Writing to MicroSDHC cards in player

I am curious as to whether or not I can put my microSDHC card in my fuze+ and then write to it; add songs to it while the player is connected to the computer. Can I do this or do I need a USB card adapter?

you can use the fuze+ as a reader. if it is connected in MTP mode the external storage will show as an additional disk next to internal storage. if it is in MSC mode the fuze+ will create 2 disks when it is connected.