DDM Digital Diagnostic Function: Real time detection of module status,Quickly locate the fault location,Simplify maintenance work,Improve system stability. Meticulous Workmanship Quality: Adoption of high quality electric chips and optical devices , high speed and stable transmission. Thickened Goldfinger: contact thickened gold plating treatment Enhance conductivity, Increase optical signal Transmission stability, Can be repeatedly plugged and unplugged. Color: As Shown Material: PC+Metal Package Contents: 1 x 10G SFP+ Fiber Module Transceiver 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.