Cisco AIR-SAP2602I-A-K9 Aironet 2600. I will be totally honest with everyone, I have no idea what these are. All I know is I saw these things along the ceiling when I was walking the halls in the office. I was told these worked when our office remodeled but these were not compatible with the new equipment. That is why they were removed. Someone could score big with these if you need them. Please see photos and judge condition for yourself. Thanks for looking and ask any qestion.