Cisco FPR4K-XNM-2X400G Full Official Product Description

1. Product Overview & Naming Definition

Official Full Name

Naming Breakdown

1. FPR4K: Platform identifier exclusively for Cisco Secure Firewall 4200 series chassis
2. XNM: Extended Fail-to-Wire (FTW) network module with native Layer 1 physical hardware bypass for resilient inline security deployment
3. 2X400G: Two independent multi-rate QSFP-DD ports, supporting 400G / 200G / 100G / 40G full-duplex Ethernet per port
4. Suffix=denotes field-replaceable spare unit

Core Positioning

2. Chassis & Software Compatibility

Supported Hardware Platforms

• All Cisco Secure Firewall 4200 series appliances (FPR4210, FPR4215, FPR4225, FPR4245)
• Installable into front-panel dedicated network module slots NM-2 and NM-3 of 4200 chassis
• Single-wide form factor; supports hot-swap replacement only with identical module typeCisco

Mandatory Minimum Software Versions

• Firepower Threat Defense (FTD): Minimum release 7.6
• ASA Firewall OS: Minimum release 9.22.1
• FXOS Chassis Manager firmware must be upgraded to matched compatible release to fully recognize and activate all module hardware featuresCisco

Hot-Swap Restrictions

• Same-model module swap: Hot-swap supported; all ports must be administratively shut down before extraction
• Cross-model module replacement: Full chassis reboot required for hardware initializationCisco

3. Port Layout & Multi-Rate Transceiver Specifications

Front Panel Port Layout

• Port numbering rule: Left port = Ethernet X/1, Right port = Ethernet X/2
• The two ports form a single dedicated fail-to-wire bypass pair controlled by integrated physical-layer optical switching components

Multi-Rate Transceiver Compatibility

1. 400G Ethernet: QSFP-DD SR4, FR4, DR4, LR4 optical transceivers, 400G AOC / copper direct attach cables
2. 200G Ethernet: QSFP56 SR4, FR4, SL4 transceivers
3. 100G Ethernet: QSFP28 SR4, LR4, DR, FR transceivers
4. 40G Ethernet: QSFP+ SR4, LR4 transceivers

• Supported breakout function: Each 400G port can be split via certified breakout cables into multiple independent lower-speed sub-interfaces (4×100G, 8×50G, 16×25G)
• Only Cisco-certified optical transceivers enable full hardware security acceleration features; unapproved third-party optics trigger hardware alarm logsCisco.

Native Hardware Fail-to-Wire (FTW) Bypass Feature

• Automatic traffic forwarding between paired ports upon chassis power loss, critical system crash, or security software failure
• Bypass operation runs purely at physical layer without CPU or firmware intervention, eliminating total network outage risks for inline security deployments
• Real-time per-port link/activity LED indicators display port operational state for rapid fault diagnosis

4. Performance & Electrical Specifications

Bandwidth & Throughput Metrics

• Non-blocking full-duplex total module aggregate bandwidth: 800 Gbps bidirectional
• Hardware-accelerated NGFW/IPS threat inspection throughput: Up to 720 Gbps with full Snort 3 IPS, AVC application visibility, AMP malware protection, and URL filtering enabled
• TLS 1.3 decryption capacity: Up to 52,000 sessions per second
• Maximum VXLAN tunnel capacity: 1.5 million tunnels for cloud virtual workload segmentation

Latency & Packet Buffer

• Port-to-port forwarding latency under bypass mode: <1.5 μs
• Full inspection latency (IPS + IPsec AES-256 encryption active): <130 μs
• 512MB shared dynamic allocation packet buffer to eliminate packet drops during high-traffic microbursts

Power Consumption

Environmental Operating Parameters

• Operating temperature range: 0°C to 40°C (32°F – 104°F); throughput performance derates 1% per °C above 35°C
• Operating relative humidity: 10% – 85% non-condensing
• Storage & transit temperature range: -40°C to 70°C (-40°F – 158°F)
• NEBS Level 3 certified for carrier-grade telecom network deployments

