Axiom 25GBASE-BX40-U SFP28 Transceiver for Cisco
The Axiom 25GBASE-BX40-U SFP28 transceiver is engineered for data center operators and network administrators who demand reliable, long-distance connectivity over single-strand fiber. This Cisco-compatible SFP28 module delivers 25Gbps performance across 40km distances, making it ideal for campus networks, metropolitan area networks (MANs), and enterprise backbone infrastructure. Built to industrial specifications with temperature resilience from -40°C to 85°C, this transceiver ensures consistent uptime in demanding environments. Whether you're upgrading existing Cisco infrastructure or deploying new 25G networks, the 25GBASE-BX40-U provides cost-effective, standards-compliant connectivity without vendor lock-in.
Key Features
- 25Gbps data rate with 25GBASE-BX40-U standard compliance
- 40km transmission distance over single-strand single-mode fiber
- Simplex LC connector for simplified cabling and reduced footprint
- Dual wavelength operation: 1270nm transmit, 1330nm receive
- 100% OEM compatible across all Cisco SFP28-enabled platforms
- Industrial-grade temperature rating: -40°C to 85°C
- Single-mode fiber support for extended reach and superior signal integrity
- Hot-swappable design for zero-downtime module replacement
Technical Specifications
| Specification |
Value |
| Manufacturer |
AXIOM |
| Part Number |
SFP-25G-BX40U-I-AX |
| Data Rate |
25GBASE-BX40-U (25 Gbps) |
| Transmission Distance |
40 km |
| Fiber Type |
Single-strand single-mode fiber |
| Connector Type |
Simplex LC |
| Transmit Wavelength |
1270 nm |
| Receive Wavelength |
1330 nm |
| Operating Temperature |
-40°C to 85°C |
| Form Factor |
SFP28 |
| OEM Compatibility |
Cisco (100% compatible) |
Frequently Asked Questions
Is the Axiom 25GBASE-BX40-U SFP28 transceiver compatible with Cisco equipment?
Yes, this SFP28 transceiver is 100% OEM compatible with all Cisco platforms supporting SFP28 modules. It operates seamlessly in Nexus switches, UCS servers, and other Cisco infrastructure without requiring firmware updates or special configuration.
What is the maximum transmission distance for this 25G SFP28 module?
The 25GBASE-BX40-U supports distances up to 40 kilometers over single-strand single-mode fiber, making it suitable for long-haul campus and metropolitan network deployments.
Can I use this transceiver in high-temperature environments?
Absolutely. This module is rated for industrial temperatures ranging from -40°C to 85°C, ensuring reliable operation in data centers with elevated ambient temperatures or outdoor installations.
What type of fiber does the 25GBASE-BX40-U require?
This SFP28 transceiver uses single-strand single-mode fiber with a simplex LC connector, reducing cabling complexity and infrastructure costs compared to dual-fiber solutions.
