The QSFP28 transceiver provides 100GBase-OWDM throughput up to 40km over single mode fiber (SMF) using a wavelength of 1295. 56nm via an LC/UPC duplex connector. It is fully compliant with the QSFP28 MSA, SFF-8636 standard. Digital optical monitoring (DOM) support is also present to allow access to. The modules met the same QSFP28 LR4 optical specification, supported the same 10km single-mode fiber reach, and were coded for the same switch platform. Sandra could have stayed under budget and still had room for spares, cabling, and. COMPLIANT WITH THE SFF-8636, IEEE802. 1 Amphenol's 100G QSFP28 optical modules include SR4, AOC, AOC break out, CWDM4, LR4, ER4 Lite, ER4 and ZR4 series, which adopt LC or MPO optical ports and are compatible with IEEE802. Aach channel can achieve a maximum transmission rate of 40Gbps.