..."pluggable transceiver to pack the functionality of four individual 100G LR4 or CWDM4 optical engines into a single module. With the average size of a 100G CWDM4 and 100G LR4 optical engine chiplet being 6mm x 9mm, ADVA’s engineers saw the potential to use multiple chiplets in a single QSFP-DD pluggable form factor."