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Nahimic Audio
Whether 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.
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:
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.
*Wi-Fi module is not included.
Post Status Checker
An easy troubleshooting tool that shows the CPU / DRAM / VGA / BOOT operation every time you start up the system. Post Status Checker is an fast and easy way to identify the source of the problem.
Super Alloy Motherboard
XXL Aluminum Alloy Heatsink
Extra large aluminum alloy heat sinks that effectively take away heat from the MOSFET and chipset so that your whole system may perform more stable.
Sapphire Black PCB
Pure black PCB appearance. The new Sapphire Black PCB represents rock-solid quality and gives the motherboard a more mysterious touch.
High Density Glass Fabric PCB
High Density Glass Fabric PCB design that reduces the gaps between the PCB layers to protect the motherboard against electrical shorts caused by humidity.
2oz Copper PCB
Using only carefully selected copper materials for PCB layers, 2oz Copper PCB delivers lower temperature and higher energy efficiency for overclocking.
3 Graphics Outputs
Complete with all three types of most used connectors! Packed with a D-Sub + DisplayPort + HDMI combo. Plus the HDMI port supports 4K resolution.
*Supported only with processors with integrated graphics. Please check CPU support list from each motherboard webpage.
Full Spike Protection
Some sensitive digital components on the motherboard are vulnerable to power surges, the excessive current may cause your system to malfunction immediately. ASRock Full Spike Protection includes various technologies to prevent your motherboard’s components from being damaged by these unexpected voltage spikes.
Live Update & APP Shop
ASRock Live Update & APP Shop is designed for your convenience. We provide various apps and support software for users to download. You can also easily optimize your system and keep your motherboard up to date with ASRock Live Update & APP Shop.
ASRock B550M Pro4 AMD Socket AM4 Motherboard
CPU
| CPU Socket | Socket AM4 |
| CPU Brand | AMD |
| Installed Processors (Max) | 0 (1) |
| Supported Processor Manufacturer | AMD |
| Supported Processors | 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors *Not compatible with AMD Ryzen 5 3400G and Ryzen 3 3200G. |
| 64-bit Support | Yes |
| Socket | AM4 |
Rear Panel I/O Ports
| USB Ports | 1 x USB 3.1 Type-C 1 x USB 3.1 Type-A 4 x USB 3.0 2 x USB 2.0 |
| DisplayPorts | 1 x DisplayPort 1.4 |
| HDMI Port | 1 x HDMI 2.1 |
| VGA Port | 1 x D-Sub (VGA) |
| Keyboard/Mouse Combo Port | 1 x PS/2 |
| RJ-45 Ports | 1 x RJ-45 |
| Audio Line In Ports | 1 x 3.5mm Jack |
| Audio Line Out Ports | 1 x 3.5mm Jack |
| Microphone In Port | 1 x 3.5mm Jack |
Internal I/O Connectors
| SATA Connectors | 6 x SATA III |
| USB Connectors | 2 x USB 3.0 headers (supports 4 ports) 2 x USB 2.0 headers (supports 4 ports) |
| Speaker | 1 x Speaker header |
| Front Panel Connectors | 1 x Front Panel 1 x Front Audio |
| Cooling Fan Support | 1 x CPU fan header 1 x CPU/Water Pump fan header 4 x Chassis/Water Pump fan headers |
| Serial Connectors | 1 x COM header |
| TPM Header | 1 x SPI TPM header |
| Power Connector Port | 1 x 20+4-pin ATX 1 x 4+4-pin EPS |
| Other Connectors | 2 x M.2, Socket 3, M Key (Type 2280) 1 x M.2, Socket 1, E Key (Type 2230) for WiFi module 2 x RGB LED headers 2 x Addressable LED headers |
Memory
| Memory Bus Speed | 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 MHz |
| Memory Type | DDR4 |
| Maximum RAM | 128 GB |
| Memory Slot | 4 x DIMM |
Motherboard
| Chipset Manufacturer | AMD |
| Northbridge | B550 |
| RAID Supported | Yes |
| RAID Format | RAID 0, 1, 10 |
| SATA Supported | Yes |
Expansion
| Number of PCI Express Slots | 1 x PCI Express 4.0 x16 1 x PCI Express 3.0 x16 (@ x4) 1 x PCI Express 3.0 x1 |
Graphics Device
| Integrated Graphics Supported | Yes |
Sound
| Integrated Sound | Realtek ALC1200 |
Warranty
| Warranty | 3 Years |
Network
| Integrated Network | Realtek RTL8111H |
| Network Speeds Supported | 10/100/1000 Mbps |
| Wireless LAN | No |
| Bluetooth | No |
System Requirements
| Operating Systems Supported | Microsoft Windows 10 64-bit |
System
| 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 |
| Software Included (may be trial or restricted) | Yes |
| Drivers | Yes |
| SLi/Crossfire Features | Supports AMD Quad CrossFireX and CrossFireX |
Physical
| Form Factor | MicroATX Motherboard |
| In The Box | B550M PRO4 Motherboard Quick Installation Guide Support CD I/O Shield 2 x SATA Data Cables 2 x Screws for M.2 Sockets |
| Width | 244 mm |
| Length | 244 mm |
Key Features
| USB 3.1 Support | Yes |
| Internal USB3.0 Header | Yes |
| M.2 Support | Yes |
| On-board RGB Control | ASRock RGB LED |
| Memory Speed | 4733 MHz |
| RGB Header Type | 3-Pin ARGB |
| Addressable RGB | Yes |
| Firewire | No |
| Wireless Network | No |
| Memory Channel | Dual |
| On-board Audio Type | 7.1 |
| Number of SATA Ports | 6 port(s) |
| Number of USB Ports | 8 port(s) |
| SATA III Support | Yes |
| USB 3.0 Support | Yes |
| Multi GPU Support | ATi CrossFire |
| VGA Connection | Yes |
| DVI Connection | No |
| HDMI Connection | Yes |
| DisplayPort Connection | Yes |
| Motherboard Form Factor | mATX |
| Motherboard Power Connectors | 4 + 4-Pin |
| Motherboard Chipset | AMD B550 |
| Thunderbolt | No |
| Motherboard Model | ASRock B550M Pro4 |
Item Details
| Manufacturer | ASRock |
| Manufacturer Code | 90-MXBDK0-A0UAYZ |
| Alternative Part Number | B550M PRO4 |
| EAN | 4710483931598 |
| Condition | New |
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