Compared with the Lerdge-S board and Lerdge-X board：
Software: S motherboard and X motherboard are based on the same set of software development, with the same software maturity. As the basis entry-level motherboard, X board only contains the most basic 3D printing capabilities, no more expansion. Compared with S-board, the X-board is with less expansion function in software.
Hardware:X-board chipset configuration is slightly lower than that of the S-board, but they are with the same frequency of operation. X-board can not support color LED function( but supports single color strips). X-board only supports single print head, and an external expansion module is needed for the use of hotbed.