ASRock B550M Pro4 AMD AM4 Socket Motherboard
Micro-ATX
4x DDR4 Slots
2x M.2 Sockets
GbE LAN

ASROCK

ASRock B550M Pro4 AM4 Micro-ATX DDR4 Motherboard

SKU: TF-MBASR-B550MPRO4
Barcode: 4710483931598

£90.99 Inc. VAT

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ASRock B550M Pro4 AM4 Micro-ATX DDR4 Motherboard

£90.99 Inc. VAT

£90.99 Inc. VAT

The ASRock B550M PRO4 is a Micro-ATX motherboard for AM4 processors, with DDR4 memory support. The specifications below distinguish storage sockets, expansion slots and rear connections.

Specifications

Model & Compatibility

Model ASRock B550M PRO4
Chipset AMD B550
CPU socket AM4
Supported processors Supports AMD AM4 Socket Ryzen 3000, 3000 G-Series, 4000 G-Series, 5000 and 5000 G-Series Desktop Processors
Form factor / dimensions Micro ATX Form Factor: 9.6-in x 9.6-in, 24.4 cm x 24.4 cm

Memory

Memory slots 4 × DDR4 DIMM; dual channel
Maximum capacity 128 GB
Memory data rate Up to DDR4-4733 (OC); depends on the CPU, memory modules, DIMM configuration and BIOS. Check the manufacturer's memory QVL.
Memory profiles Intel XMP

Expansion & Storage

Expansion 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)
1 x PCI Express 3.0 x1 Slot
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 connections 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 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)
1 x 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
NVMe SSD is not supported with AMD Athlon 3000G Processors

Network & Audio

Ethernet PCIE x1 Gigabit LAN 10/100/1000 Mb/s
Realtek RTL8111H
Wi-Fi / Bluetooth No onboard wireless module listed by the manufacturer. Any optional Wi-Fi module, antennas and Bluetooth functionality require separate compatible hardware.
Audio 7.1 CH HD Audio with Content Protection (Realtek ALC1220/ALC1200 Audio Codec)
Nahimic Audio

Rear Connections

Rear I/O Antenna Bracket
1 x PS/2 Mouse/Keyboard Port
1 x D-Sub Port
1 x HDMI Port
1 x DisplayPort 1.4
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 (ASMedia ASM1074 hub) (Supports ESD Protection)
2 x USB 2.0 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

Internal Connections

Internal USB headers 2 x USB 2.0 Headers (Support 4 USB 2.0 ports) (Supports ESD Protection)
2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports) (Supports ESD Protection)
Power connectors 1 x 24 pin ATX Power Connector
1 x 8 pin 12V Power Connector
Fan / pump headers 1 x CPU Fan Connector (4-pin)
1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)
4 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)
Lighting headers 1 x Power LED and Speaker Header
2 x RGB LED Headers
2 x Addressable LED Headers

Compatibility Notes

CPU and BIOS Check the manufacturer's CPU support list and the minimum BIOS version for your exact processor before ordering. A BIOS update may be required.
Display outputs Motherboard display outputs require a compatible processor with integrated graphics. Their availability and maximum resolution depend on the processor.
Memory and expansion DDR4 and DDR5 are not interchangeable. Overclocked memory speeds are not guaranteed. PCIe lane allocation and storage availability can depend on the CPU and installed devices; check the board manual.
Manufacturer restrictions M2_2 and SATA3_5_6 share lanes. If either one of them is in use, the other one will be disabled.
NVMe SSD is not supported with AMD Athlon 3000G Processors

Package & Identification

Manufacturer-listed accessories I/O Shield
2 x SATA Data Cables
2 x Screws for M.2 Sockets
GTIN / EAN 4710483931598