... Flash• Default: 256 MB • Maximum: 8 GBCisco 3900 Router CISCO3945E/K9 Cisco 3945 w/SPE250(4GE, 3EHWIC, 3DSP,4SM, 256MBCF,1GBDRAM ... 3925 w/SPE200(4GE, 3EHWIC, 3DSP, 2SM, 256MBCF,1GBDRAM,IPB) CISCO3945/K9 Cisco 3925 w/SPE150(3GE,4EHWIC,4DSP,4SM, 256MBCF,1GBDRAM ... ,IPB) CISCO3925/K9 Cisco 3945 w/SPE100(3GE,4EHWIC,4DSP, 2SM, 256MBCF,1GBDRAM ...