Features: Note: Does not include graphics card and power supply! Upgraded version of PD85W charging This version supports reverse PD charging of up to 85W for laptops through ports. Resolvedthe issue of older versions of 65W being unable to meet certain laptop needs. The TH3P4G3 ThunderboltCompatible Base is used to connect laptops with Thunderbolt4/3 interfaces to external graphics cards. Then laptops can play games or do tasks that require high-performances graphics cards. It does not support Macbooks with M1andM2 chips. When you use theMac operating system on Macbooks, it only supportsAMD version graphics cards. When you use the Windows system on Macbooks, it only supportsNvidia version graphics cards. Compatiblewith most mainstream graphics cards and supports 85W reverse charging (suitable for laptops); Equipped with SFX andATX brackets for easy installation of graphics cards, power supplies, and docking. Specifications: Material：Metal Item: TH3P4G3 Graphics Dock with SFX Case Support:Thunderboltcompatible 3/4 USB3.0: Max5V 2A Speed: 40GB/S Size: Mixed USB3.0 port extension, 5Gbps Power: supportATX/SFX/FLEXother Thunderboltcompatible: Max5V 3A Thunderboltcompatible/PD: Max85W Package Includes: 1PC TH3P4G3 Thunderboltcompatible GPU base (85W PD) 1PC 0.5meter Thunderboltcompatible data cable 1PC SFX power bracket and base 1PC ATXpower bracket and base 1PC SFX chassis 1PC User Guide note: It does not support the Macbooks withM1 andM2 chip. When you use MacOSfor Macbooks, it only supportAMD version graphics card. And when you use Windows system for Macbooks, it only supportNvidia version graphics card.