5. Integrated Security Acceleration & Core Functional Features

1. Hardware Bypass Resilience: One fully independent fail-open 400G port pair to maintain network connectivity during appliance power failure or software crash
2. Quad-Rate Multi-Media & Breakout Support: Flexible mixed 40G/100G/200G/400G fiber link deployment, plus breakout capability for multi-speed 25G/50G/100G sub-interface aggregation
3. Line-Rate Encryption Offload: Hardware-accelerated AES-256-GCM IPsec VPN encryption/decryption, plus MACsec 256-AEAD link encryption running at full port line rate
4. Encrypted Traffic Analytics (ETA): Built-in acceleration for TLS 1.0/1.1/1.2/1.3 encrypted traffic inspection without full packet decryption, meeting HIPAA, PCI-DSS compliance requirements
5. Comprehensive Traffic Inspection Acceleration: ASIC offloading for Snort 3 IPS deep packet inspection, AVC full application identification, NetFlow v9 traffic sampling, and QoS traffic queuing
6. Multi-Context Virtual Firewall Support: Fully compatible with multi-context security virtualization to isolate independent tenant network traffic for managed security service providers
7. Real-Time Status LED Indicators: Per-port link/activity LED indicators for intuitive real-time hardware fault troubleshooting

6. Typical Enterprise & Service Provider Deployment Use Cases

1. Data Center Inline Leaf-Spine Security: Deploy inline between leaf and spine data center switches to enforce granular security policies for virtual machine, Kubernetes, and ACI cloud workloads, with hardware bypass to avoid critical data center connectivity outages
2. Ultra-High-Speed Internet Edge Security Aggregation: Consolidate multi-hundred-gigabit ISP fiber uplinks on 400G ports for unified internet perimeter threat defense
3. 5G Telecom Service Provider Core Edge Security: Secure 5G UPF user plane network nodes, inspect GTP-U tunnel traffic to mitigate IoT botnet, SIP DDoS and malicious mobile data threats
4. Compliance-Focused Encrypted Traffic Monitoring (Finance/Healthcare): Run line-rate TLS 1.3 encrypted traffic analytics to monitor payment gateway, electronic medical record encrypted traffic while satisfying PCI-DSS and HIPAA regulatory audit requirements
5. Hyperscale Cloud Interconnection Security: Secure cross-cloud direct connect links between public cloud providers and on-premises data centers, leveraging fail-open bypass to preserve critical cross-cloud traffic during firewall maintenance or faults

7. Global Regulatory & Certification Compliance

1. Electrical Safety Standards: UL 60950-1, CSA C22.2 No.60950-1, IEC/EN 60950-1
2. Laser Safety Certification: IEC/EN 60825 for QSFP-DD optical transceivers
3. EMC & EMI Electromagnetic Compatibility: CE Mark, FCC Part 15 Class A, ICES-003 Class A, VCCI Class A, CISPR 22 Class A, CISPR 24, full EN 61000 series ESD, surge, radiated and conducted immunity compliance
4. Telecom Carrier Industry Standards: NEBS Level 3 (GR-63-Core environmental protection, GR-1089-Core EMC and safety specifications)
5. Cryptography Compliance: Compatible with FIPS 140-2 validated Firepower 4200 chassis crypto modules for government and regulated industry deployments
6. Environmental Directives: EU RoHS hazardous substance restriction compliant, EU WEEE waste electrical and electronic equipment recycling directive compliant

8. Standard Factory Packaging Contents

1. FPR4K-XNM-2X400G 2-port quad-rate 40/100/200/400G QSFP-DD Fail-to-Wire network module main unit
2. Captive installation screw and integrated front panel extraction handle for easy chassis insertion/removal
3. Blank filler panels for unused QSFP-DD optical slots
4. ESD anti-static wrist strap for safe hardware maintenance operations
5. Hardware installation quick start guide (covers chassis rack installation, module hot-swap procedures, LED status troubleshooting, and transceiver compatibility guidance)
6. Global regulatory compliance certification documentation packet

Supplementary UNSPSC Classification Code

Standard Hardware Warranty Information