Features: brand new and high quality 1 RJ45 port and 1 single-fiber SC optical port to realize optical signal conversion between 10/100base TX twisted pair (Ethernet) and 100base FX (optical fiber); Compared with dual-fiber data transmission, core fiber can complete signal transmission in only one way The mode of doubling the amount; for Comply with IEEE802.3 10Base-T and IEEE802.3u 100Base-TX, 100Base-FX standards; With 10M/100M adaptive capacity; The Ethernet interface can be self-adapted for direct connection/crossover network cable connection; Support full/half duplex mode; Support IEEE802.3X duplex flow control and half-duplex back pressure flow control; Support broadcast for storm prevention function; 1916 Byte supports large data frames (optional); The built-in for lightning for protection circuit can greatly reduce the damage caused by for lightning induction; UTP up to 100 meters; single-mode fiber up to 100 kilometers long; There are six LED indicators: Power, TX 100, TX Link/Act, FX 100, FX Link/Act, FDX/Col; easy to work The status of the transceiver and the cause of the error; Specifications: Material: Metal Size: Approx.7x2.6x9.3cm/2.76x1.02x3.66inch There are two types of external and internal power supplies: AC100265V/DC5V switching power supply; Working temperature: 0~50 degrees; Storage temperature:-40 ~ 70 degrees; Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Pair Fiber Transceiver