Migrate to 400G connectivity with QSFP-DD modules that provide super-high density and backwards compatibility.
Cisco 400G QSFP-DD Cable and Transceiver Modules Data Sheet

The Cisco®family of QSFP-DD modules provide the industry’s highest bandwidth density while leveraging the backward compatibility to lower-speed QSFP pluggable modules and cables.
The Cisco 400GBASE Quad Small Form-Factor Pluggable Double Density (QSFP-DD) portfolio offers customers a wide variety of super high-density transceiver modules and the flexibility of 400 Gigabit Ethernet connectivity options fo r data center, high- performance computing networks, enterprise core and distribution layers, and service provider applications. The QSFP-DD modules are our new generation of 400G transceiver modules based on a QSFP-DD form factor.
Cisco 400G Optical Modules Portfolio
Table 1.Feature and Benefits of Cisco QSFP-DD Modules
| Feature | Benefit |
| Hot-swappable | Input/output device that plugs into 400G Ethernet Cisco QSFP-DD port |
| Interoperable | Interoperable with other IEEE-compliant 400GBASE interfaces where applicable |
| Certified on Cisco platform | Certified and tested on Cisco QSFP-DD 400G ports for superior performance, quality, and reliability |
| Compliant with IEEE 802.3 | High-speed electrical and optical interfaces compliant to IEEE 802.3 |
| Compatible with MSA | Compliant to QSFP-DD MSA CMIS Rev4.1, OIF 56G PAM4, IEEE 802.3 and 100G Lambda MSA |
| Backward compatibility | QSFP-DD port is backward compatible with QSFP+, QSFP28 and QSFP56 modules |
| Breakout capability | Some QSFP-DD modules have the capability to interface to multiple 100G modules when operated in breakout mode, providing higher port density for 100G interfaces, and easing the migration to 400G platforms |
Table 2. Cisco 400G QSFP-DD portfolio
| Product | Descriptions |
| QDD-400-CUxM | 400G, QSFP-DD to QSFP-DD, Passive Copper Cable, 0.5 meter, 1 meter, 2 meters, 2.5 meters, 3 meters |
| QDD-400-AOCxM | 400G QSFP-DD Transceiver, Active Optical Cable, 1, 2, 3, 5, 7, 10, 15, 20, 25, 30 meters |
| QDD-400G-SR8-S | 400G QSFP-DD Transceiver, MPO-16 APC MMF, 100m OM4 MMF, Can be used for 2X 200G-SR4 and 8x 50G-SR breakout |
| QDD-400G-SR4.2-BD | 400G QSFP-DD Transceiver, MPO-12, 100m OM4 MMF, 400GBASE-SR4.2 compliant. Can used for 4X breakout to QSFP-100G-SR1.2 |
| QDD-400G-DR4-S | 400G QSFP-DD Transceiver, 400GBASE-DR4, MPO-12 parallel SMF, 500m |
| QDD-4X100G-FR-S | QSFP-DD Transceiver, 4x 100GBASE-FR1, MPO-12,2km parallel SMF |
| QDD-4X100G-LR-S | QSFP-DD Transceiver, 4x 100GBASE-LR1, MPO-12,10km parallel SMF |
| QDD-400G-FR4-S | 400G QSFP-DD Transceiver, 400G-FR4, 2km Duplex SMF |
| QDD-400G-LR4-S | 400G QSFP-DD Transceiver, 400G-LR4, 10km Duplex SMF, 100% compliant with 400GBASE-LR4-6 |
| QDD-400G-LR8-S | 400G QSFP-DD Transceiver, 400GBASE-LR8, 10km Duplex SMF |
| QDD-2X100-SR4-S | 2x100GBASE-SR4 Transceiver, 100GBASE-SR4, MPO-24, 100m MMF |
| QDD-2X100-CWDM4-S | 2X 100G-CWDM4 Transceiver, 100G-CWDM4, Dual Duplex CS connector, 2km Duplex SMF |
| QDD-2X100-LR4-S | 2x100GBASE-LR4 Transceiver, 100GBASE-LR4,Dual Duplex CS connector, 10km SMF |
Note: Except for QDD-400G-SR8-S, QDD-400G-DR4-S, QDD-4X100G-FR-S, QDD-4X100G-LR-S, only connections with patch cords with PC or Ultra-Physical Contact (UPC) connectors are supported. QDD-400G-SR8-S, QDD-400G-DR4-S, QDD-4X100G-FR-S, QDD-4X100G-LR-S require patch cords with Angled Physical Contact (APC) MPO connectors. QDD-400G-SR8-S requires MPO-16 APC for MMF. All cables and cable assemblies used must be compliant with the standards specified in the standards section of this datasheet.
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What platforms does it support?
Almost all Cisco platforms which have SFP ports can use this SFP Module


















