ITMall,Your IT Global Procurement Service Expert
Cisco ISR4431/K9
Uncategorized
N/AVerified

Cisco ISR4431/K9

Model (MPN)
ISR4431/K9
Condition
New Retail
Certified Engineer Tested
Out of Stock

Key Specifications

Aggregate Throughput (Default)500 Mbps
Aggregate Throughput (Performance License)1 Gbps
Aggregate CEF Only Throughput (Boost License)Over 4Gbps
Total onboard WAN or LAN 10/100/1000 ports4
Total onboard WAN or LAN 10Gbps ports-
RJ-45-based ports4
Your Price
Best Value
$3,500.00
List Price: $3,800.00Save 8%
Availability Out of Stock
Quantity

Need configuration help?

Our CCIE certified engineers can help you verify compatibility.

Secure Payment
VISA
Pay
WIRE

Fast Dispatch

Global logistics network aiming for same-day handover.

48hrs
Avg. Shipping
99%
On-Time

Guaranteed Quality

Every unit undergoes rigorous 38-point inspection test.

3Year
Warranty
0.1%
RMA Rate

Global Reach

Trusted by enterprise clients across 6 continents.

85+
Countries
20k+
Clients

Expert Support

Certified network engineers ready to assist with configuration.

24/7
Assistance
CCIE
Certified

Overview

The Cisco ISR4431/K9 is a powerful member of the Cisco 4000 Family Integrated Services Routers (ISRs), delivering revolutionary WAN communications for enterprise branches. This 1RU router offers 500 Mbps default aggregate throughput, scalable to 1 Gbps with Performance License and over 4 Gbps CEF with Boost License. Designed for Software Defined WAN (SD-WAN), it provides superior performance, security, and convergence for lean IT resources connecting to private data centers and public clouds via MPLS, VPNs, and Internet.

8 Units In Stock – Immediate Dispatch. Special Offer: $3500 (Save 8%). PDF Datasheet Available for download.

Product Overview

Cisco 4000 Family ISRs, including the ISR4431, form a Software Defined WAN platform with built-in intelligent network capabilities. Platforms: ISR4461, 4451, 4431, 4351, 4331, 4331-DC, 4321, 4221 & 4221X. Revolutionizes branch WAN with application-aware networking.

Features and Benefits

Platform Architecture

Managing Cisco ISR 4000 Family

Cisco Catalyst SD-WAN

Intelligent software for secure connectivity across WAN links. Dynamically routes traffic based on application/network conditions. Tight control over performance, bandwidth, privacy. ISR4431 optimized for Catalyst SD-WAN: deep packet inspection, app control, DoS prevention, IPS/firewall, SaaS caching, app acceleration. Managed via cloud/on-prem, DNA Essentials/Advantage licenses.

Security Solutions

Services Plane: Branch-in-a-Box

Built-in processing for WAAS, Service Containers/hypervisor for x64 apps. UCS-E servers: 8-core Xeon, 48GB DDR3, RAID storage. NFVIS for VM lifecycle, programmability.

Licensing

DC Power Support

ISR4431 supports internal DC (48-60V), up to 437W no PoE. PoE not with DC.

Operational Cost Reduction

Ordering and Migration

ISR4431/K9: 4 GE, 3 NIM, 1 ISC, 8GB Flash, 2GB data/4GB control DRAM default. Cisco TMP migration. 90-day warranty.

Sustainability and Services

Cisco ESG reporting, WEEE compliance, takeback. Cisco/partner services for planning, optimization. Cisco Capital financing. SMARTnet support.

For full details, refer to Cisco ISR 4000 Data Sheet. Contact sales: 1-800-553-6387.

