ASUS PRIME B550M-A WIFI II, AMD B550, AM4, Micro ATX, 90MB19X0-M0EAY0

Model:  PRIME B550M-A WIFI II

CPU:   AMD Ryzen™ 5000 Series/ 5000 G-Series/ 4000 G-Series/ 3000 Series Desktop Processors

*Refer to www.asus.com for CPU support list.

Chipset: B550

Memory:  4 x DIMM, Max. 128GB, DDR4 4866(OC)/4800(OC)/4600(OC)/4466(OC)/4400(OC)/4333(OC)/4266(OC)/4200(OC)/4133(OC)/4000(OC)/3866(OC)/3733(OC)/3600(OC)/3466(OC)/3400(OC)/3333(OC)/3200/3000/2933/2800/2666/2400/2133, 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), and memory frequency support depends on the CPU types.

Graphics: 1 x D-Sub port, 1 x DVI-D port, 1 x HDMI® port * Graphics specifications may vary between CPU types.* Supports 4K@60Hz as specified in HDMI 2.1.

Expansion Slots:  AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors1 x PCIe 4.0 x16 slot (supports x16 mode) AMD Ryzen™ 5000 G-Series/ 4000 G-Series Desktop Processors

1 x PCIe 3.0 x16 slot (supports x16 mode) AMD B550 Chipset 2 x PCIe 3.0 x1 slots

Storage:  Supports 2 x M.2 slots and 4 x SATA 6Gb/s ports AMD Ryzen™ 5000 Series/ 3000 Series Desktop Processors

M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 & SATA modes)

AMD Ryzen™ 4000 G-Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 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 1Gb Ethernet ASUS LANGuard Wireless & Bluetooth 2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) + BT5.2 Wi-Fi 6 2×2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax)

Supports 2.4/5GHz frequency band

Bluetooth: v5.2

USB: Rear USB:Total 6 ports 2 x USB 3.2 Gen 2 ports (2 x Type-A) 4 x USB 3.2 Gen 1 ports (4 x Type-A)