400G QSFP-DD Transceivers Package Part No. Data Rate Wavelength (nm) Distance Source Output Power (dBm) Sensitivity (dBm) Connector QSFP-DD SR8 MAYQD85MM01D 400G 850 100m VCSEL / PIN -6~4 <-7.9 MPO QSFP-DD DR4 MAYQD31SM05D 400G 1310 500m DFB / PIN -2.9~4 <-5.9 MPO QSFP-DD LR8 MAYQD31SL10D 400G 1310 10KM LWDM EML / PIN -2.8~5.3 <-9.1 LC QSFP-DD ER8 MAYQD31SL40D 400G 1310 40KM LWDM EML / APD -2.8~5.3 <-9.1 LC QSFP-DD FR4 MAYQDC4SL2D 400G 1271/1291/1311/1331 2KM CWDM EML/PIN -3.3~3.5 <-7.3 LC QSFP-DD LR4 MAYQDC4SL10D 400G 1271/1291/1311/1331 10KM CWDM EML/PIN -2.7~5.1 <-9.1 LC Ordering Information: Brand Package Wavelength (nm) Fiber Mode Connector Distance DDM MAY QD: QSFP-DD 85: 850 31: 1310 C4: 1271/1291/1311/1331 S: SM M: MM L: LC M: MPO 01: 100m 05: 500m 2: 2KM 10: 10KM 40: 40KM D: with DDM