We sell USB sticks that contain bootable Ubuntu Operating System variants ready to install or use live. Each USB drive has one Operating System to use. You may choose from the few alternatives. Ubuntu is lighter than Windows and older hardware can benefit from an Ubuntu installation. For older laptops/desktops that do not support USB 3.0 ports, cheaper USB 2.0 thumb drives are sufficient. Ubuntu works perfectly fine with new hardware too and can be an alternative to Windows or Mac OS as well. Ubuntu and variants are free open source software.
Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
Kubuntu is a free, complete, and open-source alternative to Microsoft Windows and Mac OS X which contains everything you need to work, play, or share.
Lubuntu is a fast-performing and energy-saving system using LXDE/LXQT as its desktop environment. Lubuntu comes with lightweight office solutions. You can browse the internet, send receive emails, listen to music and radio streams and watch movies and many other activities typical on a computer.
Xubuntu is an elegant and easy to use operating system. Xubuntu comes with Xfce, which is a stable, light and configurable desktop environment.