Thanks for adopting Ranko's latest BLACK WARRIOR, aka Xuanwu, series products. Xuanwu is the divine beast representing 

the north, symbolizing protection and stability. The series is named the "Xuanwu" primarily because of a saying in northern 

China: "In the season crossing of spring and summer, Xuanwu shall rise." This coincides with the spring and summer seasons,

signifying the mighty divine beast's emergence. With this in mind, Ranko is launching the new BLACK WARRIOR Series of

high-fidelity audio cables. These products are personally led by the renowned American audio master Jack Shyu, who leads

the Ranko audio design team to develop this brand-new BLACK WARRIOR Series in person. After continuous research, 

development, and quality improvements, this new series of audiophile-grade cables has finally been approved. Whether 

it's the use of high-purity single-crystal copper clad silver (GC-OCC) and terminated with high-end Ranko’s comprehensive 

connectors, every element is meticulously designed with audiophile-grade considerations. This series once again prove 

Ranko as a leader in the audio cable industry—practical, valuable, and capable of reproducing beautiful sounds.

The DC power cables in this series are also composed of thick silver-plated single-crystal copper. 

The main feature of this structure is the low resistance and high energy capacity of the silver-plated single-crystal copper,

 ideal for DC voltages ranging from 5V to 25V. With high-density shielding, 

these cables are especially recommended for communication and digital audio

 peripheral devices requiring low voltage DC supply. They are definitely worth trying