[With Switch] 4-port USB 2.0 hub, compact and convenient design. The cable length is approximately 10cm (including the connector). Operation confirmed. There are minor scratches from use. - Brand: GREEN HOUSE - Model: GH-UH204SBK L000/1849 - Number of ports: 4 ports - USB standard: USB 2.0 - Color: Black The following is an explanation from the official page: ■ 4-port USB hub compatible with USB 2.0 standard Can connect up to 4 USB peripherals such as card readers, mice, digital cameras, and USB flash drives. ■ Equipped with power switches to turn ON/OFF the power of each USB port Even USB peripherals without a power switch can be turned OFF without disconnecting them. By turning off the power to USB peripherals such as card readers that are not normally used, you can reduce power consumption and also reduce the load on your computer. ■ Power switches with LEDs to indicate ON/OFF status Each USB port's power switch has an LED, so you can see the status at a glance: ON when lit, OFF when not lit. ■ Bus-powered type, no AC adapter required It is a bus-powered type that can be used only with power from the computer, so no AC adapter is needed. Furthermore, it is compact, making it ideal for carrying around.