c1900-universalk9-mz.SPA.158-3.M7.bin 251371520 bytes total (88576000 bytes free) Cisco ios 1941 ios 15.8.3M9 support
Standard binary file for booting the router. c1900universalk9mzspa1583m7bin
512 MB (1 GB recommended for full security features) Flash: At least 256 MB c1900-universalk9-mz
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