Interface: USB3.0 (USB2.0 interface works with USB2.0 USB1.1 interface works with USB1.1);Connector shape: PC side: USB A (male) USB hub side: USB A (female) x3;Power supply method: Bus power;USB cable length: approx. 10.0cm (excluding connector);Maximum transfer speed: USB3.0 SuperSpeed/5Gbps (theoretical value) USB2.0 HighSpeed/480Mbps (theoretical value) USB1.1 FullSpeed 12Mbps (theoretical value);Supply current: USB3.0 connection: 3 ports total 720mA or less (each port 240mA or less) USB2.0 connection: 3 ports total 400mA or less (each port 130mA or less);External dimensions: Approx. 69.0 mm (W) x 29.0 mm (D) x 12.0 mm (H) (excluding cables);Duration: 6 months Please note that some of the models are made exclusively for Japanese market hence the specifications and interface language is all in Japanese and cannot be changed to a different language. Also the voltage is adopted for Japanese standard ~ 100V ## About us want.IP Inc (a group company of Yahoo Japan) the leading cross-border e-retailer of all kinds of Japan products. We source all the products from official distributors or manufactures] ## Overseas Shipping Information As this is an overseas delivery product it may take up to 2~5 business days to ship out. However there may be a slight delay depending on the local delivery status and customs procedures. ## Warranty Since this product is manufactured for Japanese market warranty is not supported in your country. ## Voltage For electronic equipment it is recommended to use a transformer just in case. This is because electronic equipment for Japan is designed to be used at 100V. (Some products are globally compatible.).