brand new and high quality. Feature: Made of great Aluminum alloy material, good heat dissipation performance, this HUB Splitter Expansion is durable to use. USB3.0 hub splitter, high performance, fast transmission speed. 180 degree free rotary, no power required, plug and for play. Wide compatibility, it can connect U disk, card reader, USB mouse, USB keyboard, Scanner, digital camera, sound card, hard disc box and so on. Fully compliant with USB3.0/2.0/1.1 specification. Allow simultaneous operation of up to 3 separate devices all attached to a single USB port. Offer overload voltage and instantaneous current for protection. Compatible systems: for Windows 98SE/ME/2000/XP/WIN7 and so on. Lightweight design enables the hub to be compact and portable, easy to carry with you. Specifications: Item Type: USB3.0 Hub Material: Aluminum Alloy+ABS Size: 64x21x18mm/2.5x0.8x0.7in Color: Silver, for Grey(Optional) Interface: USB 3.0 Function: USB Expansion Suitable Systems: for Windows XP/Vista/7/8/10/for Mac 9.1 above/10.0 Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1 x USB3.0 Hub