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Raspberry Pi Model A+ out now. 20% cheaper, 24% shorter and 42% thinner!
You can buy a Raspberry Pi Model A+ right now. It costs around $20/£15, it's just 56mm long, 12mm thick and uses up to 45% less power than a Model B+"¦
Model A+ Specs:
Dimensions: 65x56x12mm
Memory: 256MB RAM
Expansion: Micro SD slot,
1x USB, 40x GPIO
Networking: None
Price: ~$20/£15
Weight:

The freshly updated version of the Model A does much more than simply bring it in line with the Raspberry Pi Model B+ released in the summer.
The Raspberry Pi Model A+ is the same dimensions as a HAT (Hardware Attached on Top) add-on board, the same price as two cinema tickets and can run at nearly half the power consumption as the Model B+.

Since it uses the same improved power chain as the Model B+, the Model A+ consumes much less power than any other Raspberry Pi. According to its designer, James Adams, running the same 'hello_teapot' demo with a USB keyboard and a HDMI monitor connected the Model B+ consumes 370mA, while the A+ consumes just 200mA - 45% less power under the same conditions.