The nRF51 Development Kit combined with the nRF51 SDK forms a complete solution for product development based on nRF51 series chips. The nRF51 Development Kit is fitted with the nRF51422 chip, which is a powerful, highly flexible multiprotocol System on Chip (SoC) ideally suited for ANT™/ANT+, Bluetooth® low energy (BLE), and 2.4 GHz proprietary ultra-low power wireless applications. And, if you are not using the ANT protocol, you can use the nRF51822 chip in your end product - without any changes needed to your code.
nRF51422 flash based ANT/ANT+, Bluetooth low energy SoC solution
2.4 GHz compatible with nRF24L devices
Buttons and LEDs for user interaction
I/O interface for Arduino form factor plug-in modules
SEGGER J-Link OB Debugger with debug out functionality
Virtual COM Port interface via UART
Drag and drop Mass Storage Device (MSD) programming