Supports high-speed PCI-E 1X, 4X, 8X, and 16X cards, but only works at 1X speed. The high-speed flex cable is for 1U, 2U, and ATX/BTX chassis. Uses a high-quality flexible cable that is extremely soft and compact. Easy to install and requires no software drivers. Gold finger protective cover and dustproof design. Experienced design and materials durable for high frequency and low attenuation. PCB wrapped and fixed with bolts and nuts to prevent tearing and short circuit for PCB cable solder points. Stable for PCIe Gen3 8Gbps or higher with high-quality axial cable. Color: Black Material: ABS + Metal Size: Total Length: 17cm Cable Length: 15cm Package Contents: 1 * PCI-e Extension Cable Only the above package content, other products are not included. Note: Light photography and different displays may cause the color of the item in the picture to differ slightly from the real one. The allowed measurement error is +/- 1-3 cm.