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FET-40G-C
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- 40G Fabric Extender Transceiver Cisco Compatible
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FET-40G-C Overview
FET-40G-C is a high-performance QSFP+ transceiver module engineered to deliver 40G data rates over fiber, featuring LC duplex connectors and optimized for long-range transmission up to 10 km on single-mode fiber. Designed with essential protocols like Ethernet and Fibre Channel in mind, it offers a compact form factor that meets modern data center, enterprise, and telecom network requirements.
Engineered for demanding network environments, FET-40G-C provides reliable, low-latency performance while conforming to strict physical dimensions and operating conditions. Its precise design—featuring standardized dimensions, a 3.3V input voltage, and an operating temperature range from 0 to 70°C—ensures seamless compatibility with leading networking platforms including Cisco, Juniper, Huawei, and Arista.
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FET-40G-C Specifications
| Product Type | Transceiver |
| Form Factor | QSFP+ |
| Data Rate | 40G |
| Connector Type | LC |
| Wavelength | 1310 nm |
| Transmission Distance | Long-Range |
| Fiber Type | Single-mode |
| Max Distance | 10 km |
| Supported Protocols | Ethernet, Fibre Channel |
| Network Interface | Fiber |
| Power Consumption | 3.8 W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista |
| Product Name | FET-40G-C |
| Height | 0.73 inches |
| Width | 2.85 inches |
| Depth | 1.48 inches |
| Weight | 0.11 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 10G | 10G | 1G | 40G | 10G |
| Depth | N/A | N/A | 1.21 inches | 1.48 inches | 0.79 inches |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | XFP | XFP | SFP | QSFP+ | SFP+ |
| Height | N/A | N/A | 0.39 inches | 0.73 inches | 0.55 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 10 km | 80 km | 20 km | 10 km | 10 km |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 3.2W | N/A | 2.5 W | 3.8 W | 2.5 W |
| Product Name | XFP-STM64-LX-SM1310 | CWDM-XFP10G-1611 | GLC-FE-100BX-U-C | FET-40G-C | 01-SSC-9791-C |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet, Fibre Channel | Ethernet, Fibre Channel |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Long-Range | Short-Range |
| Wavelength | 1310nm | 1611 nm | 1490 nm (TX) / 1310 nm (RX) | 1310 nm | 1310 nm |
| Weight | N/A | N/A | 0.08 lbs | 0.11 lbs | 0.06 lbs |
| Width | N/A | N/A | 0.87 inches | 2.85 inches | 0.37 inches |
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Questions & Answers
Q
What is the FET-40G-C 40G Fabric Extender Transceiver Cisco Compatible?
A
The FET-40G-C is a Cisco-compatible QSFP+ transceiver designed for 40 GbE fabric extension over multimode fiber, delivering high-density, low-latency connectivity in data center networks.
Q
Is the FET-40G-C transceiver compatible with Cisco Nexus and Catalyst switches?
A
Yes. The FET-40G-C is fully interoperable with Cisco Nexus and Catalyst series switches, supporting native 40 GbE QSFP+ ports without firmware upgrades or vendor locks.
Q
What form factor does the FET-40G-C use?
A
The FET-40G-C uses the industry-standard QSFP+ (Quad Small Form-Factor Pluggable Plus) form factor in compliance with the SFF-8436 specification.
Q
Which connector interface does the FET-40G-C require?
A
It requires a 12-fiber MPO/MTP connector, supporting parallel multimode fiber links for 40 GbE transmission.
Q
What wavelength does the FET-40G-C operate on?
A
The transceiver operates at an 850 nm wavelength, optimized for OM3 and OM4 multimode fiber applications.
Q
What is the maximum transmission distance of the FET-40G-C?
A
The FET-40G-C supports up to 100 m on OM3 fiber and up to 150 m on OM4 fiber at 40 GbE data rates.
Q
What is the typical power consumption of the FET-40G-C?
A
The transceiver consumes less than 3.5 W under full load, ensuring energy-efficient operation in high-density environments.
Q
What operating temperature range does the FET-40G-C support?
A
The FET-40G-C operates reliably in a temperature range from 0 °C to 70 °C (extended industrial range available on request).
Q
Is the FET-40G-C transceiver hot-swappable?
A
Yes. The QSFP+ design allows hot-plug insertion and removal without powering down the host switch or disrupting other links.
Q
How do I install the FET-40G-C in my switch?
A
First, insert the transceiver into an empty QSFP+ slot until it latches. Next, connect the MPO/MTP fiber cable and verify link status via the switch CLI or GUI.
Q
What data center applications does the FET-40G-C support?
A
It supports leaf-spine architectures, FEX uplinks, server interconnects, high-performance computing (HPC) clusters, and storage area networks (SANs).
Q
What warranty is provided with the FET-40G-C?
A
The product includes a one-year limited warranty covering manufacturing defects, with options for extended coverage and advanced replacement.
Q
Does the FET-40G-C comply with industry standards?
A
Yes. It meets IEEE 802.3ba for 40 GbE, SFF-8436 QSFP+ MSA, and RoHS 6/6 environmental standards.
Q
Does the FET-40G-C support digital diagnostics monitoring (DDM)?
A
Yes. The transceiver provides real-time DDM access to parameters such as optical power, temperature, voltage and laser bias current via the I2C interface.
Q
What is included in the FET-40G-C package?
A
Each package contains the FET-40G-C transceiver module, protective dust caps, and a quick-start installation guide.
Q
What is the typical lead time and shipping for the FET-40G-C?
A
In-stock orders ship within 1–2 business days. Expedited shipping and bulk order lead times may vary based on availability.
Q
How can I troubleshoot link issues with the FET-40G-C?
A
Verify fiber cleanliness, confirm switch port configuration, check DDM parameters for power and temperature, and test with a known good cable or transceiver.
