I've noticed this same issue for some of my devices, even when they do not have external peripherals attached. If you need to categorize or organize devices you may need to opt for tagging (tags) or systems manager.
I've heard the Security Appliance>Addressing & VLANs>Client tracking can also potentially impact how clients are identified
Adam R MS | CISSP, CISM, VCP, MCITP, CCNP, ITILv3, CMNO
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