As an extension to our 100 Series family of economical entry-level Ethernet products, N-TRON introduced a smaller, faster alternative - the 1000 Series. Built for toughness and speed, the 1000 Series is ideal for industrial data acquisition, control and Ethernet I/O applications where a smaller footprint and gigabit is preferred. For ease of ordering, the 1003GX2 comes pre-configured with multimode or singlemode fiber SFP transceivers. The pre-configured ordering information is: 1003GX2-SX for two matching multimode fiber SFPs ,or 1003GX2-LX-ZZ for two matching singlemode fiber SFPs (See ordering key below). The 1003GX2 may also be ordered a la carte allowing you to mix- and-match various lengths of multimode and singlemode fiber.