pcie 4.0 riser cable adopt high quality hand-soldered gold pin, allowing for maximum conductivity and signal integrity. Using cables with pure copper tinned cores, this psu cable extension gives you full-speed, stable and almost attenuation-free signal transmission silver-plated cable with up to 64GBS, in line with PCIE 4.0 transmission standard and remains backward compatible with a maximum transfer speed. Enhanced 12V power supply with 12PIN silver-plated cable delivers 12V to meet the needs of 3090 high-power graphics cards With segmented design, this gpu riser cable allows for airflow, making it easy to reduce operating temperature and improve overall system performance Plug and play, no BIOS setup required. Featuring a cable protector that effectively enhances the durability of the extender as well as prevents cable damage, even if the extender is folded or twisted, this gpu extension cable provides the best connectivity and lifespan Specifications Hign-concerned Chemical:None Type:PCI-E Riser (The product printed words depending on the batch, but this does not affect use) Color: Black Material: PCB size: 25CM Package Contents: 1*PCI-E 4.0 Riser Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.