Specifications

Performance & Capacity (ISR4431 Specific)
Aggregate Throughput (Default)500 Mbps
Aggregate Throughput (Performance License)1 Gbps
Aggregate CEF Only Throughput (Boost License)Over 4Gbps
Interfaces & Ports (ISR4431)
Total onboard WAN or LAN 10/100/1000 ports4
Total onboard WAN or LAN 10Gbps ports-
RJ-45-based ports4
SFP-based ports4
Enhanced service-module slots0
Doublewide service-module slots0
NIM slots3
OIR (all I/O modules)Yes
Onboard ISC slot1
Memory & Storage (ISR4431)
Default memory DDR3 ECC DRAM (data plane)2 GB
Maximum memory DDR3 ECC DRAM (data plane)2 GB
Default memory DDR3 ECC DRAM (control/services plane)4 GB
Maximum memory DDR3 ECC DRAM (control/services plane)16 GB
Default flash memory8 GB
Maximum flash memory32 GB
External USB 2.0 slots (type A)2
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 Specifications (ISR4431)
Power-supply optionsInternal: AC, DC, and PoE
Redundant power supplyInternal: AC, DC, and PoE
AC input voltage100 to 240 VAC autoranging
DC Input Voltage Input Current48 – 60V 12A Max
AC input frequency47 to 63 Hz
AC input current range, AC power supply (maximum)3 to 1.3A
AC input surge current60 A peak and less than 5 Arms per half cycle
Typical power (no modules) (watts)65
Maximum power with AC power supply (watts)250 (no PoE)
Maximum power with DC power supply (watts)437 (no PoE)
Maximum power with PoE power supply (platform only) (watts)500 with PoE redundant 1000 with PoE boost no redundancy
Maximum endpoint PoE power available from PoE power supply (watts)250 W with optional redundancy
Maximum endpoint PoE power capacity with PoE boost (watts)500 W no redundancy
Sizes and Weights (ISR4431)
Dimensions (H x W x D)1.73 x 17.25 x 19.97 in (43.9 x 438.15 x 507.2 mm)
Shipping Box Dimensions (H x W x D)7.88 x 22.25 x 28.75 in (200.2 x 565.1 x 730.25 mm)
Rack height1 Rack Units (1RU)
Rack-mount 19in. (48.3 cm) EIAIncluded
Rack-mount 23in. (58.4 cm) EIAOptional
Wall-mountYes
Weight with AC PS (no modules)18.5 lb (8.4 kg)
Weight with DC PS (no modules)28.8lb (13.1kg)
Weight with AC PS with POE (no modules)18.6 lb (8.4 kg)
Typical weight (fully loaded with modules)22.4 lb (10.2 kg)
Packaging Weight5.9 lb (2.7 kg)
AirflowI/O side to bezel side
MTBF (Hours)512970
Environmental Specifications (ISR4431)
Operating Temperature32 to 104°F (0 to 40°C)
Operating Altitude (China)0 – 6,560 ft. (0 – 2,000 m)
Operating Altitude (Rest of the world)0 – 10,000 ft. (0 – 3,050 m)
Operating Relative humidity5% to 85%
Short-term humidity5% to 90%, not to exceed 0.024 kg water/kg of dry air
Acoustics: Sound pressure (Typical/ maximum)54.3/79.1 dBA
Acoustics: Sound power (Typical/ maximum)57.2/80.8 dBA
Nonoperating Temperature-40 to 158°F (-40 to 70°C)
Nonoperating Relative humidity5% to 95%
Nonoperating Altitude15,584 ft (4750m)
Regulatory and Compliance (ISR4431)
SafetyUL 60950-1 CAN/CSA C22.2 No. 60950-1 EN 60950-1 AS/NZS 60950-1 IEC 60950-1
EMC47 CFR, Part 15 ICES-003 Class A EN55032 Class A CISPR32 Class A AS/NZS CISPR 32 Class A VCCI V-3 CNS 13438 EN 300-386 EN 61000 (Immunity) EN 55024, CISPR 24 KN22, KN24
TelecomTIA-968-B CS-03 ANSI T1.101 ITU-T G.823, G.824 IEEE 802.3 RTTE Directive Homologation requirements vary by country and interface type. For specific country information, refer to the online approvals data base at: https://www.ciscofax.com/
Cisco IOS XE Software Features (ISR4000 Family including ISR4431)
ProtocolsIPv4, IPv6, static routes, RIP/RIPv2, OSPF, EIGRP, BGP, BGP Router Reflector, IS-IS, IGMPv3, PIM SM, PIM SSM, RSVP, CDP, ERSPAN, IPSLA, Call Home, EEM, IKE, ACL, EVC, DHCP, FR, DNS, LISP, OTV, HSRP, RADIUS, AAA, AVC, DVMRP, IPv4-to-IPv6 Multicast, MPLS, Layer 2/3 VPN, IPsec, L2TPv3, BFD, IEEE802.1ag, IEEE802.3ah
EncapsulationsGRE, Ethernet, 802.1q VLAN, PPP, MLPPP, Frame Relay, MLFR (FR.15/FR.16), HDLC, Serial (RS-232, RS-449, X.21, V.35, EIA-530), PPPoE
Traffic managementQoS, CBWFQ, WRED, Hierarchical QoS, PBR, NBAR
Cryptographic AlgorithmsEncryption: DES, 3DES, AES-128/AES-256 (CBC/GCM); Authentication: RSA (748/1024/2048 bit), ECDSA (256/384 bit); Integrity: MD5, SHA, SHA-256/384/512
Feature Bundles (ISR4000)
Application Experience with Voice (AXV)AX + Voice
Voice with Security (VSEC)Voice + Security
Application Experience (AX)IP Base + Security + advanced networking protocols: L2TPv3, BFD, MPLS, VRF, VXLAN (Bandwidth <100Mbps) Application Experience: PfRv3, WAAS with AppNav, NBAR2, AVC, IP SLA Hybrid Cloud Connectivity: LISP, OTV (for Bandwidth <100Mbps), VPLS, EoMPLS Intelligent Web Caching: Akamai Connect
Voice (V)IP Base + Unified Communications: CME, SRST, CUBE
Security (SEC)IP Base + Advanced Security: Zone Based Firewall, IPSec VPN, EZVPN, DMVPN, FlexVPN
Performance-on-Demand Licenses (ISR4431)
FL-44-PERF-K9Increases performance from 500 Mbps to 1 Gbps
Booster Performance Licenses (ISR4431)
FL-4430-BOOST-K9Booster Performance License for 4430 Series Router for up to 3.4 Gbps CEF* (Note: Table lists FL-4430-BOOST-K9 up to 3.4Gbps, aligned with Over 4Gbps in specs)
Ordering Information (ISR4431/K9)
ISR4431/K9ISR 4431 with 4 onboard GE, 3 NIM slots, 1 ISC slot, 8GB Flash Memory default, 2 GB DRAM default (data plane), 4 GB DRAM default (control plane)
