Note: 1. Need your motherboard BIOS supports PCIE splitting working mode. Pls check it carefully before buying.2. This product belongs to a accessories, can not that all configurations can reach 4.0.3. There is no that it is compatible with all motherboards, video cards, extension cables, systems.Please confirm before purchase.Product description: PCIE X16 full bandwidth 3.0, GEN3 protocol.Gold finger sinking process, increase gold thickness to 5U.with Slim sas 8i connector.with 1 in 4 clock split IC.with power on LED indicator.Low profile PCB design to minimize size.Support transferring 2 ports 4 ports to 4xnvme SSD.Support transferring 1 full band graphics card or 2pcsX8 bandwidth graphics card.Material: PC+metalcolour: BlackPackage Contents: 1 x Expansion CardOnly 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.