UM IP gateways. IPv6 support for UM IP gateways. Enabling and disabling a UM IP gateway. Overview of UM IP gateways. Traditionally, gateway is a term that describes a physical device that connects two incompatible networks.
SDXC. SDXC is the next version of the SD standard, which is designed to allow storage capacities from 32 GB to 2 TB (Terabytes). SDXC cards in current production have capacities up to 64 GB only. They are formatted with exFAT file format.
When it comes to storage, there are three different types of card: SD, SDHC (High Capacity) and SDXC (eXtended Capacity). Originally, an SD card could hold up to 2GB of data using Microsoft's FAT-12 or FAT-16 file format. This was a huge amount in 1999, and most cards stored a lot less.