This convertor expands the system by one MCIO interface. It can be connected e.g. one SSD by using an optional cable. The card transmits PCI Express signals using the 4x pcie protocol.What is mini cool edge Io (MCIO): MCIO cables are designed for data center, networking and telecommunications markets that use SAS, PCIe, Ethernet and othersignal protocols. The solution can support cable to board and card to board applications in system, which include chip to chip, chiptomodule, chip to board and card edge option. High-performance cable for networking and server equipment: The MCIO Mini Cool Edge IO is designed to support a wide range of protocols, including SAS, PCIe, Ethernet, and more, ensuring optimal performance for your equipment. Industry standards: Support for SAS 3.0/4.0, PCIe Gen 3/4/5, 25G Ethernet, and 56GT/s PAM4 means that you can trust that your equipment perform at optimal levels without any signal loss or degradation. Material: plastic+metal colour: green Package Contents: 1 x PCIE to X4 MCIO Adapter 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.