Unirex Corporation MSW325M 4-in-1 USB Micro USB Reader SD Adapter 32GB

4-in-1 reader with 32GB storage

The Unirex MSW325M combines a USB and Micro USB reader with an SD adapter and a 32GB microSD card in one package. It targets photographers, students and mobile professionals who need to move files between phones, cameras and laptops without carrying separate adapters. The kit covers the most common card formats and connection types in a single compact device.

Plug-and-play across USB, Micro USB and SD slots

The reader accepts both microSD and full-size SD cards through the included adapter, while its dual USB and Micro USB connectors plug directly into computers, smartphones or tablets. No driver installation is required on most operating systems, so data transfer begins immediately. The design removes the need for a dedicated card slot on the host device and frees up bag space by replacing multiple dongles.

Sustained transfers limited by UHS-1 card speeds

Under continuous read or write loads the bottleneck is the UHS-1 microSD card rather than the reader interface itself. Sequential throughput will plateau at the card’s rated ceiling, and thermal throttling is not a factor for this form factor. Users moving large video batches should expect speeds consistent with standard UHS-1 performance rather than higher-tier bus rates.