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by Cisco
Product Line: Cisco Integrated Services Routers
Product Type: Router
Sold out
Original price $0.00 - Original price $4,145.00
Original price
$0.00 - $4,145.00
Current price $0.00
Title: Surplus

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Product Description

The ISR4321VK9 Cisco integrates voice capabilities and offers an aggregate throughput of 50 Mbps to 100 Mbps, suitable for scalable voice and data communication. It is equipped with two 10/100/1000 Ethernet ports, one SFP port, and supports up to 8 GB DDR3 memory, enhancing its performance for various networking tasks. Additionally, the router provides flexibility through two Network Interface Module (NIM) slots, one Internal Service Module (ISM) slot, and enhanced power options with a maximum output of 260 W with PoE, catering to a wide range of power requirements.

Key Feature for the ISR4321VK9

  • What is the aggregate throughput range of this networking hardware?
    The aggregate throughput range is 50 Mbps to 100 Mbps.
  • How many Total Onboard WAN or LAN ports does the device feature?
    The device offers 2 10/100/1000 ports.
  • Does it support Voice Bundle?
    Yes, the device supports Voice Bundle.
  • What are the memory specifications?
    The device comes with 4 GB (Default) / 8 GB (Maximum) DDR3 memory.
  • How many RJ-45 and SFP ports are available?
    There are 2 RJ-45 ports and 1 SFP port.
  • What is the maximum power consumption with an AC power supply?
    Maximum power consumption with an AC power supply is 125 W.
  • Are NIM slots available on this device?
    Yes, the device includes 2 NIM slots.
  • What are the flash memory specs?
    The flash memory is 4 GB (Default) / 8 GB (Maximum).
  • Does it have OIR support?
    Yes, OIR support is available.
  • What is the size dimensions of the device?
    Height: 44.55 mm, Width: 369.57 mm, Depth: 294.64 mm.

Product Review

The Cisco ISR4321VK9 offers a scalable throughput from 50 Mbps to 100 Mbps, allowing for flexible network performance tuning based on demand. However, its limitation to 2 RJ-45 ports and a single SFP port may restrict options for direct, high-speed connections in more complex network setups. Additionally, the router supports upgradable memory and flash memory up to 8 GB, enhancing its capability to handle advanced network operations and services.


The Cisco ISR4321VK9 integrates advanced technology to deliver high performance in routing, security, and voice services, suitable for small to medium-sized businesses and enterprise branch offices. This model is part of the ISR 4000 series, known for its scalability and flexibility in supporting a wide range of applications. At its core, the ISR4321VK9 offers an aggregate throughput of 50 Mbps to 100 Mbps, ensuring efficient data handling for both incoming and outgoing traffic. This throughput capacity makes it an ideal solution for organizations requiring reliable connectivity for mission-critical applications. The device is equipped with a comprehensive set of ports and slots to accommodate various networking needs: - Two 10/100/1000 onboard WAN or LAN ports provide high-speed connectivity and support for a wide range of network infrastructures. - Two RJ-45 ports enhance connectivity options, allowing for the integration of additional devices without the need for complex configurations. - A single SFP port offers flexibility for fiber connectivity, supporting longer-distance connections that are often required in enterprise environments. - Two Network Interface Module (NIM) slots enable the addition of various modules, such as WAN interfaces, to expand the device's capabilities. - An onboard ISC slot allows for the integration of a wide range of internal service cards, further enhancing the router's functionality. In terms of memory and storage, the ISR4321VK9 comes with 4 GB of DDR3 memory as standard, which can be upgraded to 8 GB to support more intensive applications and higher traffic volumes. Similarly, flash memory starts at 4 GB and can also be expanded to 8 GB, providing ample space for the operating system and configuration files. The device supports Online Insertion and Removal (OIR), allowing for upgrades and module changes without disrupting network operations. For external connectivity, it includes one USB 2.0 Type A slot and a USB console port (Type B Mini), facilitating easy management and file transfers. Power efficiency is another key feature of the ISR4321VK9, with a typical power consumption of 36 W and a maximum power capacity of 125 W with an AC power supply. For environments utilizing Power over Ethernet (PoE), the device can support up to 260 W with a PoE power supply, accommodating a wide range of PoE devices. Physically, the router is compact, with dimensions that allow for easy installation in a variety of settings. It measures 44.55 mm in height, 369.57 mm in width, and 294.64 mm in depth, making it suitable for rack mounting in standard equipment racks. In summary, the Cisco ISR4321VK9 is a versatile and efficient networking solution that provides: - High-speed connectivity and flexible port options. - Scalable memory and storage capacities. - Low power consumption with support for PoE. Its comprehensive feature set ensures that businesses can secure, scale, and manage their networks effectively, meeting the demands of modern network infrastructures.


Item Number and Producer Cisco ISR4321VK9
Voice Capabilities Supported
Data Rate Range 50 Mbps to 100 Mbps
Integrated WAN or LAN Ports 2 (Gigabit Ethernet)
Gigabit Ethernet Ports 2
Small Form-factor Pluggable (SFP) Ports 1
Network Interface Modules (NIM) Slots 2
Internal Service Card (ISC) Slot 1
RAM 4 GB (Standard) / 8 GB (Max) DDR3
Storage Memory 4 GB (Standard) / 8 GB (Max)
Service Module Slots for Expansion 0
Online Insertion and Removal (OIR) Available
USB 2.0 Ports (Type A) 1
Mini Type-B USB Console Port 1
Console Port for Management (RJ-45) 1
Auxiliary Port (RJ-45) 1
Power Input Voltage 100 to 240 VAC
Frequency of AC Input 47 to 63 Hz
Current Range for AC Input 1.5 to 0.6 A
Surge Current Capacity 90 A
Standard Power Consumption 36 W
Peak Power with Standard AC Supply 125 W
Maximum Power with PoE Supply 260 W
Unit Height 44.55 mm
Unit Width 369.57 mm
Unit Depth 294.64 mm

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