Mr.

[afowillyadeosun]

Hello, 

Just want to find out how many Access Points does Wireless Controller AIR-CT5520-K9  support

[Mark Malone]

http://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-1/5520-WLC-DG/b_Cisco-5520-WLC-deployment-guide.html

Release 8.1 delivers the new Cisco 5520 wireless controller with support for 20 Gbps throughput, 1500 APs, and 20,000 clients to ensure better performance and scale for business critical networks.

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[afowillyadeosun]

Hello Mark,

Many thanks for your reply however have seen that on Cisco website http://www.cisco.com/c/en/us/products/wireless/5520-wireless-controller/index.html

but looking the number this particular part number  AIR-CT5520-K9 supports. 

[Mark Malone · Accepted solution]

Hi 5520 is the platform name , k9 is the crypto image for encryption it can come sometimes with or without k9 , that's same product same specs , 1500 aps supported or are you saying something else ?

the doc I provided is for  air-ct5520-k9 just with new version 8.1 software release features and comparison chart to older 5508 model

[Leo Laohoo]

Currently, 5520 can support up to 1,500 APs, however, this model has more-than-enough grunt to support APs between 2,500 to 5,000 APs in future releases.  

If you want to future-proof your investment, 5520 or 8540 is the way to go.