ISR4331/K9 Cisco ISR 4331 Base Hardware Order Router
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ISR4331/K9 Overview
ISR 4331 Base Hardware Order
ISR4331/K9 is an exact Cisco order with three onboard Gigabit Ethernet interfaces, two NIM slots, one ISC slot and one service-module slot. Order boundary: The base /K9 PID establishes the router chassis; APP, SEC, UC, PVDM voice resources and performance upgrades require separate evidence.
Licensed performance boundary
100 Mbps default aggregate throughput, upgradeable to 300 Mbps with the documented performance license. Published aggregate throughput is a platform limit and does not guarantee every encryption, application, voice or service-module workload.
Exact acceptance evidence
Inventory every installed NIM and the single service-module position before purchase. Compare the running license and configuration to the base PID so a used chassis is not described as a bundled SEC, AX or voice order without entitlement evidence.
Migration work package
Map the service-module workload, WAN interfaces and 100/300 Mbps demand to a current Catalyst 8200 or 8300 design. Preserve rack, power and configuration dependencies that are invisible in the base chassis label.
Lifecycle record
Cisco lists the affected ISR 4331 generation with support ending 30 November 2028. Verify serial-specific support and software eligibility; existing inventory does not extend the published date.
Receiving checklist
Record PID, serial, memory, flash, power supplies, onboard links, NIM/ISC/service modules, software release, performance license and every active entitlement. Save configuration and representative load tests with the asset record.
Official sources: Cisco ISR 4000 data sheet and Cisco lifecycle and migration notice.
ISR4331/K9 Specification
| Exact model / SKU | ISR4331/K9 |
| Exact Cisco PID | ISR4331/K9 |
| Hardware platform | three onboard Gigabit Ethernet interfaces, two NIM slots, one ISC slot and one service-module slot |
| Order boundary | The base /K9 PID establishes the router chassis; APP, SEC, UC, PVDM voice resources and performance upgrades require separate evidence. |
| Published performance | 100 Mbps default aggregate throughput, upgradeable to 300 Mbps with the documented performance license |
| Acceptance evidence | Inventory every installed NIM and the single service-module position before purchase. Compare the running license and configuration to the base PID so a used chassis is not described as a bundled SEC, AX or voice order without entitlement evidence. |
| Migration work | Map the service-module workload, WAN interfaces and 100/300 Mbps demand to a current Catalyst 8200 or 8300 design. Preserve rack, power and configuration dependencies that are invisible in the base chassis label. |
| Lifecycle | Cisco lists the affected ISR 4331 generation with support ending 30 November 2028 |
| Source match | ISR4331/K9: exact ISR hardware, bundle suffix, performance and lifecycle verified from Cisco documentation |
| Official manufacturer reference | Cisco ISR 4000 Series data sheet |
ISR4331/K9 Warranty
 | Product Quotation |  | Condition and Packaging |
 | Technical Support Enquiry |  | Returns and Replacement |
 | Shipping Arrangements |  | Warranty Terms |
ISR4331/K9 FAQ
What is ISR4331/K9?
ISR4331/K9 Cisco ISR 4331 Base Hardware Order Router is a CISCO Router ISR 4000 product supplied by YYST Global for enterprise IT procurement and infrastructure projects.
Is ISR4331/K9 available from YYST Global?
Contact YYST Global to confirm availability for ISR4331/K9, the required quantity, exact configuration, delivery destination and current lead time before ordering. A product listing does not confirm current inventory.
What is the price of ISR4331/K9?
The current reference price for ISR4331/K9 is US$ 450.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
What should buyers verify before ordering ISR4331/K9?
Confirm the exact model suffix, interfaces, power option, software or licenses, included accessories, new factory sealed, warranty and destination requirements before ordering ISR4331/K9.
Related products
Related ISR4331/K9
ISR4331-V/K9 Cisco ISR 4331 Unified Communications Bundle Router
ISR4331-V/K9 is the Cisco ISR 4331 Unified Communications Bundle order. Confirm the exact bundle entitlements, installed modules and lifecycle support before purchase.
ISR4331-AX/K9 - Cisco 4000 Family Integrated Services Router
ISR4331-AX/K9 is the Cisco ISR 4331 AX Application Experience Bundle combining APP and SEC licensing with the three-GE ISR4331 platform. Verify WAAS/application scope and entitlement state before purchase.
ISR4331-SEC/K9 - Cisco 4000 Family Integrated Services Router
ISR4331-SEC/K9 is the Cisco ISR 4331 Security Bundle with IP Base and advanced security licensing. It uses the three-GE ISR4331 platform and is distinct from AX, voice and bare-router orders.
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ISR4331-VSEC/K9 - Cisco 4000 Family Integrated Services Router
ISR4331-VSEC/K9 is a Cisco ISR 4331 voice-and-security bundle. Cisco's official remanufactured-product listing describes this PID as an ISR 4331 bundle with UC and security licensing plus a PVDM4-32, distinguishing it from the base ISR4331/K9 chassis.
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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.
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.
ISR4321-AX/K9 Cisco ISR 4321 Application Experience Bundle Router
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