Architectural Highlights
Multicore processorsHigh-performance multicore processors support high-speed WAN connections. The data plane uses an emulated Flow Processor (FP) that delivers Application-Specific Integrated Circuit (ASIC)-like performance that does not degrade as services are added.
Embedded IP Security (IPsec) VPN hardware accelerationIncreases scalability. When combined with an optional Cisco IOS XE Software Security license, enables WAN link security and VPN services.
Integrated Gigabit Ethernet portsThe Cisco 4000 Family provides up to six built-in Ethernet ports for WAN or LAN. Depending on platform, Ethernet ports can support Small Form-Factor Pluggable (SFP)-based connectivity as well as RJ-45 connections, enabling fiber or copper connectivity. Optionally, depending on the platform, up to 30W PoE+ can be enabled on two of the built-in front panel Gigabit Ethernet interfaces to provide power to external devices such as 4G/LTE/5G Cellular Gateways. An additional dedicated Gigabit Ethernet port is provided for device management.
USB-based console accessA mini type-B USB console port supports management connectivity when traditional serial ports are not available. Traditional console and auxiliary ports are also available.
Optional integrated power supply for distribution of PoEAn optional upgrade to the internal power supply provides inline power (802.3af-compliant PoE or 802.3at-compliant PoE+) to optional integrated switch modules. Redundant PoE conversion modules provide an additional layer of fault tolerance.
Optional integrated Redundant Power Supply (RPS)For the ISR 4400 Series, power redundancy is available by installing an optional power supply, protecting the network from power failures. Optional PoE boost mode increases total PoE capacity to up to 1000W.
Cisco Enhanced Services Module (SM-X)Each service-module slot offers high data-throughput capability of up to 10 Gbps toward the system and up to 1 Gbps to other module slots. Support for both single- and double-wide service modules provides flexibility in deployment options. An SM-X slot can be converted into a Network Interface Module (NIM) slot using an optional carrier card. Service modules support Online Insertion and Removal (OIR), avoiding network disruption when installing new or replacement modules.
Cisco Network Interface Modules (NIMs)Up to three integrated NIM slots on the Cisco 4000 Family allow for flexible configurations. Each NIM slot offers options of up to two 2Gbps connections. One towards the route processor and one for direct module to module communication. NIMs support OIR. Special NIMs add support Solid-State Drives (SSDs) and Hard Disk Drives (HDDs).
Cisco Integrated Services Card (ISC) slot on motherboardIntegrated Services Card natively supports the new Cisco High-Density Packet Voice Digital Signal Processor Modules (PVDM4s), providing greater-density rich-media voice. Each Integrated Services Card slot connects to the system architecture through an up-to 2-Gbps link. Future modules can be hosted on the Integrated Services Card slot, improving system functions.
Flash memory supportA single flash memory slot is available to support high-speed storage densities, upgradable to up to 32 GB. Two USB type A 2.0 ports provide capabilities for convenient storage.
DRAMFor the ISR 4400 Series, the default control-plane memory is 4 GB, upgradable to 16 GB to provide additional scalability for control-plane features. Data-plane memory is 2 GB, non-upgradable.
NEBS (Network Equipment Building System)The ISR 4461 is NEBS certified to maintain reliable operations in harsh and demanding environments. A NEBS kit is orderable with dual 650W-DC reverse-airflow power supplies and a reverse airflow fan assembly.
Cisco IOS XE Embedded Management
Cisco IOS Embedded Event Manager (EEM)A distributed and customized approach to event detection and recovery. Offers the ability to monitor events and take informational, corrective, or any desired EEM action when the monitored events occur or when a threshold is reached.
Cisco IOS XE IP Service-Level Agreements (IP SLAs)Helps assure the performance of new business-critical IP applications as well as IP services that use data and voice in an IP network.
SNMP, Remote Monitoring (RMON), syslog, NetFlow, IP Flow Information Export (IPFix)Network monitoring and accounting tools.
Sustainability (Table 10)
GeneralInformation on product-material-content laws and regulations
Electronic wasteInformation on electronic waste laws and regulations, including our products, batteries and packaging | WEEE Compliance
TakebackInformation on product takeback and reuse program | Cisco Takeback and Reuse Program
Sustainability InquiriesContact: [email protected]
Environmental specificationsTable 5. Product specifications
Regulatory and complianceTable 5. Product specifications
MTBFTable 5. Product specifications
PowerPower supplies | Table 5. Product specifications
MaterialProduct packaging weight and materials | Contact: [email protected]
Size and WeightsTable 5. Product specifications
Packaging WeightTable 5. Product specifications

