Raspberry Pi 1 Model B+ (B PLUS) 512MB Computer Board (2014) 700MHz Broadcom BCM2835 CPU / 512 MB SDRAM @ 400MHz / 10/100 Ethernet RJ45 on-board network Full size HDMI / 4 USB ports / Micro SD slot More energy efficiency (less power required) / Improved power management: manage more devices from your Pi GPIO header expanded (40 pins vs. 26) New 4-pole connector replaces the existing analogue and composite video port on the Model B