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ASRock B550M Pro4

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ASRock B550M Pro4
Towards:gaming
Form Factor:micro-ATX
Socket:AMD AM4
Chipset:AMD B550
BIOS:Ami
RAM slots:DDR4 4 sl
RAM form factor:DIMM
RAM clock:4733 MHz
Sound (channels):7.1
Connectors:HDMI, M.2
Additional connectors:DisplayPort
Power connector:24 pin
Processor power:8 pin

A compact mid-range microATX motherboard based on the 2020 AMD B550 chipset with an AM4 processor socket. In addition to small overall dimensions that allow it to be installed in Minitower cases, it is distinguished by the presence of a complete set of up-to-date system/peripheral interfaces. Guaranteed compatible with 3rd Gen Ryzen 3000 4/6/8/12/16-core processors with Matisse/Matisse Refresh (7nm) cores and Ryzen 4000 APUs (Renoir core, 7nm).

The manufacturer is positioned as an affordable product of the middle price category, designed to create inexpensive gaming and universal home configurations. The design of the ASRock B550M Pro4 motherboard is simple, ergonomic and adapted for self-assembly. It is equipped with a high-quality eight-phase digital CPU power supply subsystem with an additional aluminium heatsink. Able to work absolutely stably for a long time under a dense multi-threaded gaming or computing load.

Allows you to install up to 128 GB of fast DDR4 RAM with an effective frequency of up to 4733 MHz, which is more than enough for any resource-intensive professional software and current/future games. Two M.2 SSD drives are supported, and one of them is capable of working with a high-speed PCI-E x4 Gen 4.0 interface. Realtek RTL8111H GbE controller provides fast traffic transmission without delays in LAN networks.

All specifications
Specifications B550M Pro4
Main
Featuresgaming
SocketAMD AM4
Form factormicro-ATX
Power phases8
VRM heatsink
Size (HxW)244x244 mm
Chipset
ChipsetAMD B550
BIOSAmi
UEFI BIOS
RAM
DDR44 slot(s)
Memory moduleDIMM
Operation mode2 channel
Max. clock frequency4733 MHz
Max. memory128 GB
XMP
Drive interface
SATA 3 (6Gbps)6
M.2 connector2
M.21xSATA/PCI-E 2x, 1xPCI-E 4x
M.2 SSD cooling
Integrated RAID controller / RAID 0, RAID 1 and RAID 10 /
Expansion slots
1x PCI-E slots1
PCI-E 16x slots2
PCI Modes16x/4x
PCI Express4.0
Steel PCI-E connectors
Internal connections
TPM connector
USB 2.02
USB 3.2 gen12
ARGB LED strip2
RGB LED strip2
Video outputs
D-Sub output (VGA)
HDMI output
HDMI versionv.2.1
DisplayPort
DisplayPort versionv.1.4
Integrated audio
AudiochipRealtek ALC1200
Sound (channels)7.1
Network interfaces
LAN (RJ-45)1 Gbps
LAN ports1
LAN controllerRealtek RTL8111H
External connections
USB 2.02
USB 3.2 gen14
USB 3.2 gen21
USB C 3.2 gen21
PS/21
Power connectors
Main power socket24 pin
CPU power8 pin
Fan power connectors6
CPU Fan 4-pin1
CPU/Water Pump Fan 4-pin1
Chassis/Water Pump Fan 4-pin4
Official Websiteasrock.com
Added to E-Catalogmay 2020
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog ASRock 2025 - new arrivals, bestsellers, and the most relevant models ASRock.
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ASRock ASRock B550M Pro4 AMD Socket AM4 Micro ATX HDMI/DisplayPort/VGA Dual M.2 USB C 3.2 Motherboard MBASR-B550MPRO4

