This adapter consists of a N-Type male on one end and a N-Type male on the other

Support max 5Gbps data transmission USB 3

It allows you to determine if the cable is pinned correctly or if it is mis-wired

Contact Resistance 20m

in this case

3m LC/APC 12-Fiber OS2 Singlemode Simplex 9 micron - 900um Pigtail - Color Coded spool-500ft This adapter consists of aThese 9 micron (OS2) fiber optic pigtails have terminated LC APC fiber optic connectors on one side and are un terminated on the other side. The un terminated ends are meant to be stripped and fusion spliced to single fibers of a multi strand fiber trunk cable. Physical Characteristics Cable Length 3m [9. 84 foot] Color Blue, Orange, Green, Brown, Grey, White, Red, Black, Yellow, Violet, Rose, Aqua Cable Diameter 900 micron Fiber Size 9 125 micron