Smartphones

USB is the most common bus used to connect a huge variety of external devices to PCs, laptops and servers. It is not only used by peripherals such as keyboards and mice, but also storage devices such as external drives, smartphone and tablets and more.

These mains sockets feature USB ports - either USB-A, USB-C or a combination of both, enabling you to easily charge multiple devices such as smartphones and tablets at once.

Memory cards are a type of portable flash storage device that are commonly used in portable electronic devices such as digital cameras, some mobile phones and various handheld devices.

These MicroSD cards are segregated by their bus speed - either High Speed or Ultra High Speed (UHS) - this defines the maximum throughput speed of the card; UHS I or U1 - 104MB/s; UHS II or U2 - 312MB/s; and UHS III or U3 - 624MB/s.

They are then broken down into size groups - MicroSDHC (High Capacity up to 32GB ), MicroSDXC (Extended capacity up to 512GB) and are denoted with ‘speed class’ or ‘video class’ ratings of C10 or V10 (up to 10MB/s), V30 (up to 30MB/s), V60 (up to 60MB/s) and V90 (up to 90MB/s), which define their minimum sequential write speeds for higher performance cards.