ATmega1280 or 2560 Development Board / Prototype Board with ATmega1280-16AU (16 MHz), ATmega1280 Board with COM to USB Bridge, RS232, RS485, external RAM 
Features:
full motherboard / prototype board for ATmega1280
128Kbyte external RAM, second 64Kbyte selectable by extra pin
1x SERIAL to USB Bridge (USART3)
USB2COM (USB2SERIAL) / COM2USB (SERIAL2USB) / USB2 Full Speed
converter onboard for USART3 (serial to USB converter for COM3 / USART3)
2x RS232 (UART0 and UART2) - up  to 250 Kbps per channel
1x RS485 (UART2) - up to 30 Mbps
USB Bridge, RS232, RS485 can be disabled by solder jumper
device can be powered from USB line separate grounds: analog and digital
ISP and JTAG header 2 crystals: 16 MHz system clock, 32.768 kHz asynchron timer/counter0
all pins are available on headers (2,54mm-/0,1" pitch) 2x15pins each
fully assembled board  includes: header layout, schematics, programming tutorial, Mini-USB cable

MSP430 Development Board / Prototype Board, MSP430 Board  
full motherboard / prototype board for MSP430F1611
super thin board
all pins are all available on headers
high computing power 
easy to use: just connect to power supply (+1.8 to +3.6V) and program device
runs with internal oscillator
prepared for equipment with 3 different crystals X1, X2, X3
JTAG header
device specific data (MSP430F1611)
8 MHz clock frequency
48 KB Flash ,10 KB RAM,48 GPIO,12-bit SAR ADC, other integrated peripherals
2x 12bit DAC, analog comparator, DMA, hardware multiplier, SVS
interface
2x hardware SPI or UART, timer UART, hardware I2C
timers
1x watchdog/interval, 1x 16-bit (3CCR), 1x 16-bit (7CCR)

Cypress CY7C68013A - 56 Development oard / Prototype Board
with USB2 HighSpeed MiniUSB, CY7C68013A Board (EZ-USB FX2LP Microcontroller) 

Cypress CY7C68013A-56PVXC - low power Version of CY7C68013-56, full USB2 specified
tiny board, board dimensions 35mm x 51mm (mini module)
USB2 High Speed (480Mbit/s)
all pins available on headers (2,54mm-/0,1" pitch)
Mini USB connector ,128kbit EEPROM onboard voltage regulator (bottom side)
GPIF Interface reset push button, power led
device can be configured / programed / booted over USB and by the onboard eeprom for stand alone
fully assembled board comes with development kit (CD), MiniUSB-Cable, and schematic
optional: female connectors 2x (2x12 pins) are available