Dell 25GbE 850nm 300m SFP28 Network Transceiver

Overview

The Dell 0CTW7 is a 25 gigabit Ethernet transceiver designed to fit any SFP28 slot, providing fast and reliable fiber-based network connections. It operates at an 850 nm wavelength and supports multimode fiber cabling up to 300 meters, making it suitable for short-reach backbone runs, wiring closets, and adjacent data halls. This module is hot pluggable, allowing installation or replacement without powering down equipment, which helps minimize downtime during maintenance or upgrades.

With its LC duplex connector, the transceiver integrates seamlessly into existing fiber trays without the need for adapters. It also features digital diagnostic monitoring that reports real-time operating data such as temperature, laser bias current, and optical power, enabling proactive network management and issue detection.

Key features

• Supports data transfer rates up to 25 Gbps for high-bandwidth applications
• Compatible with OM3 and OM4 multimode fiber cabling for flexible deployment
• LC duplex connector ensures easy integration with existing fiber infrastructure
• Hot pluggable design allows for quick installation or replacement without network downtime
• Digital diagnostic monitoring interface provides real-time status updates to help maintain network health
• Qualified for a broad range of Dell switches and servers, ensuring smooth compatibility and vendor support

Key specs

• Data transfer rate: 25 Gbps
• Wavelength: 850 nm
• Maximum reach: 300 meters over multimode fiber
• Connector type: LC duplex
• Form factor: SFP28
• Fiber type: OM3 and OM4 multimode

Connectivity and compatibility

This transceiver is designed to work seamlessly with Dell networking and server platforms, making it a reliable choice for expanding or upgrading existing Dell infrastructures. Its SFP28 form factor fits standard slots on switches, servers, and storage arrays, providing a straightforward upgrade path to 25 gigabit speeds without requiring new hardware or adapters.

• Compatible with Dell switches and servers supporting SFP28 modules
• Works with OM3 and OM4 multimode fiber cables
• LC duplex connector for direct fiber connections

Ideal uses and environments

The Dell 0CTW7 transceiver is well suited for environments that demand higher bandwidth than 10 gigabit links can provide. It fits well in server virtualization clusters, top-of-rack switches aggregating high-density access ports, and hyperconverged infrastructure nodes replicating data across racks. Its 300-meter reach supports short-distance backbone connections and data hall interlinks, making it a practical choice for private clouds, edge networks, and lab environments focused on high-performance testing.