Asus PRIME B550M-K Manual page 10

1.2.1 Layout contents
1. CPU socket
The motherboard comes with an AMD Socket AM4 designed for 3
Processors.
For more details, refer to Central Processing Unit (CPU).
2. DDR4 DIMM slots
The motherboard comes with Dual Inline Memory Modules (DIMM) slots designed for DDR4
(Double Data Rate 4) memory modules.
For more details, refer to System memory.
3. Expansion slots
This motherboard supports one PCIe x16 graphics card and two PCIe 3.0 x1 network cards,
SCSI cards and other cards that comply with the PCI Express specification.
4. Fan headers
The Fan headers allow you to connect fans to cool the system.
5. Power connectors
These Power connectors allow you to connect your motherboard to a power supply. The
power supply plugs are designed to fit in only one orientation. Find the proper orientation and
push down firmly until the power supply plugs are fully inserted.
Ensure to connect the 8-pin power plug.
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6. M.2 Slots (Key M)
The M.2 slots allow you to install M.2 devices such as M.2 SSD modules.
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7. SATA 6Gb/s ports
The SATA 6Gb/s ports allow you to connect SATA devices such as optical disc drives and
hard disk drives via a SATA cable.
1-2
For a fully configured system, we recommend that you use a power supply unit
(PSU) that complies with ATX 12V Specification 2.0 (or later version) and provides a
minimum power of 350W.
We recommend that you use a PSU with a higher power output when configuring a
system with more power-consuming devices. The system may become unstable or
may not boot up if the power is inadequate.
If you are uncertain about the minimum power supply requirement for your system, we
recommend you to refer to online resources for Power Supply Wattage Calculator.
For 3 Gen AMD Ryzen™ Processors，M.2_1 slot (Key M), type
rd
2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes).
For AMD B550 Chipset, M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0
x4 & SATA modes).
Gen AMD Ryzen™
rd
FAN PWM
FAN IN
FAN PWR
Chapter 1: Product introduction
GND