Check the listing for details. MicroSD card reader/writer. Color: Blue, Condition: New. Listed at 5.00 USD. Description Now look at this little microSD card reader/writer - but don't be fooled by its compact size! It's wicked fast and supports up to 128 GB SDHC cards! Simply slide the card into the edge, and plug it into your computer's USB port. No drivers are required, it shows up as a standard 'Mass Storage' device under any OS. It also has a little plastic cover for the USB A connector part so it won't short against nearby electronics. Max read speed is 16 MB/sec, max write speed is 6 MB/sec - most microSD cards are not this fast so the bottleneck will be the card, not the reader. Note: It does not come with a microSD card! FeaturesCompact and lightweightSupport most of OS: Win, MacOS, LINUXUSB2.0 SpeedPlug and useSupport up to 128GB microSD cardNo driver is neededBoth Read and Write functionsGreat for uploading crypto mining programs Sorry there is no refunds or returns. Best RegardsDocRomaniac