SAMSUNG T9 microSDXC 128GB 200MB/s U3 V30 A2 MB-MH128T

Samsung T9 microSDXC 128GB

This Samsung T9 microSDXC card provides 128GB of storage for devices with a microSD slot. It targets mobile gamers, drone operators and content creators who need fast read speeds for loading games or capturing 4K video. The UHS-I U3, V30 and A2 ratings confirm suitability for sustained video recording and quick app launches. An SD adapter is included for use in full-size card readers.

Thermals noise and power

As a solid-state memory card with no moving parts, the T9 operates silently and generates minimal heat during typical read or write tasks. Power draw is limited to the host device's microSD interface, so it does not affect battery life in cameras, drones or handheld consoles. No active cooling or special thermal management is required for normal operation.

U3 V30 A2 speed ratings

The U3 and V30 markings guarantee a minimum sequential write speed of 30 MB/s, which is the decisive factor for reliable 4K video capture without dropped frames. The A2 rating ensures higher random IOPS for faster application loading on Android devices or gaming handhelds. Maximum read speed reaches 200 MB/s, while write speed peaks at 130 MB/s. Buyers who need sustained write throughput above 30 MB/s for higher-bitrate codecs should verify their device supports a faster bus standard.