Evandro Goncalves/Andre Loyola, Brazil (4) defeated Karell Pina/Daisel Quesada, Cuba (28) 2-0 (21-17, 21-19).
It was the first FIVB World Tour meeting between the two teams.
In Pool D, Brazil is 2-0 and Cuba is 0-2. Also in Pool D, Mexico's Lombardo Ontiveros/Juan Virgen is 1-0 and Maarten Van Garderen/Christiaan Varenhorst of Netherlands is 0-1.
Up next for Brazil is Mexico while Cuba plays the Netherlands. Both matches are Tuesday, 1 August.