EXCERIA PLUS CL10 UHS-I U3 V30 4K A1 100/W90 (G2) is a high-performance KIOXIA EXCERIA PLUS G2 microSD memory card. It is designed for smartphones, action cameras, and drones, and is suitable for recording 4K video. The parenthetical (G2) refers to the card's second-generation release. 

Capacity: Available capacities range from 64GB to 2TB.
Read speed: A maximum read speed of 100 MB/s.
Write speed: A maximum write speed of 90 MB/s for the 256GB, 512GB, 1TB, and 2TB models. The 64GB and 128GB versions have a maximum write speed of 65 MB/s.
Card class: It meets UHS Speed Class 3 (U3) and Video Speed Class 30 (V30), which are necessary for reliable 4K video recording.
App performance: The A1 rating means it can be used to store and run Android applications directly from the card.
Durability: The card is built to be waterproof, shock-proof, and X-ray proof.
Technology: It uses KIOXIA's proprietary BiCS FLASH™ 3D flash memory technology.