Laptop Docking Station -USB PCI E Expansion Card Highlights Generic Brand USB PCI E Expansion Card Description: Fitment: For all windows system, LINUX and MAC. PCI-E X1 to X4 cards powered with multi-layer shielded cable will not weaken the signal within 3 meters. Overcurrent protection (surface mounted fuse) to protect your components in the event of a short circuit. Multiple voltage regulation components (voltage regulation diode and linear regulator). Plug and play, no driver needed. Specification: Material: ABS Plastic Black A Length: 425mm/16.73inch Black B Length: 300mm/11.81inch Blue Length: 720mm/28.35inch Package Include: 3pcs PCI-E X1 Adapter Card 3pcs USB 3.0 Cable 3pcs PCI Riser Card- E X1 3pcs Note: Please allow 0.5-1cm differs due to manual measurement. Actual items may have some color difference with photos. Thank you for your understanding!