ATOP APQPLR43CDM10 is used for the InfiniBand FDR/QDR/DDR/SDR, 10 g / 8 g / 4 g / 2 g fiber channel, PCIe and SAS, the application of four channel, pluggable, parallel, fiber optic QSFP + transceiver. QSFP full-duplex light module provides four independent sending and receiving channels, each capable of using single-mode fiber 11.3 Gbps operations, according to the total rate of 45.2 Gbps 10 km. These modules are designed to use 1310 nm DFB laser array of single-mode optical fiber system. MPO/MTPTM optical fiber ribbon cable connector socket can be inserted into the QSFP module. QSFP + PSM LR4 transceiver, is a parallel port are provided by density and the overall system cost savings.