

ISR4351-VSEC/K9 is Cisco's combined UC and Security bundle for the ISR 4351. Cisco's official description includes UC and Security licenses and a PVDM4-64. This differs from ISR4351-V/K9, which is the UC bundle, and ISR4351-SEC/K9, which is the Security bundle.
The underlying ISR 4351 supplies three onboard Gigabit Ethernet interfaces, three NIM slots, two SM-X slots and a 2RU chassis. The platform starts at 200 Mbps aggregate throughput and requires FL-4350-PERF-K9 for 400 Mbps. The included PVDM4-64 is a 64-channel voice DSP module; other voice cards, interface modules and CUBE capacity must be quoted by exact line item.
| Exact model / SKU | ISR4351-VSEC/K9 |
| Product type | Cisco ISR 4351 Unified Communications and Security bundle |
| Bundle licenses | UC and Security |
| Included DSP | PVDM4-64 |
| Default aggregate throughput | 200 Mbps |
| Licensed aggregate throughput | 400 Mbps with FL-4350-PERF-K9 |
| Onboard Gigabit Ethernet | 3 |
| NIM slots | 3 |
| SM-X slots | 2 |
| Form factor | 2RU |
| Source match | Exact ISR4351-VSEC/K9 UC, Security and PVDM4-64 bundle description in Cisco's official lifecycle notice |
| Official manufacturer reference | Cisco official ISR 4000 lifecycle notice |
Product Quotation | ![]() | Condition and Packaging | |
![]() | Technical Support Enquiry | Returns and Replacement | |
Shipping Arrangements | ![]() | Warranty Terms |
Cisco ISR4351-VSEC/K9 UC and Security Router Bundle is a CISCO Router ISR 4000 product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
For ISR4351-VSEC/K9, the manufacturer specification lists default aggregate throughput as 200 Mbps.
For ISR4351-VSEC/K9, the manufacturer specification lists licensed aggregate throughput as 400 Mbps with FL-4350-PERF-K9.
For ISR4351-VSEC/K9, the manufacturer specification lists onboard gigabit ethernet as 3.
Contact YYST Global to confirm availability for ISR4351-VSEC/K9, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
Related products

ISR4351-V/K9 is the Cisco ISR 4351 Unified Communications bundle. Confirm exact chassis inventory, bundle entitlement, software eligibility and lifecycle support before purchase.

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 is the Cisco ISR 4351 Application Experience Bundle order. Confirm the exact bundle entitlements, installed modules and lifecycle support before purchase.

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.

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.

ISR4351/K9 is a 2RU Cisco 4000 Series Integrated Services Router with three onboard Gigabit Ethernet interfaces, three NIM slots, two SM-X slots and one ISC slot. Its 200 Mbps base aggregate throughput can be raised to 400 Mbps with the FL-4350-PERF-K9 performance license.

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 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.