Features: 1. Product function: This product is a portable multi-functional conversion line, and it converts into versatile applications (20VPD + Card Reader Data + 2 * USB3.0 HUB + Hdmi 4K Video) via digital signal inputs with USB 3.1 Thunderbolt3 (PD mode) interfaces. 2. Product application: it perfectly matches the latest undefined, and it converts into (20VPD + card reader data + 2 * USB3.0 HUB + Hdmi 4K video) multi-functional application output through this conversion line, thus meeting the user's perfect display device connection scheme, PD, Data and other functional application schemes. 3. Type-c Thunderbolt3 interface, can achieve: data transmission, bidirectional charging, and video transmission three functions. 4. Type-c Thunderbolt3 interface, the charging power is up to 100W and theoretical transmission speed is up to 40Gbps. 5. High-performance digital chip processing; transfering data is faster and it supports hot-swappable. Follow USB3.0 transmission specification and 5Gbps theoretical transmission speed. Specification: 1. Name: Dual Type-c hub to hdmi 4k hub + card reader + Type-c data + lightning 3 interface 2. Weight: about 47g 3. Product Size: about 12.6 x 3 x 1cm 4. Input Interface: The latest USB3.1 Type-C interface 5. Output Interface: HDMI interfaces, port USB3.0 interfaces and a SD interface, a TF interface, Thunderbolt3 interfaces, Type-c interfaces 6. Support memory card Mini SDHC, SD, TF, MicroSD, SDHC 7. Operating System Requirements: MacOS Included: 1 x USB-C Hub100% Hot and High QualityWe will carefully test every item before shipment.Notes:Due to manual measurements, please allow an error of 1-3 cm.Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product.If there is a problem with the product, please contact us.Thank you for understanding.FEEDBACK:1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.2.If you don't satisfied our products,pls contact us before you leave negative feedback.we guarantee we will 100% slove any problem for you and make you satisfied.SERVICE:1.We care about our valued customers,and will always try to help you,hope to establish long business with you.2.Please contact us by Rehmie.com Customer service before leaving any negative feedback or opening and dispute on the site. Please give us the opportunity to resolve any problem.Thank you.