REASONS TO BUY: Optics: ethernet fiber converter is made of high-quality optical materials, which can effectively reduce the loss of fibers. Gigabit fiber optical media converter: can be used as a fiber optic media converter, the optical media converter is used to convert data from single mode to multiple mode. Fiber optic switch 8 ports: the ethernet fiber optic switch is designed with advanced fiber optic technology, which allows the fiber optic switch to be easily connected and removed without interfering with fiber optics. Small: small and , easy to carry. it can be easily placed in a pocket or bag when not in use. type: B-Duplex PCBA Material: PC+Metal colour: Blue Package Contents: 1 x Gigabit Ethernet Fiber Switch Media Converter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.