Yes, the Best Buy Card can be used for online purchases at bestbuy.com. Customers have the ability to make transactions using their Best Buy Card on the website, allowing for a convenient shopping experience from the comfort of their own home. When shopping online, customers should simply select the Best Buy Card as their payment method during the checkout process. It is important for customers to ensure that their card is activated and that they have sufficient credit available. Additionally, some promotions or financing options may be available for online purchases, which can offer customers the opportunity to make the most out of their shopping experience. For any specific terms related to online use or to check on special promotional financing offers, it is recommended to visit the official Best Buy website for the most up-to-date information and detailed guidelines.