Cisco Aironet 2800 series indeed has Mobility Express firmware named like AIR-AP2800-K9-ME-8-5-182-0.tar . The original string could have had dashes removed and characters permuted.

Developed by a consortium of leading semiconductor and AI firms, this device integrates neural processing units (NPUs), high-speed routing logic, and secure storage into a single compact form factor. Its primary goal is to bring AI inference and data preprocessing closer to the data source, reducing latency and bandwidth costs.

When you load this software onto a Cisco 2800 AP, you unlock several enterprise-grade capabilities:

Most Cisco APs ship with a lightweight image. To move to Mobility Express: Connect to the AP via the Console port or SSH.