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CISCO ISR4331/K9 4000 Integrated Service Router

$100.30 (Ex. GST)

In stock: 11

CISCO ISR4331/K9 4000 Integrated Service Router

Model / Part Number: ISR4331/K9

Series: Cisco 4000 Series Integrated Services Router (ISR 4331)

Form Factor: 1RU rack-mountable

Throughput: Up to 2 Gbps (aggregate routing); up to 1 Gbps encrypted (IPsec) with performance license

Onboard Ports: 3 × 10/100/1000 RJ-45

Expansion Slots: 2 × NIM + 1 × SM-X + 1 × ISM

Power Supplies: Default single 250W AC; optional dual redundant

Fans: Redundant hot-swap (front-to-back airflow)

Status (2025–2026): Legacy / End-of-Sale / End-of-Support – Cisco ended support for ISR 4000 series years ago; still widely used in branch networks

Market Availability: Refurbished or used pulls from decommissioned branch offices

Common Sources: eBay, Amazon (renewed), surplus networking resellers (Renewtech, ServerSupply, NTC-Tech)

Typical Price Range: $400–$1,200 (refurbished, depending on condition, licenses, and modules)

Processor: Multi-core CPU (Cisco QuantumFlow Processor)

DRAM: 4 GB default (expandable to 16 GB)

Flash: 8 GB default (expandable)

Onboard LAN Ports: 3 × 10/100/1000 RJ-45

Expansion Slots:
2 × NIM (e.g., NIM-2MFT-T1/E1, NIM-4G-LTE, NIM-ES2-4, NIM-1GE-CU-SFP)
1 × SM-X slot (e.g., SM-X-72FXS/DID voice module)
1 × ISM slot (e.g., ISM-VPN-3DES/3DES-AES)

Maximum Throughput: 2 Gbps (aggregate routing); 1 Gbps IPsec VPN (with boost license)

Power Consumption: ≈150–250W typical (varies with modules)

Redundant Power: Optional dual 250W AC hot-swap PSUs

Cooling: Redundant hot-swap fans (front-to-back airflow)

Management: Cisco IOS-XE CLI, web GUI (limited), Cisco Prime Infrastructure, DNA Center (limited support)

Operating Temperature: 0°C to 40°C (32°F to 104°F)

Dimensions: 1RU – 43.8 cm (W) × 43.8 cm (D) × 4.4 cm (H)

Weight: ≈8–12 kg (depending on modules)

CISCO ISR4331/K9 4000 Integrated Service Router 2nd :: Alt () Other //

CISCO ISR4331/K9 4000 Integrated Service Router 2nd :: Alt () Other //

$100.30 (Ex. GST)

$100.30 (Ex. GST)

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