With the purpose of evaluation of ARM microcontroller, TM4C1294 connected launchpad evaluation kit is an ideal evaluation platform for the ARM Cortex M4F based microcontroller from the Texas Instrument. The board features the TM4C1294NCPDT microcontroller featuring Hi-speed data connectivity via 10/100 Ethernet MAC and PHY, USB 2.0 device interface, hibernation module and motion control PWM.
The EK-TM4C123GXL comes with programmable user button, RGB LED and many other onboard features for wide embedded application. The form factor of the board is design in a stackable features which allows multiple third party board and booster pack to plug very easily. The connectivity features of the board allows the developers to access cloud based quick start application and many supported toolchains offered both online and offline.
Features:

High Performance TM4C1294NCPDT MCU:

120MHz 32-bit ARM Cortex-M4 CPU
1MB Flash, 256KB SRAM, 6KB EEPROM
Integrated 10/100 Ethernet MAC+PHY, data protection hardware, 8x 32-bit timers
Dual 12-bit 2MSPS ADCs, motion control PWMs
USB H/D/O, and many additional serial communication interfaces

Dual, stackableBoosterPackXL connection sites
Cloud-based, Exosite QuickStart Application
TivaWare 2.1
On-board, in-circuit debug interface (ICDI)
Multiple development tool chain support:CCS, Keil, IAR, Mentor & GCC

Relevant Resources:
Meet the Tiva C Series TM4C1294User Guide