1,Optical Fiber Transceiver: Support pure transceiver mode, connect two PHYs, reduce the transmission delay to nanosecond level. 2,Transmission Mode: Supports full duplex and half duplex transmission modes, and can auto negotiate to ensure stable transmission. 3,Easy Installation: Supports automatic crossover of twisted pair ports, which is convenient for system debugging and installation. 4,Low Power Consumption: With low power consumption chip, low heat generation, support 2U‑14 slot rack, 2U‑16 slot rack, suitable for network communication. 5,LED Indicator: Supports optical port rate, electrical port rate, optical port Link/Act, electrical port Link/Act, electrical port full duplex, power supply. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.