StarTech.com 7m Fiber Optic Cable - Single-Mode Duplex 9/125 - LSZH - LC/LC - OS1 - LC to LC Fiber Patch Cable (SMFIBLCLC7) Yellow 23 ft / 7 m LC to LC Single-Mode Duplex 9/125 Tester and they filter out harmful

and they filter out harmful Blue light by up to 30 percent

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PVC jacket for added durability

50 M6 Cage Nuts

StarTech.com 7m Fiber Optic Cable - Single-Mode Duplex 9/125 - LSZH - LC/LC - OS1 - LC to LC Fiber Patch Cable (SMFIBLCLC7) Yellow 23 ft / 7 m LC to LC Single-Mode Duplex 9/125 Tester and they filter out harmfulThe SMFIBLCLC7 7m LC to LC Single Mode Duplex Fiber Cable features 9 125 micron fiber for high speed, high bandwidth data transmissions over Gigabit Ethernet and Fiber Channel networks, with support for duplex single mode applications. This LC LC patch cable is housed in a LSZH (Low Smoke, Zero Halogen) flame retardant jacket, to ensure minimal smoke, toxicity and corrosion when exposed to high sources of heat, in the event of a fire an ideal solution