Which Bantu migration extended the farthest south?

The Bantu expansion was the gradual and multi-stage migration that took place around 1500 BC, with the Bantu peoples from the southern parts of West Africa spreading east and south all the way to the southern parts of Africa. The Bantu spread their language and new technologies, such as iron-making and efficient farming methods, to their new settlements. By the end of the expansion, the Bantu people had become the majority population of southern Africa on the line between southern Nigeria and Kenya, with the exception of South Africa and the Namibian desert. Specifically, the Bantu migration that extended the farthest south was the third wave of migration (that started around 100 AC).

it refers to race, i am pretty sure this was a popular term in nazi germany or something.