The QSFP-DD (Quad Small Form Pluggable Double Density) transceiver form factor leverages the manufacturing capability and cost structure that supports QSFP+ and QSFP28, the industry’s standards for 40GbE and 100GbE. The QSFP-DD Specification defines a new pluggable form factor that supports 8 high speed electrical interfaces connecting to the host. It is backward compatible with all QSFP based transceivers from 40G to 200G. QSFP-DD can support 36 ports of 400GbE in a single Rack Unit (RU) providing over 14Tb/s of bandwidth.


Maximum Distance (m)

Connector Type

Fiber Type

Optical Wavelength (nm)

Part Number Data Sheet Form Factor Max Data Rate (Gbps) Maximum Distance (m) Connector Type Fiber Type Nominal Optical Wavelength (nm) Lifecycle
AFBR-91BBDDZ PDF QSFP-DD 400 100 MPO Multimode 850 Limited Release
AFBR-91SRDDZ PDF QSFP-DD 400 30 MPO-16 Multi-mode 850 Limited Release
AFCT-91DRDDZ PDF QSFP-DD 400 500 MPO Singlemode 1310 Active
AFCT-91FRDDZ PDF QSFP-DD 400 2000 LC Singlemode 1310 Active
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