Description 0.5m (1.6ft) MPO-8 APC to 4x LC Duplex UPC OS2 Harness is an ultra-short 0.5-meter yellow single-mode cable for high-density 8-fiber to dual-fiber breakout applications. It features an MPO-8 APC female connector splitting into four LC duplex UPC connectors with Type B polarity. This harness provides a high-reliability and low-latency solution for top-of-rack single-mode fiber patching.