Description
The ASUS Prime B550M-A/CSM motherboard comes in micro ATX format with an AM4 socket, compatible with AMD Ryzen 3000 Series processors, and is presented in black and silver. It incorporates four DIMM DDR4-SDRAM slots that support clock speeds of 2133, 2400, 2666, 2800, 3000 and 3200, as well as unbuffered memory, with a maximum capacity of 128 GB. For storage it offers M.2 and SATA III interfaces, with four SATA III connectors available. In its internal section you will find two chassis fan connectors, one CPU fan connector, one front panel audio connector, two USB 2.0 connectors, an 8-pin EPS power connector and a 24-pin ATX power connector. Its dimensions are 244 x 51 x 244 mm (width x height x depth) and its weight is 845 g.
Specifications
Processor
- Processor manufacturer: AMD
- Processor socket: Socket AM4
- Compatible processor series: AMD Ryzen 3000 Series
Memory
- Supported memory types: DDR4-SDRAM
- Number of memory slots: 4
- Memory slots type: DIMM
- Supported memory clock speeds: 2133, 2400, 2666, 2800, 3000, 3200, 3333, 3466, 3600, 3733, 3866, 4000, 4133, 4266, 4400, 4600 MHz
- Maximum internal memory: 128 GB
- Unbuffered memory: Yes
Storage controllers
- Supported storage drive interfaces: M.2, SATA III
Graphics
- On-board graphics card: No
Internal I/O
- USB 2.0 connectors: 2
- USB 3.2 Gen 1 (3.1 Gen 1) connectors: 1
- Number of SATA III connectors: 4
- Front panel audio connector: Yes
- ATX Power connector (24-pin): Yes
- CPU fan connector: Yes
- Number of chassis fan connectors: 2
- EPS power connector (8-pin): Yes
Rear panel I/O ports
- 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
- Ethernet LAN (RJ-45) ports: 1
- PS/2 ports quantity: 1
- VGA (D-Sub) ports quantity: 1
- HDMI ports quantity: 1
- DVI-D ports quantity: 1
- Headphone outputs: 1
- Microphone in: Yes
Network
- Ethernet LAN: Yes
- Ethernet interface type: Gigabit Ethernet
- LAN controller: Realtek RTL8111H
- Wi-Fi: No
Features
- Motherboard chipset: AMD B550
- Audio chip: Realtek ALC887
- Audio output channels: 7.1 channels
- Product colour: Black, Silver
- Component for: PC
- Motherboard form factor: micro ATX
- Motherboard chipset family: AMD
- Windows operating systems supported: Windows 10 x64
Expansion slots
- PCI Express x1 (Gen 3.x) slots: 2
- PCI Express x16 (Gen 4.x) slots: 1
BIOS
- BIOS type: UEFI AMI
- BIOS memory size: 256 Mbit
- Clear CMOS jumper: Yes
Logistics data
- Harmonized System (HS) code: 84733020
Weight & dimensions
- Width: 244 mm
- Depth: 244 mm
- Height: 51 mm
Other features
- Weight: 845 g
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