Cisco C395 Hardware Installation Manual page 9

Overview
Figure 3: Serial Number on Pullout Asset Card
The serial number is also on the label on the cover of the chassis as shown in the following figure.
Caution The cover latch on the top of the chassis cover is not supported. There are no internal field-replaceable
parts in the ESA C195, C395, C695, and C695F.
Cisco Email Security Appliance C195, C395, C695, and C695F Hardware Installation Guide
Serial Number Locations
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