If you want microSDs, which can fit in the N810's slot using a microSD->miniSD adapter, those are not what you want. Those are full-size SDs, such as fit in the N800, but are too big to fit in the N810.

A miniSD->SD adapter is available, from craves1 (search), which has one end that plugs into the card slot, a ribbon cable, and a full-size SD socket on the other end which goes under the battery door (which must be oversized to fit; you can either buy a custom metal one with the adapter, or modify the plastic one that comes with the Mugen 3600 mAh extended battery if you have that). If you have/get one of those adapters, then those 32GB SDs will work fine.