Reviews

No reviews yet

Be the first to review this enterprise product.

Warranty

Standard Warranty Policy

All hardware sold by ITMall includes our 3-Year Free Maintenance and 1-Year RMA Replacement Service. Please refer to our Warranty Policy for details.

  • 1-Year Advance Replacement (RMA)
  • 3-Year Free Repair Service
  • Full coverage for functionality defects

Hassle-Free RMA Process

We streamlined the return process to minimize your network downtime. Our engineering team provides pre-return diagnostics to ensure hardware is truly defective.

  • 30-Day satisfaction guarantee return window
  • Automated RMA portal access for instant tracking
  • Restocking fee waived for functionality issues

Certified Engineering Support

Our products are backed by CCIE-certified engineers who provide expert guidance on compatibility, configuration, and troubleshooting at no extra cost.

  • Free pre-sales topology consultation
  • Remote troubleshooting & firmware advice
  • Simulation lab testing before dispatch

Global Logistics & Packaging

We ship to 85+ countries using premium anti-static packaging to ensure safety. Orders placed before 14:00 (GMT+8) are typically dispatched the same day.

  • Double-walled boxes with customer molded foam
  • Blind shipping support for channel partners
  • Real-time tracking via FedEx / DHL / UPS

Resources

FAQ

What is the throughput of the Cisco ISR4431/K9?
Default aggregate throughput: 500 Mbps. With Performance License: 1 Gbps. With Boost License: Over 4 Gbps CEF only.
What interfaces and slots are available on ISR4431?
4 onboard Gigabit Ethernet ports (4 RJ-45, 4 SFP), 3 NIM slots, 1 ISC slot, 0 SM-X slots. Supports OIR.
Does the ISR4431 support redundant power supplies?
Yes, internal redundant AC, DC, and PoE power supplies.
Is Cisco Catalyst SD-WAN supported on ISR4431/K9?
Yes, fully optimized with DNA Essentials/Advantage licenses for application-aware routing, security, and cloud connectivity.
What licensing is required for performance upgrades?
FL-44-PERF-K9 for 1 Gbps, FL-4430-BOOST-K9 for >4 Gbps CEF. HSEC for full crypto throughput.
Is this product Brand New?
Yes, unless clearly marked as "Refurbished", all our products are Factory Sealed (Original New) sourced directly from authorized channels.
What is the warranty period?
We provide a comprehensive 3-Year Warranty on this item. This covers hardware defects and includes advanced replacement.
Do you offer volume discounts?
Yes! For bulk orders or project bids, please click "Quote | Help" to get a custom price proposal from our sales team.
How fast can you ship?
In-stock items ordered before 3 PM EST ship the same day. We offer overnight and 2-day shipping options via FedEx/DHL.

Still have questions?