Listings show a 32GB capacity primarily labeled as microSDHC; some listings also reference microSDXC variants alongside microSDHC.
They are described for 4K Ultra HD (3840 x 2160) and Full HD (1920 x 1080) video and carry speed/video-class ratings such as V30, UHS Speed Class 3 (U3), and Class 10.
Cards are described as waterproof, shockproof, x‑ray proof, and temperature proof. The operating temperature range shown is -13 to 185°F.
Listings describe use in smartphones, tablets, cameras and other devices. Many listings also include a microSD-to-SD adapter for use in SD-compatible slots.
Some listings reference Application Performance Class 1 (A1). One detailed description lists A1 performance values of 1500 read IOPS and 500 write IOPS.
Descriptions emphasize faster offloads with read speeds up to 100 MB/s or up to 130 MB/s. One listing gives an example claim of transferring up to 1,200 photos in less than a minute.
