Welcome to our shop! 1. This Ethernet media converter supports IEEE802.3u.100BASE‑T and 100 BASE‑FL protocols and is plug and play. 2. Supports full-duplex or half-duplex network communication with automatic negotiation function. 3. Automatically adapts to 10Mbps, 100Mbps, and 1000Mbps environments; the RJ45 port supports direct or crossover automatic identification function. 4. The REMOTE PAUSE function of this Ethernet media converter ensures the integrity of data packet transmission. 5. It has broadcast storm protection, flow balancing, conflict isolation, and error detection functions. Item Type: Ethernet Media Converter Material: Aluminum Alloy, Circuit Board Model: TBC-MC3312NS20A Standard Protocol: IEEE 802.3, IEEE 802.3u, IEEE 802.3d, IEEE 802.3Q Bandwidth: Electrical Port: 10/100M Optical Port: 155M Working Mode: Full Duplex/Half Duplex, with Full Duplex/Half Duplex Auto Negotiation Function Interface: Electrical Port: RJ45 Optical Port: SC/FC/ST/LC LED Indicator: For FPL/10/100/FRX/TRX/PWR/FDX UTP Network Cable: Cat5 UTP (within 100m) Fiber Type: 9/125 (Single-Sided Dual Fiber 20-120km), (Wavelength 1310nm, 1550nm) Power: ≤5W Includes: 1 x Ethernet Media Converter 1 x Connector 1 x User Manual Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!