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Cisco ISR4431/K9 4x 1GB RJ-45 4x 1GB SFP 3x NIM Slot 1x ISC Slot Router

Cisco ISR4431/K9 4x 1GB RJ-45 4x 1GB SFP 3x NIM Slot 1x ISC Slot Router

$ 306.99
$ 264.99
Only 2 remaining
In stock means that we have the product available to meet your delivery commitment. If it is on the web site, it is available for sale and we can ship it that day.
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Cutoff Ground / 3 day / 2 day - 2pm PT, Cutoff Overnight - 5pm PT. Overnight orders after 4pm PT require approval. Call 800-430-6950 to confirm overnight orders after 4pm PT.
Condition: Seller refurbished
Pre-owned, tested by qualified techs, working, reset-to-factory default, grade A condition, and parts needed for normal functions are included (as described in the listing).
Warranty: 365 days
Warranty coverage period
SKU: NSH-6266
UPC: 882658710537


The Cisco ISR4431/K9 router is a versatile networking device with multiple features for efficient data handling. Its 4x 1GB RJ-45 and 4x 1GB SFP interfaces provide connectivity options for various network setups. With its three NIM slots, the router allows easy expansion and customization.

Designed to meet growing business needs, this router also includes an ISC slot for connecting optional integrated service controllers. It provides enhanced security measures like encryption protocols and firewall capabilities to ensure data integrity while facilitating secure network communication.

Cisco ISR4431/K9: ISR 4431 with 4x onboard GE, 3x NIM slots, 1x ISC slot, 8GB Flash Memory default, 2GB DRAM default (data plane), 4GB DRAM default (control plane).


  • Network Ports : 4x 1 Gigabit Ethernet RJ-45
  • Uplink Ports : 4x 1 Gigabit Ethernet SFP
  • Management Ports : 1x RJ-45 Serial Console, 1x RJ-45 Management, 1x Mini-USB Type B Console, 1x AUX, 2x USB 2.0
  • Module Slots and Options : 3x NIM (EHWIC) slots, 1x Onboard ISC slot - modules not included.
  • DRAM : 4 GB (installed) / 16 GB (max)
  • Flash : 8 GB (installed) / 32 GB (max)
  • Power Supplies : 1x Internal AC Power Supply
  • Fan : 1 x ACS-4430-FANASSY Included
  • SFP Transceiver Modules : Not Included
  • Rack Mounts : Included (1-RU)
  • Model Number : ISR4431/K9
  • Part Number : ISR4431/K9, ISR4431/K9=, ISR4431/K9-WS
  • Condition : Seller refurbished


  • One (1) Seller Refurbished Cisco ISR4431/K9 4x 1GB RJ-45 4x 1GB SFP 3x NIM Slot 1x ISC Slot Router as described above
  • One (1) Power Cord Included
  • One (1) Set of Rack Mount Brackets Included

Not Included

  • Manuals or product brochures are not included. Software or Firmware DVDs or CDs are not included
    Product information and installation instructions may be found on the manufacturer's website or the web. Software or firmware updates may be available through the manufacturer's website
  • Transceiver Modules Not Included
  • Network Modules Not Included