Supports 3rd Gen AMD AM4 Ryzen / Future AMD Ryzen Processors8 Power Phase Design, Digi PowerSupports DDR4 4733+ (OC)1 PCIe 4.... more0 x16, 1 PCIe 3.0 x16, 1 PCIe 3.0 x1, 1 M.2 Key E for WiFiGraphics Output Options: HDMI, DisplayPort, D-SubAMD CrossFireX7.1 CH HD Audio (Realtek ALC1200 Audio Codec), Nahimic Audio6 SATA3, 1 Hyper M.2 (PCIe Gen4 x4), 1 M.2 (PCIe Gen3 x2 & SATA3)2 USB 3.2 Gen2 (Rear Type A+C), 8 USB 3.2 Gen1 (4 Front, 4 Rear)Realtek Gigabit LANNahimic AudioWhether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or even HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details.8 Power Phase DesignFeaturing sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.Premium 50A Power ChokeCompared to traditional chokes, ASRock's premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard.2oz Copper PCB2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance!SpecificationsUnique FeatureASRock 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 PCBASRock Steel Slot Gen4ASRock Full Coverage M.2 HeatsinkASRock Hyper M.2 (PCIe Gen4x4)ASRock POST Status Checker (PSC)ASRock Full Spike Protection (for all USB, Audio, LAN Ports)ASRock Live Update & APP ShopCPUSupports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen ProcessorsDigi Power design8 Power Phase designNot compatible with AMD Ryzen™ 5 3400G and Ryzen™ 3 3200G.ChipsetAMD B550MemoryDual Channel DDR4 Memory Technology4 x DDR4 DIMM SlotsAMD 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 memoryAMD 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 memoryMax. capacity of system memory: 128GBSupports Extreme Memory Profile (MP) memory modules15µ Gold Contact in DIMM SlotsBIOS256Mb AMI UEFI Legal BIOS with GUI supportSupports "Plug and Play"ACPI 5.1 compliance wake up eventsSupports jumperfreeSMBIOS 2.3 supportCPU, CPU VDDCR_SOC, DRAM, VPPM, 1.05V_PROM_S5, 2.5V_PROM, +1.8VSB, VDDP Voltage
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Asrock B550M Pro4 AMD B550 Socket AM4 micro ATX

Internal I/ONumber of M.2 (M) slots3USB 3.2 Gen 2 (3.1 Gen 2) connectors0Front panel connectorYes12V power connectorYesSuppor... moreted storage drive interfacesM.2, SATA IIIUSB 2.0 connectors2USB 3.2 Gen 1 (3.1 Gen 1) connectors2TPM connectorYesNumber of SATA III connectors0Number of SATA II connectors6Number of Parallel ATA connectors0Number of COM connectors1Number of chassis fan connectors4Front panel audio connectorYesEPS power connector (8-pin)YesCPU fan connectorYesATX Power connector (24-pin)Yes
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Asrock B550M Pro4 AMD B550 Socket AM4 micro ATX

Supports 3Rd Gen Amd Am4 Ryzen / Future Amd Ryzen Processors8 Power Phase Design Digi PowerSupports Ddr4 4733+ (Oc)1 Pcie 4.0... moreX16 1 Pcie 3.0 X16 1 Pcie 3.0 X1 1 M.2 Key E For WifiGraphics Output Options: Hdmi Displayport D-SubAmd Crossfirex7.1 Ch Hd Audio (Realtek Alc1200 Audio Codec) Nahimic Audio6 Sata3 1 Hyper M.2 (Pcie Gen4 X4) 1 M.2 (Pcie Gen3 X2 & Sata3)2 Usb 3.2 Gen2 (Rear Type A+C) 8 Usb 3.2 Gen1 (4 Front 4 Rear)Realtek Gigabit LanNahimic AudioWhether You Are Using Headphones A Headset External Or Internal Speakers Via Usb Wi-Fi Analog Output Or Even Hdmi Nahimic Audio Offers You The Most Engaging Listening Experience Vibrant And Rich With Details.8 Power Phase DesignFeaturing Sturdy Components And Completely Smooth Power Delivery To The Cpu. Plus It Offers Unmatched Overclocking Capabilities And Enhanced Performance With The Lowest Temperature For Advanced Gamers As Well.Premium 50A Power ChokeCompared To Traditional Chokes Asrocks Premium 50A Power Chokes Effectively Make The Saturation Current Up To Three Times Better Thus Providing Enhanced And Improved Vcore Voltage To The Motherboard.2Oz Copper Pcb2 Ounce Copper Inner Layers That Provide Stable Signal Traces And Power Shapes! Delivering Lower Temperature And Higher Energy Efficiency For Overclocking It's Able To Support The Latest Ddr4 Memory Modules With Most Extreme Memory Performance!SpecificationsUnique FeatureAsrock 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 PcbAsrock Steel Slot Gen4Asrock Full Coverage M.2 HeatsinkAsrock Hyper M.2 (Pcie Gen4x4)Asrock Post Status Checker (Psc)Asrock Full Spike Protection (For All Usb Audio Lan Ports)Asrock Live Update & App ShopCpuSupports 3Rd Gen Amd Am4 Ryzen / Future Amd Ryzen ProcessorsDigi Power Design8 Power Phase DesignNot Compatible With Amd Ryzen 5 3400G And Ryzen 3 3200G.ChipsetAmd B550MemoryDual Channel Ddr4 Memory Technology4 X Ddr4 Dimm SlotsAmd 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 MemoryAmd 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 MemoryMax. Capacity Of System Memory: 128GbSupports Extreme Memory Profile (Mp) Memory Modules15 Gold Contact In Dimm SlotsBios256Mb Ami Uefi Legal Bios With Gui SupportSupports "Plug And Play"Acpi 5.1 Compliance Wake Up EventsSupports JumperfreeSmbios 2.3 SupportCpu Cpu Vddcrsoc Dram Vppm 1.05Vproms5 2.5Vprom +1.8Vsb Vddp Voltage Multi-AdjustmentGraphicsIntegrated Amd Radeon Vega Series
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Asrock B550M Pro4 AMD B550 Socket AM4 micro ATX

