The Cisco® Catalyst® 9300 Series switches are Cisco’s lead stackable enterprise switching platform built for security, IoT, mobility, and cloud. They are the next generation of the industry’s most widely deployed switching platform. Catalyst 9300 Series switches form the foundational building block for Software-Defined Access (SD-Access), Cisco’s lead enterprise architecture. At up to 480 Gbps, they are the industry’s highest-density stacking bandwidth solution with the most flexible uplink architecture. The Catalyst 9300 Series is the first optimized platform for high-density Wi-Fi 6 and 802.11ac Wave2. It sets new maximums for network scale. These switches are also ready for the future, with an x86 CPU architecture and more memory, enabling them to host containers and run third-party applications and scripts natively within the switch. The Catalyst 9300 Series is designed for Cisco StackWise® technology, providing flexible deployment with support for nonstop forwarding with Stateful Switchover (NSF/SSO), for the most resilient architecture in a stackable (sub-50-ms) solution. The highly resilient and efficient power architecture features Cisco StackPower®, which delivers high-density Power over Ethernet Plus (PoE+), 60W Cisco Universal Power over Ethernet (Cisco UPOE) and 90W Cisco UPOE+© ports. The switches are based on the Cisco Unified Access™ Data Plane 2.0 (UADP) 2.0 architecture which not only protects your investment but also allows a larger scale and higher throughput. A modern operating system, Cisco IOS® XE with programmability offers advanced security capabilities and Internet of Things (IoT) convergence.

Ports & interfaces
Basic switching RJ-45 Ethernet ports type	None
SFP module slots quantity	48
Weight & dimensions
Width	444 mm
Depth	488 mm
Height	43 mm
Weight	7.86 kg
Operational conditions
Operating temperature (T-T)	-5 - 40 °C
Storage temperature (T-T)	-40 - 70 °C
Operating relative humidity (H-H)	5 - 90%
Operating altitude	0 - 3000 m
Network
Networking standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3ad, IEEE 802.3af, IEEE 802.3ap, IEEE 802.3bz, IEEE 802.3u, IEEE 802.3z
Full duplex	Y
VLAN support	Y
Number of VLANs	4000
Data transmission
MAC address table	32000 entries
Switching capacity	256 Gbit/s
Forwarding rate	190.47 Mpps
Jumbo frames support	Y
Jumbo frames	9198
Security
DHCP features	DHCP snooping
Access Control List (ACL)	Y
Management features
Switch type	Managed
Switch layer	L2/L3
Quality of Service (QoS) support	Y
MIB support	Y
Design
Rack mounting	Y
Stackable	Y
Product colour	Grey
LED indicators	Y
Performance
Mean time between failures (MTBF)	281920 h
Logistics data
Harmonized System (HS) code	85176990
Multicast features
Multicast support	Y