Cisco ISR4461-V/K9 Integrated Services Router

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Table 1 shows the quick spec.

Model  

ISR4461-V/K9

Aggregate Throughput 1.5Gbps
Total onboard WAN or LAN 10/100/1000 ports 4
RJ-45-based ports 4
SFP-based ports 4
Enhanced service-module slots 3
Doublewide service-module slots 2
NIM slots 3
OIR (all I/O modules) Yes
Onboard ISC slot 1
Dimensions

(H x W x D)

3.5 x 17.25 x 18.5 in

(88.9 x 438.15 x 469.9 mm)

Rack height 2 Rack Units (2RU)

The Modules, Cards, Licenses

Table 2 shows the recommended products.

Model Description

MEM-4460-8G

8G DRAM (1 DIMM) for Cisco ISR 4460

MEM-4460-16G

16G DRAM (1 DIMM) for Cisco ISR 4461

MEM-4460-32G

32G DRAM (1 DIMM) for Cisco ISR 4460

MEM-FLSH-8GU16G

8G to 16G Flash Memory Upgrade for Cisco ISR 4400

MEM-FLSH-8GU32G

8G to 32G Flash Memory Upgrade for Cisco ISR 4460

NIM-1MFT-T1/E1

Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module

NIM-2MFT-T1/E1

2 port Multi-flex Trunk Voice/Clear-channel Data T1/E1 Module

NIM-4MFT-T1/E1

Voice/WAN Module (4-port T1/E1)

NIM-8MFT-T1/E1

Cisco Fourth-Generation Multiflex Trunk Voice and WAN network interface module

NIM-1CE1T1-PRI

Cisco Multiflex Trunk Voice and WAN network interface module

NIM-2CE1T1-PRI

Cisco Multiflex Trunk Voice and WAN network interface module

FL-44-HSEC-K9

U.S. Export Restriction Compliance license for 4400 series

Compare to Similar Items

Table 3 shows the comparison.

Model

ISR4461/K9

ISR4461-V/K9

Bundle

None

Voice Bundle

Aggregate Throughput

1.5Gbps

1.5Gbps

Total onboard WAN or LAN 10/100/1000 ports

4

4

RJ-45-based ports

4

4

SFP-based ports

4

4

Enhanced service-module slots

3

3

Doublewide service-module slots

2

2

NIM slots

3

3

OIR (all I/O modules)

Yes

Yes

Onboard ISC slot

1

1

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ISR4461-V/K9 Specification

Bundle Voice Bundle Aggregate Throughput 1.5Gbps Total onboard WAN or LAN 10/100/1000 ports 4 RJ-45-based ports 4 SFP-based ports 4 Enhanced service-module slots 3 Doublewide service-module slots 2 NIM slots 3 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) NA Maximum memory DDR3 ECC DRAM (Combined control/services/data planes) NA Default memory DDR3 ECC DRAM (data plane) 4 GB Maximum memory DDR3 ECC DRAM (data plane) 4 GB Default memory DDR3 ECC DRAM (control/services plane) 8 GB Maximum memory DDR3 ECC DRAM (control/services plane) 32 GB Default flash memory 8 GB Maximum flash memory 32 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-supply options Internal: AC, DC and PoE Redundant power supply Internal: AC, DC and PoE

Power Specifications

AC input voltage 100 to 240 VAC auto ranging AC input frequency 47 to 63 Hz AC input current range, AC power supply (maximum) 7.1 to 3.0A AC input surge current 60 A peak and less than 5 Arms per half cycle Typical power (no modules) (watts) - Maximum power with AC power supply (watts) 1000W (no PoE) Maximum power with PoE power supply (platform only) (watts) 1000 with PoE redundant 1450 with PoE boost no redundancy Maximum endpoint PoE power available from PoE power supply (watts) 500 W with optional redundancy Maximum endpoint PoE power capacity with PoE boost (watts) 950 W no redundancy

Sizes and Weights

Dimensions (H x W x D) 3.5 x 17.25 x 18.5 in 88.9 x 438.15 x 469.9 mm) External Power Supply Dimensions (H x W x D) N/A Rack height 2 Rack Units (2RU) Rack-mount 19in. (48.3 cm) EIA Included Rack-mount 23in. (58.4 cm) EIA Optional Wall-mount No Weight with 1, 450-WAC power supply (no modules) - Weight with 1 1,000-WAC power supply+ 1 PoE power module (no other modules) - Weight with AC PS (no modules) - Weight with AC PS with POE (no modules) - Typical weight (fully loaded with modules) - Airflow I/O side to bezel side MTBF (Hours) 480770

Environmental Specifications

Operating Conditions

Temperature 32 to 104ºF (0 to 40ºC) Altitude (China) 0 – 6,560 ft. (0 – 2,000 m) Altitude (Rest of the world) 0 – 10,000 ft. (0 – 3,050 m) Relative humidity 5% to 85% Short-term humidity 5% to 90%, not to exceed 0.024 kg water/kg of dry air Acoustics: Sound pressure (Typical/maximum) 50.6/73.1 dBA Acoustics: Sound power (Typical/maximum) 58.2/78.8 dBA

Nonoperating Conditions

Temperature -40 to 158ºF (-40 to 70ºC) Relative humidity 5% to 95% Altitude 15,584 ft (4750m)

