A: The UHS-I specification defines a theoretical maximum transfer speed of 104 MB/s, which is why most USB 3.0 card reader manufacturers use this figure as a performance reference. However, actual transfer speeds depend largely on the performance of the memory card itself. Before mass production, we conducted validation tests using several well-known branded memory cards and compared the results against the speeds claimed by the card manufacturers: SanDisk Extreme microSD Card – Up to 190 MB/s read speed SanDisk USB Card Reader – Up to 170 MB/s transfer speed Samsung USB Card Reader – Up to 200 MB/s transfer speed During our real-world testing with the same UHS-I cards, the MSLFORCE card reader consistently achieved 94–98 MB/s read speeds, which is very close to the maximum bandwidth allowed by the UHS-I standard. This demonstrates that the reader is not the performance bottleneck; rather, the actual speed is constrained by the UHS-I interface limit and the memory card's own specifications.

A: If you experience slower-than-expected transfer speeds, please check the following: 1.Make sure the card reader is connected to a USB 3.0 port. 2.Verify that the USB port on your computer is functioning properly. 3.For USB-C laptops and tablets, check the USB-C specification. Not all USB-C ports support high-speed data transfer. For best performance, connect to a USB-C port that supports USB 3.0, USB 3.1, USB 3.2, or higher. USB-C ports limited to USB 2.0 speeds will significantly reduce transfer rates. 4.Use a high-performance memory card.such as well-known brand memory card, Some OEM or unbranded memory cards may not deliver the transfer speeds claimed on their labels. For the best performance and reliability, we recommend using genuine memory cards from reputable brands such as SanDisk, Samsung, Kingston, Lexar, Western Digital or Kioxia.

A: Most card readers suppliers today use a 2-in-1 USB-A + USB-C cable design. Why does MSLFORCE use a USB-A card reader with a separate USB-C OTG adapter? Unlike fixed 2-in-1 designs, our solution includes a dedicated USB-C OTG adapter. This provides better durability, wider compatibility, easier replacement, and allows the adapter to be used with other USB-A devices. It is a more flexible and cost-effective solution for everyday users.