Difference between 1131AG & 521 APs for 2.4G

Hi,
If I only need 2.4G support what is the difference?
Why does Cisco not show 521 model AP on this page,
http://www.cisco.com/en/US/products/hw/wireless/products_category_buyers_guide.html
Thanks, MH

The 521 model is designed to work in small office/home office environments with the 500 series wireless controller. If you're going to have a deployment of more than a few APs, or want scalability and more advanced feature/functionality, then you should go with the 1131AG hanging off of a small controller like the 2100 series, or the WLC-NM module for an Integrated Services Router like the 2800 series. If you're not interested in controller based (LWAP) technology and just want a stand alone AP, than go with an autonamous 1131AG. Just make sure to specify the part numbers correctly when ordering (AP for autonamous, LAP for controller based).

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