Home / Motherboards / ASUS PRIME B550M-A WIFI II AMD B550 Socket AM4 micro ATX
ASUS · MPN 90MB19X0-M0EAY0 · ASUS PRIME B550M-A WIFI II AMD B550 Socket AM4 micro ATX
ASUS PRIME B550M-A WIFI II AMD B550 Socket AM4 micro ATX
- Motherboard Chipset
- AMD B550
- Processor Socket
- Socket AM4
- Supported Memory Types
- DDR4-SDRAM
- Maximum Internal Memory
- 128 GB
- Wi-Fi
- Yes
- Ethernet Lan
- Yes
Specifications
BIOS
| Bios Memory Size | 256 Mbit |
|---|---|
| Bios Type | UEFI AMI |
| Clear Cmos Jumper | Yes |
Expansion slots
| 1st M.2 Highest Pci Express Generation | 4.0 |
|---|---|
| 1st M.2 Largest Key Size | 22110 |
| 2nd M.2 Highest Pci Express Generation | 3.0 |
| 2nd M.2 Largest Key Size | 2280 |
| Number Of M.2 (M) Slots | 2 |
| Pci Express X16 (Gen 4.X) Slots | 1 |
| Pci Express X1 (Gen 3.X) Slots | 2 |
Features
| Audio Output Channels | 7.1 channels |
|---|---|
| Component For | PC |
| Motherboard Chipset | AMD B550 |
| Motherboard Chipset Family | AMD |
| Motherboard Form Factor | micro ATX |
| Product Colour | Multicolour |
| Windows Operating Systems Supported | Windows 10 x64, Windows 11 x64 |
Graphics
| On-Board Graphics Card | No |
|---|---|
| Parallel Processing Technology Support | Not supported |
Internal I/O
| 12v Power Connector | Yes |
|---|---|
| Atx Power Connector (24-Pin) | Yes |
| Cpu Fan Connector | Yes |
| Eps Power Connector (8-Pin) | Yes |
| Front Panel Audio Connector | Yes |
| Number Of Chassis Fan Connectors | 2 |
| Number Of Com Connectors | 1 |
| Number Of Eatx Power Connectors | 1 |
| Number Of Sata Iii Connectors | 4 |
| Rgb Led Pin Header | Yes |
| S/Pdif Out Connector | Yes |
| Tpm Connector | Yes |
| Usb 2.0 Connectors | 2 |
| Usb 3.2 Gen 1 (3.1 Gen 1) Connectors | 1 |
Logistics data
| Harmonized System (Hs) Code | 84733020 |
|---|
Memory
| Ecc сOmpatibility | ECC |
|---|---|
| Maximum Internal Memory | 128 GB |
| Memory Channels | Dual-channel |
| Memory Slots Type | DIMM |
| Number Of Memory Slots | 4 |
| Supported Memory Clock Speeds | 2133,2400,2666,2800,3000,3200,3333,3466,3600,3733,3866,4000,4133,4266,4400,4466,4600,4800,4866 MHz |
| Supported Memory Types | DDR4-SDRAM |
| Unbuffered Memory | Yes |
Network
| Bluetooth | Yes |
|---|---|
| Bluetooth Version | 5.2 |
| Ethernet Interface Type | Gigabit Ethernet |
| Ethernet Lan | Yes |
| Lan Controller | Realtek RTL8111H |
| Top Wi-Fi Standard | Wi-Fi 6 (802.11ax) |
| Wake-On-Lan Ready | Yes |
| Wi-Fi | Yes |
| Wi-Fi Standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
Other features
| Packaging Content | 2 x SATA 6Gb/s cables 1 x ASUS Wi-Fi moving antennas 1 x I/O Shield 1 x M.2 SSD screw package 1 x Support DVD 1 x User manual |
|---|---|
| Weight | 845 g |
Packaging content
| Cables Included | SATA |
|---|---|
| Drivers Included | Yes |
Processor
| Compatible Processor Series | AMD Ryzen 3000 Series, AMD Ryzen 5000 Series |
|---|---|
| Processor Manufacturer | AMD |
| Processor Socket | Socket AM4 |
| Supported Processor Sockets | Socket AM4 |
Rear panel I/O ports
| Dvi-D Ports Quantity | 1 |
|---|---|
| Ethernet Lan (Rj-45) Ports | 1 |
| Hdmi Ports Quantity | 1 |
| Hdmi Version | 2.1 |
| Headphone Outputs | 1 |
| Microphone In | Yes |
| Ps/2 Ports Quantity | 1 |
| Usb 3.2 Gen 1 (3.1 Gen 1) Type-A Ports Quantity | 4 |
| Usb 3.2 Gen 2 (3.1 Gen 2) Type-A Ports Quantity | 2 |
| Usb Connector Type | USB Type-A |
| Vga (D-Sub) Ports Quantity | 1 |
| Wifi-Ap Antenna Jack | 1 |
Storage controllers
| Number Of Storage Drives Supported | 6 |
|---|---|
| Raid Levels | 0, 1, 10 |
| Raid Support | Yes |
| Supported Storage Drive Interfaces | M.2, PCI Express 3.0, PCI Express 4.0, SATA III |
| Supported Storage Drive Types | HDD & SSD |
Weight & dimensions
| Depth | 244 mm |
|---|---|
| Height | 67 mm |
| Width | 244 mm |
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Sources
Product identity, images and specifications: Icecat. Amazon ASIN and offer (when shown): Amazon Creators API match NO_MATCH · ASIN B0GC53GQ8G. Google Shopping is used only as supporting market context and is not required for this page.