The FIBERSTAMP 200G QSFP DD SR4 is a Pluggable, Parallel, Fiber-Optic QSFP Double Density for 200 Gigabit Ethernet Applications. This transceiver is a high performance module for short-range multi-lane data communication and interconnection applications. Each lane can operate at 53.125Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber with KP-FEC. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface 200GAUI-8(no FEC)¹ uses a 76 contact edge type connector. The optical interface uses a 12 fiber MTP (MPO) connector. This module can convert 8 channels of 25Gbps (NRZ) electrical input data to 4 channels of 50Gbps (PAM4) optical signal, and also can convert 4 channels of 50Gbps (PAM4) optical signal to 8 channels of 25Gbps (NRZ) electrical output data. The Common Management Interface Specification (CMIS) for QSFP DD modules, This module incorporates FIBERSTAMP Technologies proven circuit and VCSEL technology to provide reliable long life, high performance, and consistent service.