Cisco ISR4351/K9 4000 Series Integrated Services Router
- 763 412 7282
- +86 010 69614620
ISR4351/K9 Overview
ISR4351/K9 Platform and Throughput Tier
ISR4351/K9 is the ISR 4351 base hardware PID. Cisco specifies 200 Mbps default aggregate throughput and 400 Mbps with the FL-4350-PERF-K9 performance license. Buyers should distinguish licensed throughput from physical interface speed and verify the actual license state rather than assuming every chassis operates at the upgraded tier.
Integrated Ports and Module Capacity
The router provides three onboard Gigabit Ethernet interfaces, three Network Interface Module slots, two Enhanced Service Module slots and one Internal Services Card slot. Cisco's ordering table lists 4 GB default flash and 4 GB default DRAM. The 2RU chassis supports hardware expansion for WAN, voice and service functions, but those modules are separate inventory items.
Purchase Checks
- Verify the FL-4350-PERF-K9 license before quoting 400 Mbps throughput.
- Inventory NIM, SM-X, ISC and voice DSP modules by exact PID.
- Confirm AC, DC or PoE power configuration and redundancy requirements.
- Check IOS XE release, security licensing, rack hardware and lifecycle support.
ISR4351/K9 Specification
| Exact model / SKU | ISR4351/K9 |
| Product type | Cisco 4000 Series Integrated Services Router |
| Default aggregate throughput | 200 Mbps |
| Performance-license throughput | 400 Mbps with FL-4350-PERF-K9 |
| Onboard Gigabit Ethernet | 3 |
| NIM slots | 3 |
| SM-X slots | 2 |
| ISC slots | 1 |
| Default flash | 4 GB |
| Default DRAM | 4 GB |
| Dimensions | 3.5 x 17.25 x 18.5 in (H x W x D) |
| Form factor | 2RU |
| Source match | Exact ISR4351/K9 ordering configuration, throughput license tier and physical specifications in Cisco's official ISR 4000 data sheet |
| Official manufacturer reference | Cisco 4000 Series ISR official data sheet |
ISR4351/K9 Warranty
 | Product Quotation |  | Condition and Packaging |
 | Technical Support Enquiry |  | Returns and Replacement |
 | Shipping Arrangements |  | Warranty Terms |
ISR4351/K9 FAQ
What is ISR4351/K9?
Cisco ISR4351/K9 4000 Series Integrated Services Router is a CISCO Router ISR 4000 product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
What default aggregate throughput is listed for ISR4351/K9?
For ISR4351/K9, the manufacturer specification lists default aggregate throughput as 200 Mbps.
What performance-license throughput is listed for ISR4351/K9?
For ISR4351/K9, the manufacturer specification lists performance-license throughput as 400 Mbps with FL-4350-PERF-K9.
What interfaces and ports does ISR4351/K9 provide?
For ISR4351/K9, the manufacturer specification lists onboard gigabit ethernet as 3.
Is ISR4351/K9 available from YYST Global?
Contact YYST Global to confirm availability for ISR4351/K9, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
Related products
Related ISR4351/K9
Cisco ISR4351-SEC/K9 3GE,3NIM,2SM,4G FLASH,4G DRAM,Security Bundle
ISR4351-SEC/K9 is the Cisco ISR 4351 security bundle identified in the official ordering row as including the SEC license. See the verified interface, replacement and lifecycle boundaries before requesting a quote.
ISR4351-AX/K9 Cisco ISR 4351 Application Experience Bundle Router
ISR4351-AX/K9 is the Cisco ISR 4351 Application Experience Bundle order. Confirm the exact bundle entitlements, installed modules and lifecycle support before purchase.
ISR4351-V/K9 - Cisco 4000 Family Integrated Services Router
ISR4351-V/K9 is the Cisco ISR 4351 Unified Communications bundle. Confirm exact chassis inventory, bundle entitlement, software eligibility and lifecycle support before purchase.
Cisco ISR4351-AXV/K9 Application, Security and UC Router Bundle
ISR4351-AXV/K9 is a Cisco ISR 4351 AXV bundle with Application, Security and Unified Communications licenses and a PVDM4-64 voice DSP module. The bundle is distinct from the AX package because AXV adds UC licensing and voice DSP hardware.
Cisco ISR4351-VSEC/K9 UC and Security Router Bundle
ISR4351-VSEC/K9 is a Cisco ISR 4351 bundle with Unified Communications and Security licenses plus a PVDM4-64 voice DSP module. It combines voice and security bundle entitlements with the 2RU ISR 4351 hardware platform; installed licenses and DSP inventory should be verified from the device and sales order.
Cisco ISR4351-DNA Integrated Services Router with DNA Subscription
ISR4351-DNA is the Cisco ISR 4351 hardware configuration with DNA subscription ordering. Cisco identifies the platform with three onboard Gigabit Ethernet interfaces, three NIM slots, two SM-X slots, 4 GB flash, 4 GB DRAM and IP Base software. Subscription term and entitlement must be confirmed separately on the quote.
ISR4321-SEC/K9 - Cisco 4321 Integrated Services Security Router
ISR4321-SEC/K9 is Cisco's ISR 4321 security bundle with a SEC license. It has two onboard Gigabit Ethernet interfaces and two NIM slots, while the 50 Mbps default aggregate tier and optional 100 Mbps performance tier are separate licensing considerations.
ISR4331/K9 Cisco ISR 4331 Base Hardware Order Router
ISR4331/K9 is the Cisco ISR 4331 Base Hardware Order with three onboard Gigabit Ethernet interfaces, two NIM slots, one ISC slot and one service-module slot. Verify exact modules, licenses and lifecycle eligibility before purchase.