Samsung Evo Plus 1 TB

Don't have any in it!

I haven't yet had to extend the memory using a microSD card, so unfortunately I can't answer your question :-( - sorry

The official Samsung response is as follows:
Availability of the 1TB storage option may vary by country, region or mobile carrier and actual storage availability may vary depending on pre-installed software. Memory and storage options vary by model: Galaxy Tab S9 Ultra - 16GB of memory and 1TB of storage, 12GB of memory and 512GB of storage, 12GB of memory and 256GB of storage; Galaxy Tab S9+ - 12GB of memory and 512GB of storage, 12GB of memory and 256GB of storage; Galaxy Tab S9 - 12GB of memory and 256GB of storage, 8GB of memory and 128GB of storage