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ASRock B550 Pro4

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ASRock B550 Pro4
Towards:gaming
Form Factor:ATX
Socket: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
Power connector:24-pin
Processor power:8+4-pin
Supports Ryzen 3000 and 4000-series processors. Ultra-fast PCIe 4.0 bus. Overclocking RAM to 4733 MHz. Two M.2 slots for SSD and one M.2 for Wi-Fi. USB 3.2 Gen 2 ports.

Mid-range ATX gaming motherboard based on 2020 AMD B550 chipset. Equipped with AM4 processor socket, supports ASRock Polychrome Sync LED lighting control technology. Differs in affordable cost and the presence of a full set of up-to-date system and peripheral interfaces, including PCIe Gen 4.0. Guaranteed compatible with 4/6/8/12/16-core Ryzen 3000 (Matisse/Matisse Refresh, 7nm) and 4/6/8-core Ryzen 4000 APUs (Renoir, 7nm).

The manufacturer is positioned as a product of the middle price category, designed to create multi-purpose home and balanced gaming configurations. The ASRock B550 Pro4 motherboard is equipped with a digital 8-phase (6+2) CPU VRM power supply subsystem with a large aluminium heatsink. Thanks to the PCIe x16 connector reinforced with a steel plate, it works without problems with any powerful discrete video cards (including heavy and large-sized flagship models).

Supports up to 4 DDR4 DIMMs in dual channel mode for an impressive maximum storage capacity of up to 128GB. The installation of two M.2 SSD drives (one with PCIe Gen 4.0) and a Wi-Fi module with a Key E connector is provided. Fast traffic processing in cable networks is provided by the Realtek RTL8111H GbE LAN controller. To output images from Ryzen hybrid APUs, an analogue VGA D-Sub port and digital HDMI 2.1 are provided.

All specifications
Specifications B550 Pro4
Main
Featuresgaming
SocketAM4
Form factorATX
Power phases8
VRM heatsink
LED lighting
Lighting syncASRock Polychrome Sync
Size (HxW)305x244 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/PCIe 2x, 1xPCIe 4x
M.2 SSD cooling
Integrated RAID controller / RAID 0, RAID 1, RAID 10 /
Expansion slots
1x PCIe slots3 pcs
PCIe 16x slots2 pcs
PCIe modes16x/4x
PCIe support4.0
CrossFire (AMD)
Steel PCIe connectors / PCI-E 4.0 /
Internal connections
USB-A 2.02 pcs
USB-A 5Gbps1 pcs
Video outputs
D-Sub output (VGA)
HDMI output
HDMI versionv2.1
Integrated audio
AudiochipRealtek ALC1200
Sound (channels)7.1
Network interfaces
LAN (RJ-45)1 Gbps
LAN ports1
LAN controllerRealtek RTL8111H
External connections
USB-A 5Gbps4 pcs
USB-A 10Gbps1 pcs
USB-C 10Gbps1 pcs
PS/21
Power connectors
Main power socket24-pin
CPU power8+4-pin
Fan power connectors6
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 2026 - new arrivals, bestsellers, and the most relevant models ASRock.
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Asrock B550 Pro4 ATX motherboard - AMD B550 Socket AM4

Clove-technology.com
Delivery: USA
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$135.00

Asrock B550 Pro4 AMD AM4 ATX DDR4SDRAM Motherboard

eBay.com
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$154.62

ASRock B550 Pro4 AMD AM4 DDR4 M2 HDMI ATX MotherboardUSA OEM RETAIL

eBay.com
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$169.99

ASRock B550 PRO4 AM4 ATX AMD Motherboard

BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU AMD B550 Supports 3rd Gen AMD AM4 Ryzen / future AMD Ryzen Processors 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... more, 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
Newegg.com
Delivery: in USA
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$188.09
Must-have for 2 GPUs!
1 June 2021 
Must-have for 2 GPUs!
The main and decisive advantage for my case is the increased distance between the PCI ports, which is 2 cm more compared to all other motherboards, ideal for cooling two graphics cards. On regular motherboards, the top card had its fan running at 100% because it was absorbing hot air from the bottom one, even 2*140 intake fans didn't help, but now I have forgotten about this problem. BIG THANKS to ASRock engineers, you guys did a great job, awesome feature!
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ASRock B550 Pro4 is one of the junior full-size Full-ATX motherboards based on the latest AMD B550 chipset. By the way, she also has a Micro-ATX sister B550M Pro4. With a moderate price and passive cooling, the B550 offers support for a high-speed PCIe 4.0 interface (only one x16 slot for a graphics card and an M.2 x4 slot for an SSD). Officially, the B550 is only compatible with Ryzen 3000 and 4000-series processors, but according to reviews on Internet forums, at least on early BIOS firmware, Ryzen 2000-series still work.

snow white

The ASRock B550 Pro4 power subsystem is made eight-phase: six mosfets feed the processor cores and are covered with a white-coloured cooling radiator, and two more are responsible for the RAM controller and the integrated graphics accelerator, if any, but already lack a radiator. But the same white radiators are installed on top of the chipset and the top M.2 slot, which is just the same fast fourth generation PCIe (up to 64 Gbps).

There are not many slots

Only the upper PCIe 4.0 x16 graphics card slot is reinforced with metal in the ASRock B550 Pro4. The lower one only supports AMD Radeon video cards in PCIe 3.0 x4 mode, which allows you to create CrossFire bundles, but not SLI or NVLink. A second M.2 slot is also available, supporting a PCIe 3.0 x2 (16 Gbps) or SATA3 (6 Gbps) SSD, and even a third M.2 Key-E for Wi-Fi adapter. There are four connectors for RAM — with a frequency of up to 4733 MHz.

Internet and sound

On the rear interface panel of the ASRock B550 Pro4, there were two video outputs (digital HDMI 2.1 with HDR support and analogue VGA), three 3.5 mm MiniJacks from the Realtek ALC1200 audio controller, a Realtek RTL8111H gigabit Ethernet socket, and six USB ports, two of which (Type -A and Type-C) fast version 3.2 Gen 2 (10 Gbps). The amount of ASrock Polychrome RGB lighting is minimal — this is the prerogative of older models, like the B550 Steel Legend.