Uses standard USB3 A to B cable. Works without power, but has a power socket if devices need more power. Included power adapter is four amps, which suggests that each port can run at its full USB2 500mA rating (but has a warning sticker suggesting only two ports at a time should be used for that...
Uses standard USB3 A to B cable. Works without power, but has a power socket if devices need more power. Included power adapter is four amps, which suggests that each port can run at its full USB2 500mA rating (but has a warning sticker suggesting only two ports at a time should be used for charging devices that draw higher current.) The hub is not technically seven ports, internally it is a four port hub plugged into another four port hub in a cascaded configuration (see below.) The USB3 part has no transaction translator (TT) meaning there is only a single 480Mbps channel available that must be shared by any and all USB2 devices. (However this is a minor gripe because at the time of writing, there are no USB3 hubs with TTs.) It does mean however that connecting USB2 devices will not slow down USB3 ones, which operate on a completely separate 5Gbps channel. So if you connect a bunch of USB2 devices, performance will be no different from connecting them to a USB2 hub - the USB3 part offers no performance gain for USB2 devices. This device contains two four-port hubs in one. The ports labelled 1, 2, 3 and 4 are connected to the "lower" hub. The lower hub is connected to the first port on the "upper" hub, and the remaining ports on the upper hub are labelled 5, 6 and 7 on the device. The upper hub is what gets plugged into the PC. This means ports 1-4 may have a slightly greater latency as there is an extra hop the data must go through compared to ports 5-7. Because there is no TT, plugging the device in looks like there are four hubs connected. Two cascaded USB3 hubs (one hanging off the other) and two cascaded USB2 hubs. The USB2 and USB3 parts are completely separate, other than the signals travelling over the same cable (but on different wires in the cable.) Very nice hub. Until someone produces a multi-TT USB3 hub (that can transfer the USB2 data over the faster USB3 channel), this is the one to get.
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