55m (180ft) Pre-terminated MPO trunk cable, 72 Fibers, 6 x MPO-12 APC (Male) to 6 x MPO-12 APC (Male) Single Mode (OS2) Type B, LSZH（OFNR）, 0.35dB Max, Yellow, breakout 80cm

MPO branch patch cables are primarily used in high-density fiber cabling within data centers. They facilitate connections between MPO patch panels, trunk cables, and equipment ports. These cables are especially suitable for large-scale parallel interconnections in Spine-Leaf architectures.

The selection depends on the desired polarity:

Key up to Key down: Used for straight-through connections to ensure consistent polarity across the fiber link (commonly used in standard Type A connections).
Key up to Key up: Employed in specific topologies, such as loops or cross-connections. The choice should align with the cabling system's polarity design (Type A/B/C).

These cables reduce the number of required fibers, increase port density, and simplify inter-rack cabling. In large-scale data centers, they help minimize cabling volume and lower both installation and maintenance complexities.