Wired Cisco Integrated Services Router ISR 4351-AX ISR4351-AX/K9 Cisco SD WAN Router

Exceptional Performance for Demanding Workloads

The ISR 4351-AX delivers substantial aggregate throughput, scalable from 200 Mbps up to 400 Mbps (with performance license), capable of running multiple concurrent network services without compromising data performance. This makes it ideal for bandwidth-intensive applications and high-traffic environments.

Advanced Application Experience & Security

Equipped with the "AX" bundle, this Cisco Router provides deep application visibility and control, ensuring predictable application performance across your WAN. It integrates robust security features, including advanced threat protection, encryption, and VPN capabilities, safeguarding your network from evolving cyber threats.

Superior Modularity and Scalability

The ISR 4351-AX offers extensive modularity with three Network Interface Module (NIM) slots and two Service Module (SM-X) slots, along with an Integrated Services Card (ISC) slot. This flexible architecture allows for significant expansion and customization of WAN, LAN, voice, and compute services to adapt to future business growth.

Foundation for Modern Enterprise Networks

As a cornerstone of your branch infrastructure, the ISR 4351-AX effectively consolidates multiple network functions into a single device. It provides the intelligent routing necessary for wired connections via Cisco Network Switch devices and delivers the secure, high-capacity backbone essential for reliable Cisco Wireless AP performance.

Cisco ISR 4351-AX (ISR4351-AX/K9) Detailed Parameters

Parameter Category	Parameter	Specification
Device Type	Model	ISR 4351-AX
	Part Number	ISR4351-AX/K9
	Form Factor	2RU Rack-mountable (19-inch)
Performance	Aggregate Throughput (Default)	200 Mbps
	Aggregate Throughput (Boost License)	Up to 400 Mbps (up to 1 Gbps with performance license)
Connectivity	Onboard GE WAN/LAN Ports (RJ-45)	3
	Onboard GE WAN/LAN Ports (SFP)	3
	NIM Slots	3
	SM-X Slots (Double-Wide)	2
	ISC Slot	1
	USB 2.0 Ports (Type A)	2
	USB Console Port (Type B mini)	1
	Serial Console Port (RJ-45)	1
	Serial Auxiliary Port (RJ-45)	1
Memory	Default DRAM	4 GB
	Maximum DRAM	16 GB
	Default Flash Memory	4 GB
	Maximum Flash Memory	16 GB
Software & Licenses	Operating System	Cisco IOS XE
	Included Licenses (AX Bundle)	IPBase, Security (SEC), Application Experience (APPX)
	Optional Licenses	Performance License, Unified Communications (UC)
Power	Power Supply	Internal AC (Standard)
	AC Input Voltage	100 to 240 VAC autoranging
	Maximum Power Consumption	430 W (Platform Only)
Physical Specifications	Dimensions (H x W x D)	88.9 x 438.2 x 469.9 mm (3.5 x 17.25 x 18.5 inches)
	Weight (Approximate)	13.1 kg (28.88 lbs)
	Rack Height	2RU
Environmental	Operating Temperature	0°C to 40°C
	Operating Humidity	5% to 85% non-condensing
Compliance	Safety	UL, EN, IEC standards
	EMC	FCC, EN, CISPR standards