Description
The ASUS PRIME B550M-K motherboard, in micro ATX format, is designed to build systems with AMD Ryzen 3000 Series processors on AM4 socket. It supports up to 128 GB of DDR4-SDRAM memory distributed across its four DIMM slots, with supported clock speeds of 2133, 2400, 2666, 2800, 3000 and 3200. For storage it offers M.2 and SATA interfaces. Internally it includes two USB 2.0 headers, one USB 3.2 Gen 1 header and a 24-pin ATX power connector. The rear panel brings together one HDMI port, one DVI-D, four USB 3.2 Gen 1 Type-A ports, two USB 3.2 Gen 2 Type-A, one PS/2 port and an Ethernet LAN RJ-45. Its dimensions are 244 x 51 x 244 mm (width x height x depth) and its weight is 785 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
Storage controllers
- Supported storage drive interfaces: M.2, SATA
Internal I/O
- USB 2.0 connectors: 2
- USB 3.2 Gen 1 (3.1 Gen 1) connectors: 1
- ATX Power connector (24-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
- HDMI ports quantity: 1
- DVI-D ports quantity: 1
Network
- Ethernet LAN: Yes
- LAN controller: Realtek RTL8111H
- Wi-Fi: No
Features
- Motherboard chipset: AMD B550
- Motherboard form factor: micro ATX
- Motherboard chipset family: AMD
- Windows operating systems supported: Windows 10
Expansion slots
- PCI Express x1 (Gen 3.x) slots: 2
- PCI Express x16 (Gen 4.x) slots: 1
- Number of M.2 (M) slots: 2
BIOS
- BIOS type: UEFI AMI
- BIOS memory size: 256 Mbit
Logistics data
- Harmonized System (HS) code: 84733020
Weight & dimensions
- Width: 244 mm
- Depth: 244 mm
- Height: 51 mm
Other features
- Weight: 785 g
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