Summary: The Aironet 2602E is designed for commercial use. This particular model requires separate controller to work. So be careful when you order it. It does not come with power supply, it's understandable, as it was designed for work with POE switch. My big complain is, this unit does not come with any antenna but picture shows there are 4! I had to purchase those antenna separately for $35 each. It's not a big deal but the picture is very misleading.