Fangrui Product Details Driver-free, Plug And Play Extendable 4-way Pcle Gen 2x1 Quick Access To Cm4 Official Expansion Board Effect High-performance Main Control Chip: Equipped With Asmedia Chip, A Subsidiary Of Asus, Which Can Support Pcle 2.0 Full-speed Mission And Stable Operation, And The Performance Is Greatly Improved Compared To General Chips Support Additional Power Sockets: Support Pcle Interface Power Supply While Providing Additional Power Sockets, Support 5v/12v Power Supply, To Ensure Stable And Sufficient Power Supply Colour:black Material:pc The Actual Product May Have Slight Color Difference Or Difference, Which Will Not Affect The Use Package Contents: 1 * Expansion Card 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.