African-American vs Afro-American

African-American and Afro-American both are nouns.

Word	Noun	Adjective	Verb	Adverb
African-American	Yes	Yes	No	No
Afro-American	Yes	Yes	No	No

As adjectives, African-American and Afro-American are synonyms defined as:

African-American and Afro-American: pertaining to or characteristic of Americans of African ancestry

African-American (noun)	Afro-American (noun)
a person with African ancestry, "Negro" and "Negroid" are archaic and pejorative today	an American whose ancestors were born in Africa

African-American (adjective)	Afro-American (adjective)
pertaining to or characteristic of Americans of African ancestry	pertaining to or characteristic of Americans of African ancestry