Superalink does not provide any unlimited data eSIM for Luxembourg. The available options are fixed‑data plans that offer a daily allowance of 5 GB, valid for 7, 10, 15, 20, or 30 days. For instance, the Global 108 Countries – 5GB/day plan is priced at $42.01 USD for a 7‑day validity, $61.11 USD for 10 days, $83.07 USD for 15 days, $123.17 USD for 20 days, and $175.68 USD for 30 days, all with 5G coverage in Luxembourg and 107 additional countries. Choosing a fixed data plan can be more cost‑effective unless a traveler requires an extremely heavy data usage that would exceed the daily allowance.