What is difference between different types of SRU boards?
A： Currently there're 4 types of SRU boards: SRUB, SRUC, SRUD, SRUE. SRUC/SRUD support NE40-2. SRUB/SRUE support NE40-2, NE40-4, NE40-8. SRUE is improved version of SRUB. SRUD is improved version of SRUC. (SRUB and SRUC are old boards). Difference SRUB: CPU:MPC750 366MHZ RAM:512M,compatible with 1G Flash:16M,compatible with 32M Storage: Harddisk SRUE: CPU:PMC7447A 1GHZ RAM:1G,compatible with 2G Flash:32M,compatible with 64M Storage: CFCard and Harddisk Note: different types of SRU boards can't be used together in one NE40 router.