The PRIME X370 PRO features a 6+4 phase power supply to the CPU and features large aluminium heatsinks to help keep things cool. To the right of the top headsink there is a pair of 4pin fan headers for the CPU. Beneath the rear heatsink, there is another pair of 4pin headers, of which one is dedicated for AIO pumps. Towards the rear there is the LanGuard surge protection, while just in front of the 4pin headers, there is the RGB LED header for the Ryzen Wraith RGB cooler.
The DIMMs are fairly standard and have not featured additional LED lighting or attention other than what is required for holding the memory in place, towards the edge of the motherboard there is the latest header for a front panel USB 3.1 Gen 2 port, while just in the rear you will see the M.2 socket 3 mount to facilitate high-speed storage.
The bottom right corner of most motherboards feature a Front panel connection block, a bunch of pins that connects to your chassis to enable power/reset and activity LEDs. There are headers for a thermistor, and for Clear CMOS, as well as an additional pair of 4pin fan headers, one of which has dedicated overcurrent protection as it can output 3amp for water pumps of up to 36W.
Though there is no SATA Express/NVMe U.2 ports, there are is 8 right angle SATA 6Gb/s ports, allowing for plenty of mainstream storage options.
Moving towards the rear left, there are pins for the front panel audio, COM, TPM, 2x USB 2.0 and an additional USB 3.0 header.
ASUS have included the Intel 1211AT Intel LAN, a dedicated processor for the AURA lighting, as well as the Realtek ALC 1220 codec.
A close look at the rear IO reveals a universal PS/2, 1 x DisplayPort ,1 x HDMI, 1 x LAN (RJ45) port(s), 2 x USB 3.1 (teal blue)Type-A, 1 x USB 3.0 Type-C, 5 x USB 3.0, 1 x Optical S/PDIF out, 5 x Audio jacks.
Though limited to just the PCB divide between the main part of the motherboard and the isolated audio PCB, there is a row of RGB LEDs that on powering up with start up in a default wave pattern. The LEDs do a nice job of adding ambient/custom colours.