It's great to hear from you, Budds. We see that you are interested in pairing your Galaxy S21 with this charger. The answer to your question is, yes. The Samsung USB-C Cable lets you charge your USB-C device as well as sync your photos, music, and data to your smartphone or laptop at blazing charge and transfer speeds. In addition, the cable also supports up to 3 Amps of power output for charging USB-C devices. If you have any further questions, please do not hesitate to reach out to us at Support. -Kelvin