400GBASE-FR8 QSFP-DD Transceiver
https://www.epsglobal.com/Media-Library/EPSGlobal/Products/files/finisar/transceivers/FTCD1333E1PCL.jpg?ext=.jpg&maxsidesize=400
XCVR, QSFP56, 500m, 200G FR4 Lite, 4x 13XXnm LAN-WDM DFB, SM, pull tab, LC, ROHS compliant, 3.3V, 20/60°C operation
FTCC1122E1PLL
FTCC1122E1PLL
Coherent
https://www.epsglobal.com/getmetafile/94cfad1c-656d-435e-8625-94600a97706c/Coherent