The Raspberry Pi B+ is the other latest update of Raspberry Pi. Raspberry Pi B+ has a couple of differences from previous versions. These are the major differences:
Raspberry Pi B+ uses a micro SD card
It has a larger, 40-pin I/O connector
You now need an adaptor cable if you want to use the AV output to connect your Raspberry Pi B+ to a TV
Raspberry Pi B+ has a total of four USB ports instead of two