Flash Memory Card Reader/Writers and Memory Types Flash Memory Card Readers and Writers are used to easily transfer files such as digital pictures, mp3s, data files, and PDA files between computer and Memory CardsCFCompact Flash - Small and durable.MicrodriveIBM Microdrive - Super Fast. Up to 1GB capacity. Same size as CF.SDSecure Digital - Same size as MMC cards with encryption capabilities.SMSmart Media - Very small and thin. MMCMultiMedia Card - Small with high transfer speeds. More durable.MSMemory Stick - Same standard used by SonyxDxD-Picture Card - New and Small Flash technology developed by FujiPen DrivePortable USB Drives plug directly into USB port5.25 bay mounted multi function panel 5.25Multi-function card reader Card support CF/SD/M2/TF/MS Maximunm capacity of the memory card uo to 32G One 1394 port,the transfer speed up to 400Mbps With one Esata ,the transfer speed uo to 3Gbps With 2 usb hub ONE SATA Support LED Support the HD Audio input/Output for 5.25 Drive Bay