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for Arduino MEGA compatible Atmega2560 and Atmega32u2 processors are compatible with all RAMPS class firmware
Crystals for usb and mcu (exact time 10ppm)
4 thermistor jacks
All extra pins broken on both processors (lets use 32u2 for LUFA AVR programmer, etc.)
2 channel SDRAMPS leak compatible SPI Motor Controllers
Material:Plastic + metal
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.