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Gray QSFP28 plug-in transceiver module with LC/UPC duplex port, 0.7 by 2.9 by 0.5 inches

Cisco Systems, Inc.

Cisco Systems, Inc. QSFP-100G-SR1.2= 100 Gbps SFP transceiver

SKU CH-HKM1-5WJNE MPN QSFP-100G-SR1.2=

A QSFP28 plug-in module delivering 100 Gbps over duplex LC multi-mode fibre up to 328 ft using 855 nm and 908 nm wavelengths with hot-swap and DOM support

  • Device TypeTransceiver
  • 100 Gbps throughput over a single fibre pair using 100GBase-SR1.2 cabling
  • Bi-directional optics at 855 nm and 908 nm simplify duplex links
  • Hot-swap replacement keeps links live during maintenance
  • Digital Optical Monitoring provides real-time link health data
  • Reaches 328 ft on OM4 or OM5 multi-mode fibre

Cisco QSFP28 100GBase-SR1.2 Transceiver

This Cisco QSFP28 transceiver module delivers 100 Gbps Ethernet connectivity over multi-mode fibre. It uses a dual-wavelength LC/UPC interface operating at 855 nm and 908 nm. The plug-in module supports hot-swap replacement and Digital Optical Monitoring. It is built for high-density data centre links.

Suitable for 100GbE BiDi links up to 328 ft

Network engineers deploying 100GBase-SR1.2 connections over OM4 or OM5 fibre will use this module. It fits switches with QSFP28 ports that support Bi-Directional optics. Teams needing longer reach, single-mode fibre, or different lane configurations must select alternative transceivers.

Dual-wavelength 855 nm / 908 nm BiDi optics

The defining specification is the Bi-Directional optical interface using 855 nm and 908 nm wavelengths over a single LC/UPC multi-mode pair. This wavelength pair determines compatibility with the link budget and the OM4 or OM5 cabling plant. Verify that the host platform supports this specific BiDi wavelength scheme before purchase.

Highlights

  • 100 Gbps throughput over a single fibre pair using 100GBase-SR1.2 cabling
  • Bi-directional optics at 855 nm and 908 nm simplify duplex links
  • Hot-swap replacement keeps links live during maintenance
  • Digital Optical Monitoring provides real-time link health data
  • Reaches 328 ft on OM4 or OM5 multi-mode fibre

Specifications

Device TypeTransceiver
Shipping weight0.45 kg
Package size25 × 25 × 25 mm

Questions about this item

What does the 100 Gbps rate mean when the module is installed in a switch?

It provides a single 100 GbE lane over duplex multi-mode fibre, delivering line-rate throughput for 100GbE links.

How does the 100GBase-SR1.2 interface limit reach and fibre type?

The BiDi LC/UPC interface runs on OM4 or OM5 multi-mode fibre up to 328 ft using 855 nm and 908 nm wavelengths.

Will this QSFP28 module fit in a standard 1 U switch faceplate?

The plug-in module measures 0.7 in wide, 2.9 in deep and 0.5 in high, matching the QSFP28 cage footprint.

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