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FET-10G
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10GBE LINE EXTENDER FOR FEX
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
FET-10G
- Description:
- 10GBE LINE EXTENDER FOR FEX
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 882658360763
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$1,235.93
- Price:
$24.7298% off
Quantity:
1
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FET-10G Overview
FET-10G is a high-performance SFP+ optical transceiver designed for 10G Ethernet applications. It features an LC connector and supports long-range single-mode fiber transmission over distances up to 10 km, making it ideal for use in data centers, enterprise networks, and telecom environments.
This compact transceiver adheres to industry-standard physical dimensions and interfaces, ensuring compatibility with leading networking equipment from vendors such as Cisco, Juniper, Huawei, and Arista. FET-10G is optimized for Ethernet protocols, offering reliable operation within an operating temperature range of 0 to 70°C and robust performance for demanding network infrastructures.
FET-10G price is $24.72, a 98% saving from the Cisco list price of $1,235.93. FET-10G is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for FET-10G for additional pricing. Browse the full Sfp+ series or explore all Cisco products.
FET-10G Specifications
- Product Type
- Transceiver
- Brand
- Cisco
- Form Factor
- SFP+
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 1310 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 10 km
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 1.5 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-10G
- Height
- 0.2 inches
- Width
- 0.65 inches
- Depth
- 1.2 inches
- Weight
- 0.04 lbs
FET-10G Use Case
Data Center Spine-Leaf Extension with FET-10G-10GBE Line Extender
In a hyperscale data center, the FET-10G-10GBE Line Extender reliably bridges remote FEX pods to the spine switch over distances exceeding 10 km on single-mode fiber. IT architects achieve consistent 10 Gbps throughput, sub-5 µs latency and unified management within a single fabric, streamlining operations and lowering TCO.
Multi-Building Campus Aggregation via 10G FEX Line Extension
A university IT team deploys the FET-10G-10GBE Line Extender to interconnect FEX nodes in disparate campus buildings over existing dark-fiber. This solution delivers guaranteed 10 GbE performance, simplifies VLAN and QoS policies across the campus core, and centralizes network monitoring—boosting user experience and reducing deployment time by 40%.
Ultra-Low Latency Trading Floor Connectivity with FEX Extension
A financial services firm integrates the FET-10G-10GBE Line Extender to link trading-floor FEX switches to the exchange gateway 8 km away. With deterministic 10 Gbps bandwidth, sub-microsecond jitter and redundant single-fiber failover, traders gain real-time market data, comply with strict SLAs and safeguard transaction integrity.
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Product Comparison Table 
| FET-10G |  CWDM-SFP10G-1510 |  SFP-10G-LR-S |  SFP-10G-BX40D-I |  DWDM-SFP10G-42.14 | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Optical Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP+ | SFP+ | SFP+ | SFP+ |
| Data Rate | 10G | 10G | 10 Gbps | 10G | 10G |
| Connector Type | LC | LC | LC Duplex | LC | LC |
| Fiber Type | Single-mode | Single-mode | Single-Mode (SMF) | Single-mode | Single-mode |
| Operating Temperature | 0 to 70°C | 0 to 70°C | Commercial (0°C to 70°C) | 0 to 70°C | 0 to 70°C |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
A
Avery Langston
4
10GbE line extender performs flawlessly with minimal latency, ensuring smooth connectivity for enterprise networks.
B
Brooke Sinclair
5
Reliable and easy to install, this extender maintains high throughput across critical 10G connections.
C
Caleb Whitmore
5
Professional-grade line extender with consistent performance and minimal downtime.
D
Dahlia Kerr
5
Highly dependable for large-scale data center deployments.
E
Ethan Caldwell
5
Maintains stable 10G speeds with effortless setup and integration.
Questions & Answers
What is the Cisco FET-10G?
The Cisco FET-10G is a 10 Gigabit Ethernet line extender for FEX devices that extends high-speed connectivity up to 10 km over single-mode fiber.
What are the key features of the FET-10G?
Key features include 10 Gbps full-duplex throughput, up to 10 km reach on single-mode fiber, sub-2 µs latency, hot-swappable SFP+ form factor and seamless integration with Cisco Nexus FEX modules.
What maximum distance does the FET-10G support?
The FET-10G supports link extensions up to 10 km (6.2 mi) over single-mode fiber with standard SFP+ optics.
Which type of cabling and connectors are required for the FET-10G?
The FET-10G requires single-mode fiber cabling with LC-to-LC SFP+ transceivers for both link and FEX uplink connections.
How do I install the FET-10G in a Cisco FEX environment?
To install, power down the FEX, insert the FET-10G module into an available uplink slot, attach SFP+ optics, then power up and verify link status on the parent Nexus switch.
Is the FET-10G compatible with non-Cisco switches?
No. The FET-10G is validated exclusively for use with Cisco Nexus FEX modules and requires a Cisco parent switch for full feature support.
What throughput performance can I expect from the FET-10G?
You can expect full 10 Gbps bidirectional throughput with line-rate forwarding and minimal packet loss when properly provisioned.
Does the FET-10G support link resilience or redundancy?
Yes. It supports link-level redundancy, auto failover between multiple uplinks, and rapid reconvergence managed by the parent Nexus switch.
Can I monitor and manage the FET-10G through Cisco DCNM?
Yes. The FET-10G is fully managed as part of the FEX inventory in Cisco Data Center Network Manager (DCNM) via the upstream Nexus switch.
What are the power requirements for the FET-10G?
The FET-10G draws power directly from the FEX module and does not require an external power source.
Does the FET-10G support QoS or traffic prioritization?
Yes. It transparently carries 802.1p traffic classes and trusts QoS markings configured on the parent Nexus switch for end-to-end prioritization.
What latency does the FET-10G introduce?
The FET-10G adds less than 2 microseconds of point-to-point latency, ensuring wire-speed forwarding for time-sensitive applications.
How do I order the FET-10G?
Order through an authorized Cisco reseller or partner using SKU FET-10G. Provide the Cisco part number to your sales contact for prompt fulfillment.
What warranty and support options are available for the FET-10G?
The FET-10G is covered by Cisco's Limited Lifetime Hardware Warranty and includes 90-day TAC support. Extended services are available through Cisco SMARTnet®.
What environmental conditions does the FET-10G support?
The FET-10G operates in temperatures from 0 °C to 40 °C (32 °F to 104 °F) and 10 %–85 % non-condensing relative humidity.
Can the FET-10G be rack-mounted or stacked?
The FET-10G is a hot-pluggable FEX line card designed for installation in compatible Cisco Nexus chassis; it is not a standalone rack-mount or stackable unit.
Does the FET-10G support VLAN tagging and advanced forwarding features?
Yes. It transparently forwards 802.1Q VLAN tags, supports trunk links, and inherits advanced features from the parent Nexus switch.