1,4K resolution output, maximum support 3840X2160 at 30Hz resolution. 2,Type‑C with power supply function to charge laptops at full speed. 3,The USB 0 transfer rate is up to 5gbps, and it can be connected to a mouse U disk, keyboard, and telephone. 4,This four‑in‑one network adapter supports HDMI or USB 0 or RJ45 or Type‑C interface. 5,Manufactured to meet standard specification, strictly follow factory quality control. 1 x Four-in-One Network Adapter Condition: 100 percent brand newItem Type: Network adapterMaterial: Aluminum alloyColor: As pictures shownHDMI: 4k (3840x2160 at 30hz) or 1080p or 720pType C: Charging only, 20v or 3a, 5-80wRJ45: 10 or 100mbps.USB 3.0: Transfer rate 5gbps, connect mouse u disk, keyboard, phone.Interface Type: HDMI or USB 3.0 or RJ45 or Type‑CCompatible Devices:for OS X air pro or tablet pro or for dell xps13 15 or for dell precision5510 or for hp spectre x2 or for hp spectre x360 or for hp elitebook folio g1 or for hp elite x2 1012 g1 or for acer switch for alpha 1 or for acer spin7 or for chromebook r13 or for google chromebook pixel or for lenovo 900 910 or for thinkpad x1 or for millet airbook or lg g5 or for sumsang notebook or for galaxy s8 s8 s9 note8 9 10 or for Huawei matebook or p20 30 40 pro or for mate10 20 30 or for millet 9 10 or for oneplus 8. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.