Regulatory and Compliance

Safety UL 60950-1 CAN/CSA C22.2 No. 60950-1 EN 60950-1 AS/NZS 60950-1 IEC 60950-1 EMC 47 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 Telecom T1 IC CS-03:2004 TIA-968-B:2009 HKTA 2028:2010 HKTA 2017:2010 HKTA 2015: 2006 G.703:2001 ID0002:2007 IS6100:2004 DSPR Gray Book:2000 DSPR Technical Condition: 2004 E1 AS/ACIF S016: 2001 AS/ACIF S038: 2001 G.703:2001 TBR 4:1995 TBR 12:1993 TBR 13:1996 RRA 2009-38 (RRL 2005-96) IDA TS DLCN:2011 IDA TS ISDN PRA:2005 IS6100: 2004 PTC 220:2008 Ethernet IEEE 802.3 ANSA X3.263

Cisco IOS XE Software

Protocols IPv4, IPv6, static routes, Routing Information Protocol Versions 1 and 2 (RIP and RIPv2), Open Shortest Path First (OSPF), Enhanced Interior Gateway Routing Protocol (EIGRP), Border Gateway Protocol (BGP), BGP Router Reflector, Intermediate System-to-Intermediate System (IS-IS), Multicast Internet Group Management Protocol Version 3 (IGMPv3), Protocol Independent Multicast sparse mode (PIM SM), PIM Source-Specific Multicast (SSM), Resource Reservation Protocol (RSVP), Cisco Discovery Protocol, Encapsulated Remote Switched Port Analyzer (ERSPAN), Cisco IOS IP Service-Level Agreements (IPSLA), Call Home, Cisco IOS Embedded Event Manager (EEM), Internet Key Exchange (IKE), access control lists (ACL), Ethernet Virtual Connections (EVC), Dynamic Host Configuration Protocol (DHCP), Frame Relay (FR), DNS, Locator ID Separation Protocol (LISP), Overlay Transport Virtualization (OTV), Hot Standby Router Protocol (HSRP), RADIUS, authentication, authorization, and accounting (AAA), Application Visibility and Control (AVC), Distance Vector Multicast Routing Protocol (DVMRP), IPv4-to-IPv6 Multicast, MPLS, Layer 2 and Layer 3 VPN, IPsec, Layer 2 Tunneling Protocol Version 3 (L2TPv3), Bidirectional Forwarding Detection (BFD), IEEE 802.1ag, and IEEE 802.3ah Encapsulations Generic routing encapsulation (GRE), Ethernet, 802.1q VLAN, Point-to-Point Protocol (PPP), Multilink Point-to-Point Protocol (MLPPP), Frame Relay, Multilink Frame Relay (MLFR) (FR.15 and FR.16), High-Level Data Link Control (HDLC), Serial (RS-232, RS-449, X.21, V.35, and EIA-530), and PPP over Ethernet (PPPoE) Traffic management QoS, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Hierarchical QoS, Policy-Based Routing (PBR), Performance Routing (PfR), and Network-Based Application Recognition (NBAR) Cryptographic algorithms Encryption: DES, 3DES, AES-128 or AES-256 (in CBC and GCM modes); Authentication: RSA (748/1024/2048 bit), ECDSA (256/384 bit); Integrity: MD5, SHA, SHA-256, SHA-384, SHA-512

Frequently Asked Questions

The ISR4461-V/K9 is a Cisco 4000 Series Integrated Services Router that includes a Voice Bundle (V) license, combining enterprise routing with unified communications capabilities. It is designed for secure WAN connectivity, branch networking, and voice-enabled enterprise environments requiring reliable performance and scalability.
The “V” in ISR4461-V/K9 stands for Voice Bundle, which enables voice and unified communications features on top of enterprise routing. This bundle is commonly chosen by organizations that want routing plus integrated voice services in a single platform.
The ISR4461-V/K9 is commonly deployed for: Enterprise branch WAN routing Voice-enabled branch networks MPLS and Internet WAN connectivity Hybrid cloud communication Secure enterprise traffic routing It is popular in enterprises that combine data and voice traffic on one router.
The ISR4461-V/K9 supports up to 1.5 Gbps aggregate throughput, making it suitable for medium-to-large enterprise branch sites needing stable WAN performance and voice service integration.
Yes. It is widely used in enterprise branch deployments because it combines: High WAN routing performance Voice-enabled networking Modular expansion options Secure enterprise connectivity This makes it ideal for regional offices or communication-heavy branches.
This model remains popular because: Many organizations still run ISR 4000 infrastructure Voice bundle reduces licensing complexity Strong branch performance and reliability Used in WAN modernization projects These factors continue to drive enterprise search demand.
You can purchase genuine Cisco ISR4461-V/K9 routers from trusted enterprise IT suppliers like Netseg, offering: Fast delivery to UAE & KSA Genuine Cisco enterprise hardware Professional pre-sales consultation Business-level technical support
The main difference is licensing: ISR4461-V/K9 → Voice bundle (UC/voice-focused) ISR4461-SEC/K9 → Security bundle (VPN & security features) Organizations select based on whether voice services or enhanced security licensing is the main requirement.
Cisco has announced lifecycle milestones for the ISR4461 family: End-of-Sale: January 20, 2025 End-of-Support: January 31, 2030 This is a highly searched topic because many enterprises plan upgrades based on lifecycle timelines.
Yes. ISR 4000 Series routers can run Cisco IOS XE and support SD-WAN functionality, enabling centralized policy management, application-aware routing, and secure WAN optimization for modern enterprise networks.
Yes. The Voice Bundle license is designed to support enterprise voice deployments, allowing businesses to consolidate voice and data services on a single router platform.
Typical onboard interfaces include: 4 × Gigabit Ethernet RJ-45 ports 4 × SFP-based ports 3 × NIM expansion slots 3 × enhanced service module slots This modular architecture allows enterprises to expand WAN and voice services as needed.

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