This Old Skool 4x Memory Card offers four times the data storage of a standard DreamCast memory card.  With 800 Blocks of memory, you'll never have to worry about losing your game again.  The Old Skool 4x Memory Card includes a button used to select one of four pages and a series of four LED Lights onthe card to indicate which of these pages is currently in use.
 
Four pages of memory blocks. (4 x the regular memory card)
800 Blocks total.
Button for changing which page you are on
Easy to use