Faster transfers, to better pair with your equipment With good cables comes good sound. The LA-UB1 allows you to connect equipment with USB-B ports (such as the FiiO K5 Pro and K9 Pro) to devices with regular USB-A ports (such as desktops and laptops, portable hard drives) to enable fast, high-fidelity signal transmission between them. Tinned copper conductor, more stable and clearer signals The LA-UB1 cable is made of tinned copper wire that offers better shielding to greatly reduce external interference, allowing for clear, stable signals to be transmitted for a clean, pure sound. Sturdy gold-plated connectors The LA-UB1 connectors feature 3μ gold-plating, which allows them to be not only oxidation and corrosion-resistant, but also reduces wear from plugging and unplugging the cable. This means the cable ensures tight connections for fewer accidental disconnections, and ultimately more stable signal transmissions. High-quality aluminium alloy connector shell The custom aluminium alloy connector construction is both luxurious in feel and appearance as well as highly robust against wear and tear - greatly improving the usability of the cable! Protection for the cable ends The ends of the cable have been specially designed to be more resistant against bending and ultimately to last longer. As a result, the cable went through 2500 rigorous swing and tensile experiments in FiiO labs without breaking, a testament to its reliability.