Features: <br>classic design, multi-color shell, no indicator light, no external power supply, suitable for desktop andputers<br>hot plug-in support, low power consumption, products suitable for u disk, card reader, usb mouse, usb keyboard, scanner, digital camera<br>digital cameras, usb sound cards, hard disk boxes and other devices, expand four usb interfaces, each power supply up to 500 ma<br>using the second generation usb hub controller, no driver, plug-and-play, hot plug-and-play support, up to 127 usb devices. <br>all the first classponents are used to ensure the stability of the products. <br><br>specifications: <br>transport interface: usb2.0/usb3.0<br>operating system: win95 osr2/98se/me/2000/xp, linux2.4andmac os8.5vasta version above. <br>transmission rate: up to 480mbps. <br>power supply: usb 5v/600ma<br>external power supply: 5v/1.5a-2a<br>hub usage temperature: 0 c -70 c<br>storage temperature of hub: 10 c -90 c<br>the humidity range of hub is 10%-90%non_condensing<br>hub storage humidity range: 10%-90% non-condensing<br>hub's ontology consumption current: 50-60ma<br>size: 56.3*18*23.5mm <br>color: black<br><br>package included: <br>1 x usb hub <br><br>notes: <br>1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. <br>2. Due to the manual measurement and different measurement methods, please allow 1-3cm deviation. Thanks! <br>