User’s Manual

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PRIME B550M-K specifications summary
CPU
AMD Socket AM4 for 3
rd
Gen AMD Ryzen™ Processors*
*Refer to www.asus.com for CPU support list.
Chipset AMD B550 Chipset
Memory
3
rd
Gen AMD Ryzen™ Processors
4 x DIMM, Max. 128GB, DDR4 4400(O.C.)/4000(O.C.)/3866(O.C.)/3600
(O.C.)/3466(O.C.)/3200/3000/2800/2666/2400/2133 MHz, Un-buffered
Memory*
Dual Channel Memory Architecture
*ECC Memory (ECC mode) support varies by CPU.
*Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Graphics
1 x D-Sub
1 x DVI-D
1 x HDMI
TM
2.1(4K@60HZ)
Expansion Slots
3
rd
Gen AMD Ryzen™ Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
AMD B550 Chipset
2 x PCIe 3.0 x1 slots
Storage
Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports
3
rd
Gen AMD Ryzen™ Processors
M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 &
SATA modes)
AMD B550 Chipset
M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 3.0 x4 & SATA
modes)
4 x SATA 6Gb/s ports
Support Raid 0, 1, 10
Ethernet
1 x Realtek RTL8111H 1Gb Ethernet
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Package contents
Check your motherboard package for the following items.
Motherboard
1 x PRIME B550M-K motherboard
Cables
2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O Shield
1 x M.2 SSD screw package
Application DVD
1 x Support DVD
Documentation
1 x User manual
If any of the above items is damaged or missing, contact your retailer.