
I have a slightly older Roku that recently complained about having to restart infrequently used apps due to lack of memory ran out, but what is the sd card will fix it. I studied it and found that this model is the right size for this streaming box. Roku didn't seem to work with larger SD cards.

Kingston microSDXC 64GB Class 10, V10, A1, UHS-I U1, R 100MB/s Memory Card, SD Adapter, 1 pc, Black
45 Review

SmartBuy Classic Series microSDHC 32 GB Class 10, R/W 25/30 MB/s, SD adapter
41 Review

Memory card Samsung microSDXC 256 GB Class 10, V30, A2, UHS-I U3, R 130 MB/s, adapter to SD
50 Review

Silicon Power Elite 64GB microSDXC 2-Pack Memory Card with Adapter for Nintendo Switch and Wyze Cam
57 Review