Radxa Rock is described as 'The Radxa Rock steps up the microprocessor game with a quad-core 1.6 GHz processor, built-in Bluetooth, WiFi with antenna, 1 GB of RAM, and 4 GB of onboard storage'. There are more than 10 alternatives to Radxa Rock for Linux, Android, BSD and Windows. The best alternative is Raspberry Pi. It's not free, so if you're looking for a free alternative, you could try OLinuXino or Orange Pi. Other great apps like Radxa Rock are Odroid (Paid), Banana Pi (Paid), BeagleBoard (Paid) and Minnow Board (Free, Open Source).
A low-cost, capable little PC which can be used for many of the things that your desktop PC does, like games, spreadsheets and word-processing. It also plays high-definition video. We want to see it being used by children and young people all over the world to learn programming.
The BeagleBoard.org Foundation is a US-based 501(c) non-profit corporation existing to provide education in and promotion of the design and use of open-source software and hardware in embedded computing. BeagleBoard.
Cubieboard is a single-board computer, made in Shenzhen, Guangdong, China. The first short run of prototype boards were sold internationally in September 2012, and the production version as started to be sold in October 2012. It can run Android 4 ICS, Ubuntu 12.
The PandaBoard is a low-power, low-cost single-board computer development platform based on the Texas Instruments OMAP4430 system on a chip (SoC). The board has been available to the public at the subsidized price of US$174 since 27 October 2010.