https://www.techpowerup.com/263868/asrock-b550am-gaming-motherboard-pictured-up-close Here are some of the first close-ups of the ASRock B550AM Gaming motherboard, which made its
first appearance back in October 2019. The B550A is a rebadged B450 low-power "Promontory" chipset. Boards based on the chipset are guaranteed to support all 3rd generation Ryzen desktop processors out of the box. The B550AM Gaming draws power from a combination of 24-pin ATX and 8-pin EPS power connectors, conditioning it for the AM4 SoC with an 8+2 phase VRM.
The AM4 socket is wired to four DDR4 DIMM slots supporting dual-channel DDR4 memory; the board's sole PCI-Express 4.0 x16, and an M.2-22110 slot that has PCIe 3.0 x4 and SATA 6 Gbps wiring. The only other expansion slot is a PCI-Express x4 wired to the B550A chipset, which is likely gen 2.0. Other storage connectivity includes six SATA 6 Gbps ports. USB connectivity includes two USB 3.2 gen 2 ports (from which one is type-C), and six USB 3.2 gen 1 ports (from which two are by headers). Network connectivity includes WLAN (likely 802.11ac), and a 1 GbE wired interface. The 6-channel HD audio appears to be driven by a premium Realtek ALC1220-class CODEC. There are two 4-pin RGB and one 3-pin ARGB headers. The company didn't reveal pricing, or whether this board is even available in the retail channel, given that back in October we heard that the B550A was an OEM exclusive.
Personally I believe this motherboard will not make it into any retail channel. I expect this to be used in OEM low to mid priced AMD system builds.