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HOME > Product > Cables & Hubs > Cupola™ 7 Ports USB2.0 Desktop Hub with power adapter
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Cupola™ 7 Ports USB2.0 Desktop Hub with power adapter
CHB251U2
USB 2.0 • 7 Ports available • Power adapter included for more power demending peripherals • Desktop design with weighted base
White
$49.00
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No more concern about running out available USB port for your peripherals/devices - Simply plug CUPOLA(TM) into the system and it instantly enables all seven ports inside the hub so that upto seven USB devices can be connected. DC power adapter is included so that the hub can connect and power up those heavy power required USB devices such as printers, scanners, etc.

Features & Advantages

•  Built with 7 independent USB2.0 high speed port, supports transfer rate of 1.5/ 12/ 480Mbps
•  AC power adapter included for high power demending USB devices such as some digital cameras, printers, scanners
•  Could be operate both with ou without the included power adapter
•  Both self-powered and bus-powered mode are automatically detected
•  Weighted base for desktop fixed placement
•  LED status light included - Link & AC power
•  Fully compliant with USB2.0 specification. Backward compatible with USB1.1
FACT

QUESTION: Why AC power adapter when the hub can suppose to be functioned without it?

ANSWER: With bus-powered mode (without power adapter) the hub will supply each device 100mA of power which is usually enough for most mice, joypads, and other low-power devices. But for some higher power demending devices such as digital camera, printer, scanner, 100mA is simply not enough. Once an AC power adapter is connected it provides 500mA to each downstream port, not only allowing those USB devices to work but also letting it able to make connection to other hubs as well.
Specification

•  USB2.0 Transfer Rate: up to 480Mbits/second, backward USB1.1 Transfer Rate up to 12Mbits/s
•  Power Model: 2 ways power modes supported- BUS-powered mode WITHOUT power adapter (DC +5Volts supplied by USB port); and Self-powered mode WITH power adapter supplying 500mA to each downstream port
•  Connection: Plug-and-Play and hot-swappable connection
•  Power Supply: AC input: 110 - 240V auto-switching

 
 
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