Internal I/ONumber of M.2 (M) slots3USB 3.2 Gen 2 (3.1 Gen 2) connectors0Front panel connectorYes12V power connectorYesSuppor... moreted storage drive interfacesM.2, SATA IIIUSB 2.0 connectors2USB 3.2 Gen 1 (3.1 Gen 1) connectors2TPM connectorYesNumber of SATA III connectors0Number of SATA II connectors6Number of Parallel ATA connectors0Number of COM connectors1Number of chassis fan connectors4Front panel audio connectorYesEPS power connector (8-pin)YesCPU fan connectorYesATX Power connector (24-pin)Yes
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ASRock B550M Pro4 mATX Motherboard for AMD AM4 CPUs 90-MXBDK0-A0UAYZ

Nahimic Audio Whether you are using headphones, a headset, external or internal speakers, via USB, Wi-Fi, analog output or... moreeven HDMI, Nahimic Audio offers you the most engaging listening experience, vibrant and rich with details. The Sound Tracker is a visual indicator that points out the directions from which predominant sounds are coming. Each sound is properly positioned in 360° on a radar for a full immersion during the game. 8 Power Phase Design Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well. Premium 50A Power Choke Compared to traditional chokes, ASRock’s premium 50A power chokes effectively make the saturation current up to three times better, thus providing enhanced and improved Vcore voltage to the motherboard. 2oz Copper PCB 2 ounce copper inner layers that provide stable signal traces and power shapes! Delivering lower temperature and higher energy efficiency for overclocking, it's able to support the latest DDR4 memory modules with most extreme memory performance! RULE YOUR OWN LIGHTING WAY - POLYCHROME RGB This motherboard features onboard RGB headers and an addressable RGB header that allow motherboard to be connected to compatible LED devices such as strip, CPU fans, coolers, chassis and so on. Users may also synchronize RGB LED devices across the Polychrome RGB Sync-certified accessories to create their own unique lighting effects. *The addressable RGB LED header supports WS2812B addressable RGB LED strip (5V/Data/GND), with a maximum power rating of 3A (5V), a max of 80 LEDs and length within 2 meters. *The RGB LED header supports standard 5050 RGB LED strip (12V/G/R/B), with a maximum power rating of 3A (12V) and length within 2 meters. A SOLID M.2-SOLUTION PERFORMER Dual M.2 For SSD, Supports Type 22110 M.2 Ready for higher capacity and even faster Type 22110 M.2 NVMe SSD to fulfill the need of performance. Hyper M.2 socket that supports PCIe Gen4 x4 while M.2 socket is capable of running PCIe Gen3 x2 and SATA3 mode. M.2 Armors Good M.2 SSD protection is important for longevity and stability. ASRock provides a completed M.2 armor solution that makes SSDs to run in a certain low temperature. Reinforced Steel Slot [PCIe 4.0 Version] The reinforced steel slot comes with the next generation PCI Express 4.0 standard. The various benefits include: Extra anchor points Stronger latch Ensure signal stability Make sure heavy graphics cards to be well-installed. Dual USB 3.2 Gen2 (Type-A + Type-C) This motherboard has a pair of onboard Type-A and Type-C USB 3.2 Gen2 ports built on the rear i/o for supporting next generation USB 3.2 Gen2 devices and to deliver up to 10 Gbps data transfer rates. M.2 (KEY E) For WiFi Besides the onboard LAN port, users may also choose 802.11ac wireless connections by M.2 (Key E) slot.
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