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Cisco 40G QSFP+ Transceiver Modules

The 40G QSFP+ portfolio focuses on high-density 40 Gigabit Ethernet connectivity for enterprise core layers. The QSFP BiDi enables reuse of 10G fiber infrastructure, and breakout mode splits a single 40G port into four 10G ports.

Cisco 40G QSFP+ Transceiver Modules
40G QSFP+ BiDi 4x10G Breakout Enterprise Hot-Swappable

Product Overview

Enterprise Core

Purpose-built for enterprise core and distribution layers requiring high-density 40G connectivity.

BiDi Fiber Reuse

QSFP BiDi enables 40G over existing 10G duplex multimode fiber, eliminating costly recabling.

4x10G Breakout

Split a single 40G QSFP+ port into four independent 10G SFP+ connections for maximum flexibility.

High Density

Compact QSFP+ form factor enables high port counts per line card for dense aggregation layers.

QSFP+ Form Factor

Industry-standard QSFP+ with broad platform support across Cisco Catalyst and Nexus switches.

Cost Effective

Mature technology with competitive pricing and proven reliability for budget-conscious deployments.

Features and Benefits

Proven 40G connectivity for enterprise networks.

40G QSFP+ transceivers deliver reliable, high-density connectivity with BiDi fiber reuse and breakout capabilities for flexible enterprise deployments.

BiDi Technology

Run 40G over existing 10G duplex fiber, saving thousands in recabling and infrastructure costs.

4x10G Breakout

Convert a single 40G port to four 10G connections using MPO-to-LC breakout cables.

Multiple Reach Options

SR4, LR4, and extended reach options cover intra-rack to inter-building distances.

DAC & AOC Cables

Direct attach copper and active optical cables for lowest-cost short-range connections.

Cisco Certified

Tested and validated on Cisco Catalyst and Nexus platforms with full TAC support.

Hot-Swappable

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

Feature & Benefit Details

Feature
Benefit
QSFP-40G-SR-BD
BiDi 40G over duplex OM3/OM4 fiber — reuse existing 10G cabling infrastructure.
QSFP-40G-SR4
100m over OM3, 150m over OM4 using MPO-12 connector for short-range links.
QSFP-40G-LR4
10km over single-mode fiber using four CWDM wavelengths on duplex LC.
4x10G Breakout Mode
Split one 40G port into four 10G SFP+ connections for flexible leaf connectivity.

Specifications

QSFP+ Module

Form FactorQSFP+
Data Rate40 Gbps
Electrical Interface4x10G NRZ
ConnectorMPO-12 / LC duplex
Breakout4x10G SFP+

Reach Options

SR4150m (OM4 MMF)
SR-BD (BiDi)150m (OM4 duplex)
LR410km (SMF)
ER440km (SMF)

Documentation

40G QSFP+ Data Sheet

Cisco 40G QSFP+ transceiver modules data sheet. Full specifications, model comparison, ordering information, and compatibility details.

Download PDF ›

Ready to deploy 40G?

Our optics specialists will build a custom quote — including volume discounts, BiDi migration guidance, and compatibility verification.

  • Volume and project-based pricing available
  • Cisco Smart Net Total Care bundling
  • Compatibility verification with your platform
  • Response within one business day
Cisco 40G QSFP+ Transceiver Modules