Cisco Part Number: IRM-SSD-100G= is a Cisco 100-GB industrial-grade field-replaceable SSD, spare (IR1833 and IR1835 only)
The IR1800 Series supports memory expansion to 100 GB (for the IR1833-K9 and IR1835-K9 platforms): IRM-SSD-100G. This pluggable industrial SSD can be used to store mission-critical data and applications or multimedia files.
The highlights of the IRM-SSD-100G= SSD module are:
Provides an additional 100 GB of additional Flash memory storage.
Provides space to store application data for Cisco IOx.
The SSD is a Field Replaceable Unit, but is not hot-swappable.