4-in-1 USB hub to headphone multi-port adapter The 4-in-1 USB hub expands your USB A port to show you three USB 3.0 ports, one USB 2.0 port, and a 3.5mm headphone audio jack. Massive expansion, HD, ultra-fast data transmission, mobile phones. Headset/microphone combination, can solve the problem of no sound and sound card damage when connected to the computer; Fast charging, easy to carry, all-in-one USB C adapter. Interface 1: USB 2.0 Male Interface 2: USB 3.0 Female Interface 3:3.5mm (1/8) earphone audio Material: Aluminum alloy Color: Silver gray Packaging: 1*4-in-1 USB Docking Station with 3.5mm Audio Headphone + Microphone Jack Hub Adapter Note: Phones/tablets need to support OTG. See more?Note?TRRS1/8 (3.5mm) consists of four headphone and microphone audio jacks, and adopts the international standard wiring method. If you insert a plug or TRS3.5mm plug that is not connected to the international standard, it is easy to lose sound or make noise. USB A docking station hub port can work at the same time, say goodbye to repeated plug and pull, 1 USB3.0 interface to solve the problem of computer USB interface scarcity, 480Mbps high-speed transmission, picture files can be easily transferred in a few seconds, 3 USB3.0 transmission speed up to 5Gbps, picture files can be easily transferred in a few seconds,. Compatibility: Compatible with most USB-A and 3.5 headphone jack devices, such as printer, mouse, keyboard, flash drive, portable hard disk, microphone, stereo, card reader, etc. Aluminum alloy material, with good heat dissipation, wear resistance, scratch resistance, can be used for a long time. Small size, easy to carry and store, without any drive, plug and play. The 4-in-1 USB multi-interface converter extends more functions for computers, mobile phone headphone and other devices :1*USB A2.0 interface, 3*USB A3.0 interface and 1*3.5mm audio interface, which can connect headphones, microphones, speakers, etc., supporting the dual function of listening + speaking, so that your computer or laptop can use more devices at the same time.