ISR4431-VSEC/K9
Cisco 4431 Integrated Services Router, which supports 3 Network Interface Modules (NIM) slots, delivers 500 Mbps to 1 Gbps aggregate throughput. This
Cisco · Cisco ISR 4000 Routers
ISR4321/K9
Cisco 4321 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 50Mbps thoughtput by default. With pay-as-you-grow performance, you can increase forwarding capacity to 100Mbps by buying FL-43...
- Ports
- 2
- PoE Power
- 120 W
- Throughput
- 50 Mbps to 100 Mbps
- Uplinks
- 1
- New factory sealed in the original vendor carton
- Serial list issued before shipment
- 12 months replacement warranty as standard
- Worldwide courier or freight from Hong Kong
Product Overview
ISR4321/K9 Overview
Cisco 4321 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 50Mbps thoughtput by default. With pay-as-you-grow performance, you can increase forwarding capacity to 100Mbps by buying FL-4320-PERF-K9 licenses. The published specification for ISR4321/K9 lists 2 Total onboard WAN or LAN 10/100/1000 ports and 120 W available to powered devices. It is supplied new factory sealed, with the serial list issued before shipment and 12 months replacement warranty as standard.
Key Benefits
What Owning ISR4321/K9 Changes
Powered Access Without a Separate Injector Build
2 Total onboard WAN or LAN 10/100/1000 ports with 120 W available to powered devices, so access points cameras and phones are fed from the same switch instead of from a parallel power estate.
Rated Performance Written Into the Quotation
50 Mbps to 100 Mbps published for ISR4321/K9 as its aggregate throughput, confirmed against the current datasheet revision when the line is quoted.
Uplink Capability Settled at Order Not at Install
1 SFP-based ports on ISR4321/K9, so the uplink question is answered on the quotation rather than discovered when the unit is already racked.
Support Registered Under the End User Name
A vendor support contract for ISR4321/K9 is written under the end customer name, so the entitlement sits with the organisation that owns the outage.
Serials Issued Before It Ships
The serial list for your ISR4321/K9 consignment is released before despatch, so it can be checked on the manufacturer portal while the goods are still with us.
Problems It Solves
Pain Points ISR4321/K9 Removes
- PoE budgets sized for desk phones and now asked to carry Wi-Fi 6 access points, where 120 W is the figure that decides it
- Performance taken from a family datasheet rather than from this part number, where the published aggregate throughput is 50 Mbps to 100 Mbps
- Uplink capability fixed at purchase and found insufficient once the access layer behind it was refreshed
- End of sale announcements that leave a proven design with no supply route for ISR4321/K9
- End of sale announcements that leave a proven branch design with no supply route
Who It Is For
Who Benefits Most From ISR4321/K9
Healthcare Estates
Working to very short change windows with serial level records required for compliance
Machine Builders
Replacing an installed component with one that behaves identically to the unit removed
Campus Network Teams
Running one access standard across buildings of very different ages
Hosting Providers
Building repeatable nodes where every batch has to match the last one
Specifications
ISR4321/K9 Manufacturer Specification
As published by Cisco for this part number. Full electrical, port and performance specifications are issued with the quotation against the current datasheet revision.
| Aggregate Throughput | 50 Mbps to 100 Mbps |
|---|---|
| Total onboard WAN or LAN 10/100/1000 ports | 2 |
| RJ-45-based ports | 2 |
| SFP-based ports | 1 |
| Enhanced service-module slots | 0 |
| Doublewide service-module slots | 0 |
| NIM slots | 2 |
| OIR (all I/O modules) | Yes |
| Onboard ISC slot | 1 |
| Default memory double-data-rate 3 (DDR3) error-correction-code (ECC) DRAM (Combined control/services/data planes) | 4 GB |
| Maximum memory DDR3 ECC DRAM (Combined control/services/data planes) | 8 GB |
| Default memory DDR3 ECC DRAM (data plane) | NA |
| Maximum memory DDR3 ECC DRAM (data plane) | NA |
| Default memory DDR3 ECC DRAM (control/services plane) | NA |
| Maximum memory DDR3 ECC DRAM (control/services plane) | NA |
| Default flash memory | 4 GB |
| Maximum flash memory | 8 GB |
| External USB 2.0 slots (type A) | 1 |
| USB console port -type B mini (up to 115.2 kbps) | 1 |
| Serial console port - RJ45 (up to 115.2 kbps) | 1 |
| Serial auxiliary port - RJ45 (up to 115.2 kbps) | 1 |
| Power-supply options | External: AC and PoE |
| Redundant power supply | N/A |
| AC input voltage | 100 to 240 VAC autoranging |
| AC input frequency | 47 to 63 Hz |
| AC input current range, AC power supply (maximum) | 1.5 to 0.6A |
| AC input surge current | 90 A peak and less than 3 Arms per half cycle |
| Typical power (no modules) (watts) | 36 |
| Maximum power with AC power supply (watts) | 125 |
| Maximum power with PoE power supply (platform only) (watts) | 260 |
| Maximum endpoint PoE power available from PoE power supply (watts) | 120 |
Supply Terms
How ISR4321/K9 Is Supplied
| Part Number | ISR4321/K9 |
|---|---|
| Brand | Cisco |
| Category | Cisco ISR 4000 Routers |
| Product Condition | New factory sealed |
| Serial Traceability | Full serial list supplied before shipment |
| Warranty | 12 months replacement plus optional vendor support contract |
| Packaging | Original vendor carton with export grade outer |
| Lead Time | Confirmed in writing per line at quotation |
| Delivery | Worldwide courier or freight from Hong Kong |
Support Contracts
Vendor Support Options Available With ISR4321/K9
Contracts are registered under the end user name rather than under a reseller name, so the entitlement sits with the organisation that owns the outage. See the support contract guide for how the response levels differ.
