USB 3.0 hard disk cases (also known as HDD enclosures or casings) are widely available in Kenya to convert internal 2.5-inch or 3.5-inch laptop and desktop hard drives (HDDs) or solid-state drives (SSDs) into portable external storage devices. These cases support SuperSpeed data transfer rates up to 5 Gbps over USB 3.0, making them ideal for quick data backups and system recovery.