MSI B450i Gaming PLUS AC review - Product Showcase

 

This motherboard will get you four SATA 6 Gb/s storage ports (angled upwards). There are USB 3.0/3.1 ports available through internal motherboard connectors, including USB 3.1 Gen 2, the fastest with a 10 Gbps connection. 

Here we can see the four DIMM slots which offer support for dual-channel DDR4 memory up to an advertised 3466 MHz (with Zen+). You can install a maximum of 32 GB in total. Given the nature of Ryzen and its CCX interconnect tied to the memory speed, we do recommend high-frequency memory. Please make sure you get a something 2933~3200 MHz kit if you are a gamer (which works just fine and is the current sweet spot)

At the backside you can find the 8cm type 2242/2260/2280 m.2. slot. Delivering up to 32 Gb/s data transfer speed per connector. So it supports PCIe 3.0 x4 (Ryzen series processors). No thermal shield though, and considering the location (no airflow) I would recommend you to opt for an M2 SSD that doesn't run hot on its controller. 

Man, that stock Wraith cooler looks so much bigger now on a Mimi ITX motherboard :~)