Either, but not both, of those are things you could add with a PCIe x1 board, though the M.2 slot would be limited to lowly x1 PCIe 3.0 speeds. It would be quite nice to have at least one USB-C socket, here in 2020, plus a second M.2 slot. Overall, then, our main reservation involves features. But that speculative and, in any case, at this price point you’re never going to get the last word in overclocking prowess. It’s possible that future AMD CPUs based on the Zen 3 architecture could provide more headroom. So, that potential limitation doesn’t count for much. Of course, few existing Ryzen CPUs actually overclock well. Odds are, you’d knock up against the limitation of that cheap four-phase power design and minimal cooling when overclocking CPUs with eight-plus cores. The immediate conclusion might therefore be why pay more? The answer is that the Ryzen 3100 is not a terribly demanding chip. But, where the X570 adds support for a second Gen 4 M.2 drive attached to the PCH chip, the B550’s secondary M.2 socket is capped at PCIe Gen 3 speeds. There are 16 lanes available for graphics and another four for storage, enabling support for a quad-lane PCIe Gen 4 M.2 SSD. You still get Gen 4 links directly into the CPU with the B550 chipset. The most immediate and obvious consequence involves storage. The X570? It’s also quad-lane, but Gen 4 spec and so double the bandwidth. For the B550, that link is composed of a quartet of Gen 3 PCI Express lanes. The key differentiator between the two involves the link between the CPU and PCH chip, the latter essentially being the motherboard chipset thanks to much of what used to be chipset functionality now residing on the CPU package. In fact, it isn’t miles away from its bigger X570 brother by most metrics. Clocking in around $80, it sits rather more comfortably with the value-orientated B550's market positioning. Give it up, therefore, for the Asrock B550M-HDV. Other rear ports - HDMI, DVI, VGA, PS2, audio, microphone Expansion slots - 1x PCIe 4.0 x16, 1x PCIe 3.0 x4

Asrock detect motherboard