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Cisco 100G QSFP28 Transceiver Modules

The 100G QSFP28 portfolio is the workhorse of enterprise and service provider networks. Diverse options including BiDi optics for 100G over existing 10G duplex fiber, SR4, LR4, CWDM4, ZR4, plus DAC cables and AOCs.

Cisco 100G QSFP28 Transceiver Modules
100G QSFP28 SR4/LR4/CWDM4 BiDi DAC & AOC Enterprise

Product Overview

Enterprise Workhorse

The most widely deployed high-speed transceiver for enterprise core, data center, and service provider networks.

BiDi Fiber Reuse

QSFP-40/100-SRBD enables 100G over existing 10G duplex multimode fiber, eliminating recabling costs.

Wide Reach Options

From 100m SR4 to 80km ZR4, covering intra-rack, campus backbone, and metro DCI use cases.

DAC & AOC Cables

Direct attach copper and active optical cables for lowest-cost, lowest-latency short-range links.

Power Efficient

Low power consumption across all models reduces cooling costs and supports high-density deployments.

IEEE Compliant

Full IEEE 802.3bm, 802.3ba, and 802.3cd compliance ensures multi-vendor interoperability.

Features and Benefits

The broadest 100G portfolio for every network layer.

From short-range DAC cables to 80km ZR4 optics, the Cisco 100G QSFP28 family covers every enterprise and data center connectivity requirement.

BiDi Technology

Run 100G over existing 10G duplex fiber infrastructure, saving thousands in recabling costs.

Ultra-Long Reach

ZR4 optics extend 100G connectivity up to 80km for metro DCI and extended campus.

DAC & AOC

Direct attach copper and active optical cables for lowest cost and latency within racks.

4x25G Breakout

Split a single 100G port into four 25G connections for server-to-switch leaf connectivity.

S-Class Quality

S-Class optics deliver enhanced digital diagnostics and extended temperature operation.

Hot-Swappable

Replace modules without powering down the switch for zero-downtime maintenance.

Feature & Benefit Details

Feature
Benefit
QSFP-100G-SR4-S
100m over OM4 multimode fiber for intra-rack and top-of-rack connections.
QSFP-100G-LR4-S
10km over single-mode fiber for campus backbone and inter-building links.
QSFP-100G-CWDM4-S
2km over single-mode fiber using CWDM wavelengths on duplex fiber.
QSFP-40/100-SRBD
BiDi 100G over 100m duplex OM4 — reuse existing 10G fiber plant.
QSFP-100G-ZR4-S
80km over single-mode fiber for metro data center interconnect.
QSFP-100G-DR-S
500m over single-mode fiber for intra-campus spine-leaf links.
QSFP-100G-FR-S
2km over single-mode fiber for inter-building data center connections.
QSFP-100G-ERL-S
25km over single-mode fiber for extended campus and metro reach.

Specifications

QSFP28 Module

Form FactorQSFP28
Data Rate100 Gbps
Electrical Interface4x25G NRZ
ConnectorLC duplex / MPO-12
Digital DiagnosticsYes (S-Class enhanced)

Reach Options

SR4100m (OM4 MMF)
CWDM42km (SMF)
DR500m (SMF)
FR2km (SMF)
LR410km (SMF)
ERL25km (SMF)
ZR480km (SMF)

Cables

DAC (Passive)1m, 2m, 3m, 5m
DAC (Active)3m, 5m, 7m, 10m
AOC1m to 30m
Breakout4x25G SFP28

BiDi

ModelQSFP-40/100-SRBD
Speed40G / 100G dual-rate
FiberDuplex OM4 MMF
Reach100m (OM4)

Documentation

100G QSFP28 Data Sheet

Cisco 100G QSFP28 transceiver modules data sheet. Full specifications, model comparison, ordering information, and compatibility details.

Download PDF ›

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Cisco 100G QSFP28 Transceiver Modules