The number of
USB 2.0 ports provided in the design of the NAS server.
USB connectors are used in computer technology to connect various external peripherals. In the case of NAS servers, we are most often talking about external drives — flash drives, hard drives, etc. In this way, you can transfer information from an internal drive to an external one (for example, for backup purposes) or vice versa, and even expand the total working volume of the server . In addition, on models with a VGA output (see below), a keyboard can also be connected to USB, and on models with a print server function (see "Software Features"), respectively, a printer. For added convenience, the USB connector can be placed on the front panel (see below).
As for USB 2.0 specifically, today this version is generally considered obsolete due to the relatively low speed (up to 480 Mbps) and the low power supplied through the connector. Peripherals of newer versions can be connected to such a port, however, the speed will be limited by the capabilities of version 2.0, and the power supply may not be sufficient. Therefore, in modern NAS servers, such connectors are quite rare — mainly as an addition to the newer and faster USB 3.2 gen1 (see below), designed for relatively unpretentious peripherals like keyboards.
