2TB is an NVMe. You can even put it in your wallet, or better in your backpack. A copy also to an online back up service. Leave a third copy behind, to be destr

2TB is an NVMe. You can even put it in your wallet, or better in your backpack. A copy also to an online back up service. Leave a third copy behind, to be destroyed once confirmed on the other side. If you have someone in destination, you can send the data a priori. There are rugged SSDs, but they are expensive and may not survive luggage handling. On airport, there is a chance that you are asked about the encryption password, especially in US.