1、Using aluminum alloy material shell, sturdy and durable with good heat dissipation 2、High Definition Multimedia Interface port supports 4K HD, resolution up to 4Kx2K, 3840x2160 at 30Hz, 1080P at 60Hz, the same screen is clearer 3、USB0 transfer rate up to 5Gbps, USB0 support transfer rate 480Mbps, very practical 4、This 5‑in‑1 hub support SD/TF, support dual-disk simultaneous use, provide a lot convenience 5、PVC wire is lightweight, heat‑insulating, moisture‑proof, flame‑retardant, support plug and play 1 x 5‑in‑1 Hub1 x User Manual Item Type: 5‑in‑1 HubWire: PVC wireWire Color: BlackUSB 3.0: Transfer rate 5GbpsUSB 2.0: Transfer rate 480MbpsHigh Definition Multimedia Interface Resolution: 4Kx2K 3840x2160 at 30Hz 1080P at 60HzSD/TF: Multi-disk character (support dual-disk use)