Features: 1. Ultra-Mini And Ultra-Portable. The Body Size Is Characterized By Thinness And Lightness. The Volume Is Only 0.1l And Can Be Put Into Your Pocket At Any Time. 2. You Can Use 60w Power Pd Fast Charging To Power Low-Energy Consumption Devices, Or Use Traditional Power Supplies To Power High-Power Devices. 3. The 22gbps Pcie Interface Connects To The Graphics Card At High Speed, Allowing Thin And Light To Easily Play 3a 4. Rendering Or Video Editing, Ai Painting Or Model Training, With The B Graphics Card Dock, You Can Get A Desktop-Level Experience 5. Professional Installation Is Required To Avoid Product Damage. Description: 1. Model: Laptop for Thunderbolt3/4 Graphics Card Expansion Dock Set: E 60cm Usb4 Data Cable+FLEX Aluminum Alloy Bracket Material: ABS+acrylic+aluminum alloy colour: As shown Package Contents: 1 x Expansion Dock 1 x 60cm Usb4 Data Cable 1 x FLEX Aluminum Alloy Bracket 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.