QSFP-DD Compatible Switches: Complete 2025 Vendor Guide
Find which switches support QSFP-DD modules. Our 2025 guide covers Cisco, Arista, Juniper and NVIDIA platforms with backward compatibility tips.
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QSFP-DD Connectors | High Speed I/O | Amphenol
The QSFP-DD family supports legacy QSFP channels on the front interface and four additional channels on the rear interface. This interconnect system optimizes density and power
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Differences Between QSFP-DD and QSFP+ / QSFP28 /
QSFP-DD transceivers are a leading solution in high-speed 200G, 400G, and 800G applications. The differences between QSFP-DD and
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Specification – QSFP-DD
July 11, 2019 – QSFP-DD Hardware Specification for QSFP DOUBLE DENSITY 8X PLUGGABLE TRANSCEIVER – Rev 5.0 May 8, 2019 – Common Management Interface
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QSFP-DD Connectors, Cages and Cable Assemblies
QSFP-DD (quad small form-factor pluggable double density) doubles the capacity of QSFP interconnects with an eight-lane electrical interface capable of 28 Gbps NRZ, 56 Gbps PAM4, and
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Complete QSFP-DD Compatibility Guide for Data Centers
Complete QSFP-DD compatibility guide with switch matrix, firmware requirements, and MSA compliance. Verify module compatibility before you buy.
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SONiC 32-Port 400G Data Center Switch Low Latency For AI/ML
Built on the Marvell Teralynx platform, it delivers 12.8 Tbps of line-rate L2/L3 throughput with ultra-low latency as low as 400ns, meeting the stringent performance demands of AI/ML clusters, hyperscale
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Ethernet Network Data Switches
200G QSFP56 InfiniBand HDR 400G/800G Ethernet Transceivers 800G OSFP 800G QSFP-DD 400G QSFP-DD 400G OSFP 400G QSFP112
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QSFP-DD Series
QSFP-DD can enable up to 14.4 Tbps aggregate bandwidth in a single switch slot. QSFP-DD electrical interfaces will employ eight lanes that operate up to 25 Gbps NRZ modulation or 50 Gbps PAM4
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QSFP-DD Hardware
This specification defines: the electrical and optical connectors, electrical signals and power supplies, 19 mechanical and thermal requirements of the pluggable QSFP Double Density (QSFP-DD/QSFP
View moreLaser Diodes & VCSEL
High-power CW/pulsed laser diodes (808nm–1550nm) and VCSEL arrays for 3D sensing, LIDAR, and optical interconnects.
Silicon Photonics & CPO
Co-packaged optics engines, silicon photonics ICs, and optical I/O solutions for high-density switches and AI clusters.
Optical Transceivers & AOCs
400G/800G QSFP-DD/OSFP modules, active optical cables, and custom optical engines for data center interconnects.
Laser Drivers & CDR
Low-jitter laser drivers, integrated CDR circuits, and linear TIAs for coherent optics and short-reach links.