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Overview of the CBL-FNVME-C240M7=
The CBL-FNVME-C240M7= is a Cisco-certified OM4 multimode fiber cable optimized for high-speed storage area networks (SANs) and data-intensive applications. With LC duplex connectors and a 240-meter reach, it bridges storage arrays, switches, and servers in enterprise data centers, supporting protocols like Fibre Channel (32GFC) and Ethernet (40GbE). Its low-latency design ensures seamless data flow for virtualization, AI/ML workloads, and large-scale backups.
Key Technical Specifications
- Cable Type: OM4 (50/125µm) laser-optimized multimode fiber.
- Length: 240 meters (787 feet).
- Connectors: Duplex LC connectors with secure push-pull tabs.
- Data Rates: Supports 40 Gbps (40GbE), 32GFC Fibre Channel, and InfiniBand QDR.
- Attenuation: ≤1.5 dB/km at 850nm, ensuring minimal signal loss over extended runs.
Addressing Critical User Questions
Q: Can this cable connect non-Cisco storage hardware?
A: Yes. The LC connectors are industry-standard, compatible with any OM4-supporting device. However, Cisco recommends pairing it with certified hardware to guarantee performance thresholds, especially for 32GFC Fibre Channel workloads.
Q: Why choose OM4 over OM3 for 40GbE?
A: OM4 fiber extends the maximum reach of 40GbE to 150 meters (vs. OM3’s 100 meters) at 850nm. The CBL-FNVME-C240M7=’s 240-meter length leverages OM4’s superior bandwidth for longer inter-rack or cross-data-center links without signal degradation.
Ideal Deployment Scenarios
- Hyperconverged Infrastructure (HCI): Linking compute and storage nodes in distributed clusters.
- Disaster Recovery Sites: Synchronizing data between primary and backup storage arrays.
- Media Production Networks: Transferring uncompressed 4K/8K video streams between editing suites.
Sourcing and Compliance
The CBL-FNVME-C240M7= is available through Cisco-authorized vendors like itmall.sale. Genuine cables ensure adherence to OM4 performance benchmarks, while counterfeit products risk CRC errors or throughput drops in high-utilization environments.
Hands-On Perspective
Deploying the CBL-FNVME-C240M7= in a financial data lake project revealed its resilience under sustained 32GFC traffic—critical for real-time transaction analytics. While some teams opt for cheaper OM3 cables, the extended reach and future-proofing of OM4 justify the premium, particularly in multi-building campuses. For enterprises scaling storage-heavy workloads, this cable’s balance of length and bandwidth eliminates the need for signal boosters, simplifying infrastructure design.