Cisco Catalyst 9800 40 Wireless Controller

For medium-sized campus deployments
Up to 2000 APs  32 000 clients  and 40-Gbps throughput
Hot patching  time saving and hitless upgrades
Advanced  on-demand telemetry

 High availability and seamless software updates  enabled by hot and cold patching  
keep your clients and services always on during planned and unplanned events.

Secure air  devices  and users with the Cisco Catalyst 9800-40. Wireless infrastructure becomes the strongest first line of defense with Cisco Encrypted 
Traffic Analytics (ETA) and Software-Defined Access (SD-Access). The controller comes with built-in security: secure boot  runtime defenses 
image signing  integrity verification  and hardware authenticity.

Built on a modular operating system  the 9800-40 features open and programmable APIs that enable automation of day-0 to day-N network operations. 
Model-driven streaming telemetry provides deep insights into the health of your network and clients.

Maximum number of access points : Up to 2000
Maximum number of clients : 32 000
Maximum throughput : Up to 40 Gbps
Maximum WLANs : 4096
Maximum VLANs : 4096
Max Site Tags : 2000
Max Flex APs per Site : 100
Max Policy Tags : 2000
Max RF Tags : 2000
Max RF Profiles : 4000
Max Policy Profiles : 1000
Max Flex Profiles : 2000
Interfaces : 4x 10 GE/1 GE SFP+/SFP
Power supply : AC power with optional redundant AC power
Maximum power consumption : 381W
Deployment modes : Centralized  Cisco FlexConnect  and Fabric Wireless (SD-Access)
Form factor:1RU
License : Smart License enabled
Operating system : Cisco IOS XE
Management : Cisco DNA Center  Cisco Prime Infrastructure  integrated WebUI  and third party (open standards APIs)*
Interoperability ; AireOS-based controllers*
Policy engine : Cisco Identity Services Engine (ISE)*
Location Platform : Cisco Connected Mobile Experiences (CMX)/ Cisco DNA Spaces *
Access points : Aironet 802.11ac Wave 1 and Wave 2 access points  Catalyst 9100 802.11ax access points
Width : 17.3 inches (43.94 cm)
Depth : 19.5 inches (49.53 cm)
Height : 1.72 inches (4.37 cm)
Weight : 22.8 lb (10.34 kg)
Hard Disk Drives (HDD) :  SATA Solid-State Drive (SSD)
240GB of memory