Coherent 400G Finisar Fiber Optic Transceiver Modules are designed for use in Gigabit Ethernet links on various applications, some with FEC. The modules offer hot-pluggable QSFP-DD, QSFP-DD type 2, and OSFP form factors and are RoHS-6 compliant. The wide variety of modules gives you flexible and cost-effective options for all types of interfaces. Cisco offers a range of GBIC, SFP, XFP, SFP+, CXP, CFP, Cisco CPAK, and QSFP+ pluggable modules. The ECPO-QDDZRP400G is a 400Gbps tunable DWDM DP-16QAM, 200G DP-QPSK, 100G DP-QPSK coherent transceiver supporting 400ZR / ZR+ / OpenZR+ applications. They are compliant with the QSFP-DD MSA, IEEE 802. The module converts 4 channels of 100Gb/s (PAM4) electrical input data to 4 channels of parallel optical signals, each capable of 100Gb/s operation for an aggregate data rate of 400Gb/s.