The USB ProSeries clearly stands out from the standard accessories. Robust and tight metal covers are ideal properties for highest quality demands. Use the USB-C® coupler to extend a existing USB-C® cable with a second USB-C® cable. Make sure that the maximum length of 2 meters is not exceeded. If the distance is too long, the 40Gbps can not be reached. This adapter supports USB4® 40 Gbps and is backwards compatible with SuperSpeed USB and Hi-Speed USB. If possible, use cables of the same USB version. If you are using two different USB versions, its always downgrading to the older standard. Signals will not changed or amplified with this adapter. Info: not all devices with USB-C® interface support the fast charging capability (PowerDelivery), the transmission of video signals (DP-Alternate Mode) or data transfer of 5/10/20/40 Gbps. Please contact your device manufacturer for more informations. · Connections: USB-C® jack to USB-C® jack · USB Version: USB 4.0 Gen 3x2 (USB4® 40Gbps) · Bandwidth up to: 40 Gbps · Supports: DP-Alternate Mode DisplayPort 2.0 (up to 8K/6K/5K/60Hz, 4K/120Hz, 2x 4K/60Hz), PD up to 240W (48V/5A), SuperSpeed USB 5/10/20Gbps, PCI Express 3.0, Bidirectional data transfer · Compatible to all USB-C® interfaces (i.a.): Hi-Speed USB, SuperSpeed USB, Thunderbolt™, USB4® · Features: USB-C® reversible interfaces · Plug cover: metal (high quality aluminum alloy casing) integrated molding process, will not fall off · Color: grey (space grey) FAQs: My device is not recognized or do not start charging what should i do? If no device is detected or no charging current is displayed, unplug the USB-C® plug on the USB-C® jack of the adapter, turn the USB-C® plug and replug it, then try it again.