Dantek DFT Series is a 4-Port 100Base-FX + 4-Port 10/100Base-TX for FX/TX Bridge Media Converter and FX/TX Ethernet Switch Which complies with IEEE802.3 and IEEE 802.3u Standards. DFT Series enables network managers to connect 10 Mbps and 100 Mbps twisted pair network segments and active equipment to fiber optic cabling more cost-effectively than ever. MDI/MDI-X Auto Negotiation. WDM Technology of Fiber optic Combines Dual Fiber Cables into Single Fiber. Greatly save the Installation cost of Expensive Fiber Cable. Both a media and data rate converter, DFT Series features 10/100 auto-negotiation on the twisted pair port while the fiber port operates at 100 Mbps. DFT Series converters are ideal for any premises FTTD, LAN-to-LAN or LAN-to-WAN fiber networking applications.