| Contract Part Number | Coverage |
|---|---|
| CON-OSE-ISR4321K | SNTC-8X5X4OS Cisco ISR 4331 (2GE.2NIM.4G FLASH.4G DRA |
| CON-OSP-ISR4321K | SNTC-24X7X4OS Cisco ISR 4321 (2GE.2NIM.4G FLASH.4G DRA |
| CON-OS-ISR4321K | SNTC-8X5XNBDOS Cisco ISR 4321 (2GE.2NIM.4G FLASH.4G DRA |
| CON-PREM-ISR4321K | SNTC-24X7X2OS Cisco ISR 4331 (2GE.2NIM.4G FLASH.4G DRA |
| CON-S2P-ISR4321K | SNTC-24X7X2 Cisco ISR 4331 (2GE.2NIM.4G FLASH.4G DRA |
| CON-SMBS-ISR4321K | CSCO SUP ESS 8X5XNBD Cisco ISR 4321 (2GE,2NIM,4G FLASH,4G DR |
| CON-SNTE-ISR4321K | SNTC-8X5X4 Cisco ISR 4321 (2GE.2NIM.4G FLASH.4G DRA |
| CON-SNTP-ISR4321K | SNTC-24X7X4 Cisco ISR 4331 (2GE.2NIM.4G FLASH.4G DRA |
| CON-SNT-ISR4321K | SNTC-8X5XNBD Cisco ISR 4321 (2GE.2NIM.4G FLASH.4G DRAM.IPB) |
| CON-SW-ISR4321K | SNTC-NO RMA Cisco ISR 4331 (2GE.2NIM.4G FLASH.4G DRA |
| CON-3OSP-ISR4321K | 3YR SNTC 24X7X4OS Cisco ISR 4321 (2GE.2NIM.4G FLASH.4G DRA |
| CON-3SNTP-ISR4321K | 3YR SNTC 24X7X4 Cisco ISR 4321 (2GE. |
| CON-3SNT-ISR4321K | 3YR SNTC 8X5XNBD Cisco ISR 4331 (2GE.2NIM.4G FLASH.4G DR |
Comparison
ISR4321/K9 Against Other Models in Cisco ISR 4000 Routers
Values are taken from each manufacturer specification. A blank means the manufacturer does not publish that attribute for that model.
| Attribute | ISR4321/K9 | ISR4431-VSEC/K9 | ISR4431/K9 | ISR4451-X-AX/K9 |
|---|---|---|---|---|
| Ports | 2 | 4 | 4 | 4 |
| PoE Power | 120 W | 250 W with optional redundancy | 250 W with optional redundancy | 500 W with optional redundancy |
| Throughput | 50 Mbps to 100 Mbps | 500Mbps to 1Gbps | 500Mbps to 1Gbps | 1 Gbps to 2Gbps |
| Uplinks | 1 | - | - | - |
| Description | - | Cisco ISR 4431 Bundle with UC & Sec Lic. PVDM4-64. CUBE-25 | - | Cisco ISR 4451 AppX Advanced services router (2GE,2NIM,1SM,8G... |
| Product page | View ISR4321/K9 | View ISR4431-VSEC/K9 | View ISR4431/K9 | View ISR4451-X-AX/K9 |
Use Guide
Deployment Guide for ISR4321/K9
Confirm the Full Part Number
Check ISR4321/K9 character for character including any suffix. On this class of hardware a single trailing character commonly changes the software tier, the power option, or whether a bundle is included.
Check Site Prerequisites
Confirm rack space, power feed, cabling and any uplink or accessory dependency before the order rather than on the day of installation.
Calculate the Power Budget
Compare the devices this unit will feed against the 120 W available, using realistic device draw with headroom rather than class maximums.
Settle the Uplink and Optics
Match the uplink module and transceiver to the platform, the measured span and the fibre already installed, and order them on the same line.
