8 GB microSDHC Class 4 Flash Memory Card SDC4 preloaded with N00Bs for Raspberry Pi.
NOOBS (New Out of Box Operating System) is the Operating System image for the Raspberry PI. It is not the only choice you can load, but it is recommended for first-time Pi users. You don’t need to buy this MicroSD card with NOOBS, you can download it yourself and image it to a Micro SD (4gb or larger) of your choice. We just made it easier for you, we loaded it all on the Micro SD for you.
You get a 8GB MicroSD card (for RPI Model B+), with an SD adapter (for Raspberry PI Model A, Model B, or your PC/MAC). This is perfect for a Raspberry Pi beginner and convenient for those with more experience
On first boot, NOOBS presents you with a choice of operating systems to install, including Raspbian, Pidora and two flavours of XBMC. Once you have installed an operating system, you can return to the NOOBS interface by holding down shift during boot; this allows you to switch to a different operating system, or overwrite a corrupted card with a fresh install of the current one.