The Raspberry Pi Model A+ is the perfect board for the minimalist Pi fan. This low-cost Pi uses the same processor as the model B+, but does away with the Ethernet jack and three of the USB Ports. This makes it lower power, less expensive and much lighter & smaller! It's still compatible with all Pi operating systems and software, and has the exact same 40 pin GPIO connector and camera/display sockets, so any HATs or Pi Plates or other things that plug into the model B+ will work just the same. It also has the same HDMI, sound/composite connector and microUSB connector for power Unlike the Raspberry Model B+, there's only one USB port and no ethernet jack but it's also significantly smaller at 65mm x 56mm if you don't include overhang from the connectors. Also, there is only 256 MB of RAM onboard instead of 512, so if you have a RAM-intensive application you may need to stick with the B+ Don't forget, you'll need a USB power supply with microUSB cable, and a microSD card with a Raspberry Pi OS on it (we suggest a Raspbian 4G card or NooBS 8G card) Dimensions: 65mm x 56mm / 2.5" x 2.25" Processor: ARM 700Mhz CPU USB: One USB 2.0 Port - Keeping it compact means minifying the footprint as much as possible Video Output: HDMI and Composite Sound: L/R Stereo (via 3.5mm 4 Pole Cable) Memory: 256MB Ram Operating System: Uses microSD card slot to load O/S Digital interfaces: 2 onboard ribbon slots for Camera and Display GPIO: 40 GPIO pins, backwards compatible to B board No Ethernet jack Product images and description by Adafruit