Record It on Arrival
Photograph the sealed carton, reconcile the serial against the list supplied before shipment, then open and confirm the unit matches the label.
Bench Power Before Racking
Power the unit, capture the software version and the port or drive inventory, and record it while the unit is still accessible.
Related Products
Other Models in Cisco ISR 4000 Routers
ISR4431/K9
Cisco 4431 Integrated Services Router, which supports 3 Network Interface Modules (NIM) slots, delivers 500 Mbps to 1 Gbps aggregate throughput. This
ISR4451-X-AX/K9
ISR4451-X-AX/K9 integrated router combines high-performance, scalability, Data Center features and smart router is made to run multiple services. This
ISR4451-X-AXV/K9
Cisco 4451 Integrated Services Router, named as ISR4451-X, which supports 2 Enhanced service-module (SM-X) slots, delivers 1 Gbps to 2Gbps aggregate t
ISR4451-X/K9
Cisco 4451 Integrated Services Router, named as ISR4451-X, which supports 2 Enhanced service-module (SM-X) slots, delivers 1 Gbps to 2Gbps aggregate t
ISR4461/K9
ISR4461/K9 is the Cisco ISR 4461 with 4 onboard GE, 3 NIM slots, 1 ISC slot, 3 SM slots, 8 GB Flash Memory default, 2 GB DRAM default (data plane), 4
ISR4221/K9
Cisco 4221 Integrated Services router is design to deliver advanced services to the small enterprise branch environment. It delivers 35Mbps thoughtput
ISR4321-AX/K9
ISR4321-AX/K9 intelligent WAN bundle combines security features, application experience and Wide Area Application Services (WAAS) features together in
Where It Goes
Industries That Deploy It
Manufacturing and Logistics
Connectivity for plant floors, warehouses and distribution sites built for continuous operation rather than office hours.
Service Provider
Repeatable CPE and aggregation hardware supplied at the volume and consistency a managed service contract depends on.
Solutions
Programmes It Is Supplied Under
Support Contracts and SmartNet
A support contract registered under a reseller name is of limited use to the organisation that owns the outage. Entitlement is written under the end user name.
Global Logistics and Drop Shipping
Hong Kong is a practical despatch point for most of the world. Consignments go to the site, not to a central store and then out again.
Procurement for System Integrators
An integrator carries the risk between quoting a client and receiving the hardware. Firm pricing and a written lead time per line is what makes that risk manageable.
Reference
Project Cases and Guides
Carrier Managed CPE Programme
The programme needed identical customer premises equipment supplied continuously for years and shipped directly to end customer sites
Regional Bank Branch Refresh Across 140 Sites
The branch edge had reached end of software support and the estate had drifted into four different router models bought across eight years
Network Refresh Planning Checklist
Refresh programmes fail on supply far more often than on design. This is the sequence that keeps a phased rollout on its dates.
Verifying Hardware Authenticity
Checks that cost minutes on arrival and save a great deal later. Most of them can be done before the carton is opened.
New Versus Refurbished Network Hardware
The choice is rarely about quality. It is about entitlement, traceability and what happens eighteen months after the invoice is paid.
FAQ
ISR4321/K9 Frequently Asked Questions
Is ISR4321/K9 New or Refurbished
Standard supply is new factory sealed in the original vendor carton. If a quotation offers another condition that is stated explicitly in writing before you commit.
Can I Get the Serial Numbers for ISR4321/K9 Before Payment Clears
Yes. Serials are issued before shipment so you can check them on the manufacturer portal while the goods are still with us.
What Is the Lead Time for ISR4321/K9
Availability is confirmed in writing per line at quotation rather than as a project average, because one late line is what moves an installation date.
What Warranty Does ISR4321/K9 Carry
12 months replacement as standard. A vendor support contract is available separately and is registered under the end user name.
How Much PoE Power Does ISR4321/K9 Provide
The manufacturer lists maximum endpoint poe power available from poe power supply of 120 W for this model. A PoE budget should be calculated from realistic device draw with headroom rather than from class maximums.
What Performance Is ISR4321/K9 Rated For
The published aggregate throughput is 50 Mbps to 100 Mbps. Full port and performance specifications are issued with the quotation against the current datasheet revision.
Are Uplink Modules and Optics Included With ISR4321/K9
They are quoted as separate lines and reviewed against the chassis before the quotation is issued, so they reach site in the same consignment as the unit they belong to.
Can You Ship ISR4321/K9 to My Country
Yes. Consignments go worldwide by courier or freight from Hong Kong, with the routing chosen against the destination clearance regime and your deadline.
Can You Drop Ship ISR4321/K9 to My Customer
Yes. Consignments can be released directly to an end customer address under your own documentation.
Request Pricing for ISR4321/K9
Send the quantity and destination country. Availability and lead time come back in writing, with the serial list before shipment.