Cisco Single-Mode 10Gbps 10GBase-BX Fiber 40km 1270nmRX/1330nmTX LC Connector SFP+ Transceiver Module – SFP-10G-BX40D-I=

Cisco SFP-10G-BX40D-I= 10Gbps BiDi SFP+ Transceiver

Extend compatible 10GbE network links over single-mode fiber with the Cisco SFP-10G-BX40D-I= SFP+ transceiver module. This exact equals-suffix variant is specified for 10GBase-BX operation, a 40km reach, 1270nm receive and 1330nm transmit wavelengths, and an LC connector. Its bidirectional wavelength arrangement is suited to fiber link designs that use paired directional optics, making exact module matching essential at both ends. Confirm the host port, fiber route, wavelength pairing, connector, and exact variant before deployment.

Key Features

• 10Gbps 10GBase-BX connectivity
• Single-mode fiber support
• 40km listed reach
• 1270nm receive and 1330nm transmit wavelengths
• LC connector
• SFP+ transceiver format

Product Specifications

• Part Number: SFP-10G-BX40D-I=
• Manufacturer: Cisco
• Data Rate: 10Gbps
• Optical Standard: 10GBase-BX
• Fiber Type: Single-mode fiber
• Listed Reach: 40km
• Receive Wavelength: 1270nm
• Transmit Wavelength: 1330nm
• Connector: LC
• Module Type: SFP+ transceiver
• Variant Identifier: Equals-suffix model

Use Cases

• Supporting extended-reach 10GbE fiber links
• Connecting compatible carrier and enterprise equipment
• Building bidirectional single-mode network paths
• Replacing an exact Cisco BX SFP+ module

Compatibility

The SFP-10G-BX40D-I= is intended for compatible equipment supporting 10GBase-BX SFP+ modules. Confirm the paired wavelength design, host port, single-mode fiber, 40km route, LC connector, and exact variant before installation.

Frequently Asked Questions

What fiber type is required?

The module is specified for single-mode fiber.

What is the listed reach?

The product lists a 40km reach.

Which wavelengths are identified?

The listing specifies 1270nm receive and 1330nm transmit wavelengths.

The SFP-10G-BX40D-I= provides a focused long-distance 10GbE option for compatible single-mode fiber networks. Verify the wavelength pairing and exact equals-suffix model before ordering, since bidirectional optics must be matched correctly across the link. Using the exact Cisco module supports cleaner optical planning, more reliable replacements, and better control of extended-reach network inventory.