Cheapest price on this newer chipset. Compatible with current Ryzen 3000 series and will be compatible with the upcoming 4000 series. One thing to note this model of Tomahawk does not have onboard WiFi.

AMD B550
Supports AM4 socket 3rd Gen AMD Ryzen processors, and future AMD Ryzen processors with BIOS update
Supports DDR4 3200/ 3066/ 3000/ 2933/ 2800/ 2667/ 2400/ 2133/ 1866 MHz by JEDEC
Supports DDR4 4866+/ 4800/ 4733/ 4600/ 4533/ 4400+/ 4266/ 4133/ 4000/ 3866/ 3733/ 3600/ 3466/ 3200/ 3066/ 3000/ 2933/ 2800/ 2667 MHz by A-XMP OC MODE