
The 8 microSD and 6+2 microSD/SDCard versions securely hold any cards I insert. The lanyard slot is a bit tight but I managed to get it through both holders. I haven't tried a writable surface as any media that I haven't already loaded into the device tends to spin rather quickly.

Smartphone Xiaomi Mi 8 Lite 6/128 GB, midnight black
70 Review

32GB High-Speed Micro SDHC Card - Class 10 UHS-I Compatible Memory Card for SD Devices
63 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