No, airdatalink does not provide an unlimited‑data eSIM specifically for the United States of America. The provider offers only fixed data plans that contain a set data allowance. For example, a 50 GB eSIM is available for 15 days at $28.97 USD or for 30 days at $30.26 USD; another 50 GB option with a 30‑day validity is priced at $32.33 USD. These plans are fixed data plans, meaning the data amount is a hard limit that must be consumed within the specified validity period. Choosing a fixed data plan can be more cost effective for travelers who do not require continuous data usage over an extended period, whereas heavy data users might consider more comprehensive options or purchasing additional data credits if available.