Ideal for Long-Distance & High-Speed Installations - This premium singlemode fiber optic cable (9/125μm) is engineered for both indoor and outdoor applications. Perfect for extensive installations, it excels in long-distance runs with high-speed data transmission up to 40 km (25 miles) without the need for signal repeaters, and even more with amplification or special technologies. Suitable for vertical tray use without environmental air, it easily runs between floors via cable risers or elevator shafts.