Computing
The ASRock B550 PRO4 motherboard delivers exceptional performance for AMD Ryzen enthusiasts, combining cutting-edge technology with robust durability. Designed with the AMD B550 chipset, this ATX motherboard supports Ryzen 3000, 4000 G-Series, and 5000 Series processors, ensuring compatibility with the latest AM4 socket CPUs. Its standout feature, the ASRock USB 3.2 Gen2, offers lightning-fast data transfer speeds of up to 10 Gb/s through both Type-A and Type-C ports, making it ideal for modern high-speed peripherals. The ASRock Super Alloy construction enhances stability with an XXL Aluminum Alloy Heatsink and Premium 50A Power Choke, ensuring your system stays cool and reliable under heavy workloads.
What sets this motherboard apart is its ASRock Hyper M.2 slot, supporting PCIe Gen4x4 for blazing-fast NVMe SSD speeds up to 64 Gb/s, perfect for gamers and professionals seeking rapid storage performance. Paired with the ASRock Full Coverage M.2 Heatsink, it keeps your drives cool during intense operations. The Sapphire Black PCB and 2oz Copper design not only add a sleek aesthetic but also improve signal quality and heat dissipation. With support for up to 128GB of DDR4 memory and extreme overclocking capabilities (up to 4733+ MHz with select APUs), this board is built for power users who demand flexibility and speed.
Connectivity is a breeze with dual graphics outputs via HDMI 2.1 and D-Sub, supporting 4K UHD playback and HDR for immersive visuals. The 7.1 CH HD Audio powered by Realtek ALC1220/ALC1200 codecs, combined with Nahimic Audio, delivers premium sound quality for an exceptional multimedia experience. Whether you’re building a gaming rig or a productivity powerhouse, the ASRock B550 PRO4 stands out with its Full Spike Protection, Steel Slot Gen4, and POST Status Checker, offering peace of mind and unmatched reliability.
Feature | Specification |
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Unique Feature | 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: XXL Aluminum Alloy Heatsink, Premium 50A Power Choke, Sapphire Black PCB, High Density Glass Fabric PCB, 2oz Copper PCB ASRock Steel Slot Gen4 ASRock Full Coverage M.2 Heatsink ASRock Hyper M.2 (PCIe Gen4x4) ASRock POST Status Checker (PSC) ASRock Full Spike Protection (for all USB, Audio, LAN Ports) ASRock Live Update & APP Shop |
CPU | Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors (Please refer to CPU support list for details) Digi Power design 8 Power Phase design |
Chipset | AMD B550 |
Memory | Dual Channel DDR4 Memory Technology 4 x DDR4 DIMM Slots AMD Ryzen series CPUs (Vermeer): 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): 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): 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): 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): DDR4 3400+(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 Note: For Ryzen Series APUs (Picasso, Cezanne, and Renoir), ECC is only supported with PRO CPUs. Due to OS limitations, actual memory size may be less than 4GB under 32-bit Windows OS. For 64-bit Windows OS with 64-bit CPU, there is no such limitation. |
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 (Actual support may vary by CPU) DirectX 12, Pixel Shader 5.0 Shared memory default 2GB, max shared memory supports up to 16GB (requires 32GB system memory installed) Dual graphics output: HDMI and D-Sub ports by independent display controllers Supports HDMI 2.1 with max. resolution up to 4K x 2K (4096x2160) @ 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 2.1 Port (Compliant HDMI monitor required) Supports HDR (High Dynamic Range) with HDMI 2.1 Supports HDCP 2.3 with HDMI 2.1 Port (Picasso supports HDCP 2.2 with HDMI 2.0 Port) Supports 4K Ultra HD (UHD) playback with HDMI 2.1 Port Supports Microsoft PlayReady |
Audio | 7.1 CH HD Audio with Content Protection (Realtek ALC1220/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): 2 x PCI Express x16 Slots (PCIE1: Gen4x16 mode; PCIE3: Gen3 x4 mode) AMD Ryzen series APUs (Cezanne and Renoir): 2 x PCI Express x16 Slots (PCIE1: Gen3x16 mode; PCIE3: Gen3 x4 mode) AMD Ryzen series APUs (Picasso): 2 x PCI Express x16 Slots (PCIE1: Gen3x8 mode; PCIE3: Gen3 x4 mode) 2 x PCI Express 3.0 x1 Slots Supports AMD Quad CrossFireX and CrossFireX 1 x M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module Supports NVMe SSD as boot disks |
Storage | 6 x SATA3 6.0 Gb/s Connectors, support RAID (RAID 0, RAID 1, and RAID 10), NCQ, AHCI, and Hot Plug 1 x Hyper M.2 Socket (M2_1), supports M Key type 2260/2280/22110 M.2 PCI Express module up to Gen4x4 (64 Gb/s) (with Vermeer, Matisse) or Gen3x4 (32 Gb/s) (with Cezanne, Renoir, and Picasso) 1 x M.2 Socket (M2_3), supports M Key type 2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x2 (16 Gb/s) Note: M2_3 and SATA3_5_6 share lanes. If either one is in use, the other will be disabled. Supports NVMe SSD as boot disks. NVMe SSD is not supported with AMD Athlon 3000G Processors. Supports ASRock U.2 Kit |
Connector | 1 x COM Port Header 1 x SPI TPM Header 1 x Power LED and Speaker Header 2 x RGB LED Headers (Support up to 12V/3A, 36W LED Strip) 2 x Addressable LED Headers (Support up to 5V/3A, 15W LED Strip) 1 x CPU Fan Connector (4-pin) (Supports CPU fan of max 1A (12W) fan power) 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control) (Supports water cooler fan of max 2A (24W) fan power) 4 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control) (Supports water cooler fan of max 2A (24W) fan power) 1 x 24 pin ATX Power Connector 1 x 8 pin 12V Power Connector 1 x 4 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) Note: CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP, CHA_FAN3/WP, and CHA_FAN4/WP can auto-detect 3-pin or 4-pin fans |
Rear Panel I/O | Antenna Bracket 1 x PS/2 Mouse/Keyboard Port 1 x D-Sub Port 1 x HDMI Port 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 |
Software and UEFI | Software: ASRock Motherboard Utility (A-Tuning), ASRock Polychrome SYNC UEFI: ASRock Full HD UEFI, ASRock Instant Flash Note: These utilities can be downloaded from ASRock Live Update & APP Shop |
Support CD | Drivers, Utilities, AntiVirus Software (Trial Version), Google Chrome Browser and Toolbar |
Accessories | I/O Shield 2 x SATA Data Cables 3 x Screws for M.2 Sockets 1 x Standoff for M.2 Socket |
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 | ATX Form Factor: 12.0-in x 9.6-in, 30.5 cm x 24.4 cm Solid Capacitor design 2oz Copper PCB |
OS | Microsoft Windows 10 64-bit / 11 64-bit |
Certifications | FCC, CE ErP/EuP ready (ErP/EuP ready power supply required) |
Additional information
Weight | 1.7 kg |
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Dimensions | 31 × 29 × 8 cm |
Brand | ASROCK |
Desktop RAM | DDR4 |
Socket | AM4 CPU |
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