Media Converter

Fiber optic converters. product details: item: fiber optic converter model: leohtb-gsm-dx specifications: 1000m/sm/dx/20km/external power supply 1000m: likely refers to 1000 mbps (gigabit ethernet) speed. sm: indicates single-mode fiber optic cable. dx: likely refers to duplex, meaning it uses two fiber strands for transmitting and receiving signals. 20km: indicates a maximum transmission distance of 20 kilometers. external power supply: requires an external power source. quantity: 2 pieces