Network transceiver BlueOptics QSFP28 BO25LS856S1D 100GBASE-SWDM4 up to 100 m

The BlueOptics QSFP28 BO25LS856S1D is a 100GBASE-SWDM4 network transceiver designed for short-reach multimode fiber links up to 100 meters. Compatible with QSFP28 100 Gigabit Ethernet ports, this module uses single-lambda multiple-wavelength short-reach technology to deliver four 25 Gbps channels over standard multimode fiber, enabling reliable high-density interconnects in data centers and enterprise networks while reducing cabling complexity.

Advantages

This transceiver supports 100GBASE-SWDM4, providing four parallel 25 Gbps lanes over a single multimode fiber pair for efficient use of existing fiber infrastructure. The QSFP28 form factor offers high port density and hot-pluggable installation, which simplifies maintenance and upgrades. The module is engineered for compatibility with QSFP28 ports and typical data center environments, offering stable short-range performance and predictable signal integrity over multimode fiber up to 100 m.

Suitable for

• 100 Gigabit Ethernet uplinks between switches in data center racks
• Server-to-switch or switch-to-switch short-range interconnects
• High-density aggregation in enterprise network closets and campus cores
• Upgrading multimode fiber infrastructure to 100G without replacing fiber cabling

Key specifications

• Standard: 100GBASE-SWDM4 over multimode fiber
• Form factor: QSFP28, hot-pluggable
• Maximum reach: up to 100 meters on multimode fiber
• Data rate: aggregate 100 Gbps (4 × 25 Gbps)
• Wavelength: SWDM single-lambda multiple-wavelength short-reach signaling
• Fiber type: multimode fiber (MMF)
• Typical applications: data center and enterprise short-range links

How to use

Install the QSFP28 transceiver into a compatible 100G QSFP28 port until it clicks into place, observing proper handling to avoid static discharge and contamination of the optical interfaces. Connect the multimode fiber patch cable with appropriate MPO/MTP or duplex connectors as required by the cable and port setup. Verify link status and port configuration on the connected switches or network devices, and monitor performance metrics through the host system's management interface. For hot-plug operations, follow the equipment manufacturer's guidance to avoid disrupting traffic on adjacent ports.

Recommendations

Use OM3/OM4 multimode fiber with suitable MPO/MTP cabling to achieve the specified 100 m reach. Ensure optical connectors are clean before mating and maintain proper bend radius for fiber runs. Confirm firmware and compatibility notes on the host device if vendor interoperability policies apply, and test links after installation to validate performance.