The Asrock b550m steel legend seems like a better option than a gigabyte b550m aorus Pro-P(which has a better VRM and Ethernet than a gigabyte b550m aorus Pro)
The second m.2 works on Gen3-X2 so that should work as Pcie Gen2 x4 Right ?
How is the ASS, who handles ass for Asrock.
Narrowed down to three choices- IN order of preference (Should be able to handle a 5900X non-OC comfortably) - Will change the board in future if ever a better micro-atx arrives (B550,X570,X570s)

Asrock B550M Steel Legend Motherboard
ASRock B550M Steel Legend | AM4 Socket | M-ATX Form Factor Motherboard | 10 Phase VRM | DDR4 4533 | Dragon 2.5G Lan - Nahimic Audio - ALC1220 Codec...

Asus TUF Gaming B550M-Plus (Wi-Fi) Motherboard
TUF Gaming B550M-PLUS WiFi - M-ATX - Motherboard - PCIe 4.0, dual M.2, 10 Phase VRM, 2.5 Gb Ethernet, HDMI, DisplayPort, SATA 6 Gbps, USB 3.2 Gen 2 Type-A and Type-C, WiFi 6...

Gigabyte B550M Aorus Pro-P Motherboard
Gigabyte B550M Aorus PRO-P | AM4 | M-ATX Motherboard - Realtek 8125 2.5G Ethernet - 1 x USB 3.2 Gen2 Type-A Port - 4 x USB 3.2 Gen 1 Ports - ALC 1200 Audio Codec...
Love this board (On of the best) but for this Second pcie x4 slot issue

MSI MAG B550M MORTAR WIFI
MSI - MAG - B550M Mortar WiFi - M-ATX - AM4 - Gaming Motherboard - Build On Micro -ATX Form Factor And Brings in Enhanced Audio, Advanced Networking Capabilities, RGB Mystic Lighting turning any gaming experience into a immersive one...
I am ready to expand the budget to 30k but it has to be micro atx with the required Slots.is it necessay to build m-atx system ,B550 Aourus master could do the trick but that it is ATX board
B550M AORUS ELITE
B550M AORUS PRO AX
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