Cisco FET-10G Compatible SFP+ Transceiver for Nexus 2000 FEX
Cisco compatible FET-10G - Key Features
- Compatibility: Cisco
- Media Type: Multi-Mode Fiber (MMF) -OM3/OM4/OM5
- Fiber Count: Duplex
- Connector: Double LC/UPC
- Maximum Distance: 400 m
- Average Link Budget: 6.1 dB
- Tx Wavelength: 850 nm
- Supported Data Rate: 1.25 Gbps - 11.32 Gbps
- DDM/DOM: Supported
- Temperature Range: Standard 0°-70°C
Cisco FET-10G Price
Cisco compatible FET-10G Specifications
Form Factor | SFP+ |
Media Type | Multi-Mode Fiber (MMF) -OM3/OM4/OM5 |
Fiber Count | Duplex |
Connector | Double LC/UPC |
Maximum Distance | 400 m |
Average Link Budget | 6.1 dB |
TX Wavelength | 850 nm |
RX Wavelength | 850 nm |
Supported Data Rate | 1.25 Gbps - 11.32 Gbps |
Supported Ethernet Applications | 10G Ethernet (10.31Gbps), Gigabit Ethernet (1.25 Gbps) |
Supported Fiber Channel Applications | 10G Fiber Channel (10.52 Gbps), 1G Fiber Channel (1.0625 Gbps), 2G Fiber Channel (2.125 Gbps), 4G Fiber Channel (4.25 Gbps), 8G Fiber Channel (8.5 Gbps) |
SDH/SONET Standards | STM-64 (9.95Gbps) |
DDM/DOM | Supported |
Tx Wavelength Bandwidth | 20 nm (840-860 nm) |
Rx Wavelength Bandwidth | 20 nm (840-860 nm) |
Minimum Transmitting Power | -5 dBm |
Maximum Transmitting Power | 0 dBm |
Receiver Sensitivity | -11.1 dBm |
Receiver Overload | 0 dBm |
Dispersion | 110 ps/nm |
Transmitter Type | VSCEL Laser |
Receiver Type | PIN photodiode |
Temperature Range | Standard 0°-70°C |
Power | +3.3V single power supply |
Compliance | CE,Class 1 FDA and IEC60825-1 Laser Safety Compliant,RoHS,SFF-8431,SFP MSA |
Cisco compatible FET-10G Datasheet
v3Complete technical specifications and product details
Cisco compatible FET-10G Description
Cisco assigned the FET-10G part number to their Fabric Extender Transceiver, an 850 nm 10GBASE-SR SFP+ module built specifically for the Nexus 2000 FEX series. While optically identical to the SFP-10G-SR, the FET-10G carries a distinct PID in Cisco's ordering system and appears as such in the Nexus 2000 compatibility matrix. EdgeOptic's compatible replacement matches the original FET-10G specifications and ships with Cisco-recognized EEPROM, so Nexus fabric extenders accept it without generating unsupported-transceiver alerts. The module reports as FET-10G in NX-OS show inventory and show interface transceiver outputs, matching the expected PID for fabric extender port validation.
Optical output at 850 nm uses a VCSEL laser transmitting through duplex LC/UPC connectors into multimode fiber. The 6.1 dB link budget supports 300 m on OM3 and 400 m on OM4 cabling. DDM diagnostics per SFF-8472 provide real-time transmit power, receive power, temperature, and bias current readings through NX-OS CLI.
Data rate support spans 1.25 to 10.3125 Gbps, covering 10 Gigabit Ethernet (IEEE 802.3ae), Gigabit Ethernet. The actual negotiated speed is determined by the parent switch port settings. The module conforms to SFF-8431 and SFF-8432 mechanical and electrical specifications, for physical compatibility across all standard SFP+ cages. CE and RoHS certifications are in place.
Typical deployment: Nexus 2148T, 2248TP, 2232PP, and 2232TM fabric extenders connecting back to a Nexus 5000, 5500, 6000, or 7000 parent switch over short-reach MMF links. The FEX uplink ports require 10G SFP+ optics, and the FET-10G PID is the standard ordering reference for these connections. The FET-10G also works in any Cisco platform that lists 10GBASE-SR SFP+ support, though the SFP-10G-SR PID is the standard reference for non-FEX platforms. When replacing an original Cisco FET-10G in an existing FEX installation, the EdgeOptic compatible is a direct swap with no configuration changes required on the parent switch.
Every FET-10G module is verified against Cisco Nexus EEPROM requirements and tested for optical compliance before shipping. The module is compliant with the SFP+ MSA per SFF-8431. Optical connector cleaning between insertion cycles is the only maintenance consideration, as the transceiver itself requires no firmware updates or periodic servicing during its operational lifetime. For questions about FET-10G compatibility with a specific Nexus FEX model or parent switch combination, contact our sales team.
Frequently Asked Questions
What is the difference between Cisco FET-10G and SFP-10G-SR?
Both are 10GBASE-SR 850 nm SFP+ modules with the same optical parameters. The difference is the Cisco product ID (PID): FET-10G was created for the Nexus 2000 Fabric Extender ordering path, while SFP-10G-SR is the general-purpose PID listed across Catalyst, ASR, and Nexus platforms. Functionally and electrically they are interchangeable, but NX-OS reports the PID stored in the EEPROM, so ordering the correct PID avoids inventory confusion.
Does the FET-10G compatible require the 'service unsupported-transceiver' command on NX-OS?
No. EdgeOptic programs the EEPROM with Cisco-recognized vendor and PID fields. Nexus 2000, 5000, and 7000 platforms accept the module natively without the service unsupported-transceiver command.
Which Nexus 2000 FEX models support the FET-10G?
The FET-10G is listed in the compatibility matrix for Nexus 2148T, 2224TP, 2232PP, 2232TM, and 2248TP fabric extenders. It is also accepted in the parent-side 10G ports of Nexus 5000, 5500, 6000, and 7000 series switches that host FEX uplinks.