This paragraph refers to the USB connector interface. The main difference between the interface versions is speed. It is worth noting that the speed of the input connector does not yet indicate the overall throughput, since the simultaneous connection of
flash drives,
phones, memory cards slows down data transfer, which anyway is limited by the interface for connecting the device itself to a PC or
laptop(item "Connection interface").
- USB 2.0. The outdated version 2.0 provides data transfer rates up to 480 Mbps. Found only in USB A ports.
- USB 3.2 gen1. The previous names of the USB 3.1 gen1 and USB 3.0 standard (they know how to confuse). This version provides 10 times the maximum speed (4.8Gbps) as well as higher power supply, which allows you to connect power-hungry devices and large splitters.
- USB 3.2 gen2. Further improvement of the USB 3.2 gen1 standard (and, as is customary, the previous name USB 3.1 gen1 and simply USB 3.1, which was renamed more than once), made it possible to achieve a maximum speed of 10 Gbps and even higher power for external devices.
The presence
of a micro USB port for connecting peripheral devices in the design of the hub (or a card reader with a hub function — see "Type").
The main scope of microUSB is portable equipment — smartphones, tablets, etc. Accordingly, it makes sense to purchase a hub with such a connector if you want to connect peripherals that were originally designed for mobile gadgets to a PC — for example, flash drives for smartphones with USB OTG function. Usually there is only one microUSB connector — more is simply not required.
The length of the cable supplied with the device. Mostly relevant for models with a non-removable cable that cannot be replaced.
Light indicator, indicating that data is currently being exchanged between the memory card and the computer to which the card reader is connected. This allows you to avoid disconnecting the card reader during operation, which is fraught not only with data loss, but even damage to the device.
