MB AM4 Asus PRIME B550-PLUS ATX

// CPU
AMD AM4 Socket for AMD Ryzen™ 5000 Series/ 4000 G-Series/ 3000 Series Desktop Processors Processors *

Chipset
AMD B550

Memory
4 x DIMM, Max. 128GB, DDR4 4600(O.C)/4400(O.C)/4266(O.C.)/4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3333(O.C.)/3200/3000/2800/2666/2400/2133 MHz Un-buffered Memory *
Dual Channel Memory Architecture

Graphic
1 x DisplayPort 1.2 *
1 x HDMI 2.1(4K@60HZ)

Multi-GPU Support
Supports AMD 2-Way CrossFireX Technology

Expansion Slots
1 x PCIe 4.0 x16 (x16 mode)
1 x PCIe 3.0 x16 (x4 mode)
3 x PCIe 3.0 x1 *1

Storage
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support(SATA & PCIe 4.0 x4 mode)
1 x M.2 Socket 3, with M key, type 2242/2260/2280/22110 storage devices support (SATA & PCIE 3.0 x 4 mode)*2
6 x SATA 6Gb/s port(s), *2
Support Raid 0, 1, 10

LAN
Realtek® RTL8111H

Audio
Realtek ALC887 7.1-Channel High Definition Audio CODEC

USB Ports
Rear USB Port ( Total 8 )
2 x USB 3.2 Gen 2 port(s)(1 x Type-A +1 x USB Type-C®)
4 x USB 3.2 Gen 1 port(s)(4 x Type-A)
2 x USB 2.0 port(s)(2 x Type-A)
Front USB Port ( Total 6 )
2 x USB 3.2 Gen 1 port(s)(2 x Type-A)
4 x USB 2.0 port(s)(4 x Type-A)

https://www.asus.com/Motherboards-Components/Motherboards/PRIME/PRIME-B550-PLUS/