1. EXPANDING EXTERNAL CONNECTIONS: A graphics card docking station is an external device that connects to a computer(including laptops, small PCs, handheld consoles, etc.) through fit for Thunderbolt 3, fit for Thunderbolt 4 or USB4 interfaces, allowing the computer to expand a PCIE 16X slot 2. PCIE INTERFACE: The PCIE 16X slot of the external graphics card dock is mainly used for inserting desktop graphics cards. By connecting an external graphics card, plug and play 3. MULTIPLE FUNCTIONS: The EGPU enclosure significantly enhances the graphics processing capabilities of computers with weak GPUs, meeting the demands of video editing, 3D rendering, and large scale games 4. SINGLE MACHINE USE: Power the graphics card docking station with a 12V DC power adapter or PD spoofing cable, and can easily drive low power devices such as network cards and hard disks 5. COMPATIBLE MODEL: PCIE 16X slot is compatible with fit for AMD graphics cards(fit for RX full series), graphics cards(7-40 series), PCIE X4 solid state drives, PCIE sound cards, PCIE network cards(10G), etc. Item Type:External GPU Main Control: Fit for JHL7440 Compatibility: Fit for Thunderbolt 3, Fit for Thunderbolt 4, USB4 PCIE 16X Slot Compatible: Fit for AMD graphics cards(fit for RX full series), graphics cards(7-40 series), PCIE X4 solid state drives, PCIE sound cards, PCIE network cards(10G), etc. Reverse Charging: Not supported Hot Plug: Supported Data Cable Length: Approx. 1m / 3.3ft Note:Fit for DMA catch cards are not supported. Color:As Shown Material:Aluminum Alloy Package Contents: 1 x Graphics Expansion Dock 1 x Data 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.