SFP56 is a Small Form-Factor Pluggable optical module designed for 50Gbps Ethernet transmission over a single lane. It represents the next evolution of the SFP form factor, enabling higher bandwidth while maintaining the same compact physical interface used by SFP+ and SFP28 modules. The 50G Modules are based on SFP56 form factor. Click to get your 50g sfp56, qsfp28 transceiver modules from nearby warehouses. The main. Fibertop - Global Optical Module Manufacturer -HPC,Data Center Log insign up ProfileLog out Optical Transceiver 800G OSFP 800G QSFP-DD 400G OSFP 400G QSFP-DD 200G QSFP56 100G QSFP28 QSFP28 Duplex QSFP28 BIDI QSFP28 PSM4 100G CFP QSFP28 DWDM 50G SFP56 SFP56 Duplex 40G QSFP+ QSFP+ Duplex QSFP+ BIDI. SFP56 optical transceiver modules are a single-lane, serial 4-level Pulse Amplitude Modulation (PAM4) technology providing a transmission rate of 50 Gbps and use LC connectors. Note that 50G SFP56 technology can not be split into two 25G flows - it is a single-lane, single-wavelength technology. NEC's 50G SFP56 optical transceiver, compared to optical transceivers that use analog CDR and DSP, offers better power consumption efficiency and enables high real-time communication. It can achieve twice the data transmission capacity of the 25G SFP28 optical transceiver.