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ROG STRIX B550-A GAMING specifications summary
CPU
AMD Socket AM4 for 3
rd
Gen AMD Ryzen™ Processors*
* Refer to www.asus.com for the AMD
®
CPU support list.
Chipset
AMD B550 Chipset
Memory
3
rd
Gen AMD Ryzen™ Processors
4 x DIMM, Max. 128GB, 4600(O.C)/4400(O.C)/4266(O.C)/4133(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
OptiMem II
* ECC memory (ECC mode) support varies by CPU.
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Graphics
1 x DisplayPort 1.2*
1 x HDMI
TM
2.1 (4K@60HZ)
* Graphics specifications may vary between CPU types.
Expansion Slots
3
rd
Gen AMD Ryzen™ Processors
1 x PCIe 4.0 x16 SafeSlot (supports x16 mode)
AMD B550 Chipset
1 x PCIe 3.0 x16 slot (supports x4 mode)*
3 x PCIe 3.0 x1 slots
* PCIEX16_2 shares bandwidth with PCIE x1_1, PCIE x1_2, and PCIE x1_3.
Multi-GPU Support
Supports AMD 2-Way CrossFireX™ Technology
Storage
Total supports 2 x M.2 slots and 6 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 2242/2260/2280/22110
(supports PCIe 3.0 x4 & SATA modes)*
6 x SATA 6Gb/s ports
Supports RAID 0,1,10
* When M.2_2 slot is populated , SATA6G_5/6 ports will be disabled.
Ethernet
1 x Intel
®
I225-V 2.5Gb Ethernet
ASUS LANGuard
USB
Rear USB (Total 8 ports)
2 x USB 3.2 Gen 2 ports (1 x Type-A + 1 x Type-C
®
)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
2 x USB 2.0 ports (2 x Type-A)
Front USB (Total 6 ports)
1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
(continued on the next page)
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