Dell Dual Rate SFP28 SR Optical Transceiver Module

The Dell M14MK is an SFP28 short-range optical transceiver that supports dual data rates, letting you run either 10 GbE or 25 GbE links over multimode fiber without swapping hardware. Designed for top-of-rack switches, servers, and storage arrays, it fits directly into compatible Dell networking ports and goes to work the moment you hot-plug it, so there is no need for scheduled downtime.

Operating at an 850 nm wavelength, the module pairs with duplex LC connectors and delivers reliable connectivity up to 100 meters when you use OM4 fiber. That reach covers most rows in a modern data center or equipment room, making the transceiver a practical choice for short-range server aggregation, VMware clusters, or high-performance storage fabrics.

The M14MK follows the industry-standard SFP28 MSA, ensuring straightforward compatibility across a wide range of Dell switches and network interface cards. For network administrators, this means easier sparing, simplified upgrades from 10 GbE to 25 GbE, and consistent performance across mixed-speed environments.

• Supports both 10 Gbps and 25 Gbps Ethernet for flexible deployment
• Operates at an 850 nm wavelength on multimode fiber
• Up to 100 m link distance when paired with OM4 cabling
• Uses duplex LC connectors for quick, secure fiber connections
• Hot-pluggable SFP28 form factor for tool-free installation and replacement