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.
The original MMC standard allowed for a maximum of 1GB, however, newer versions of the technology have increased this up to a maximum of 32GB. SD is available in 3 variants: SD Memory Cards, SDHC and SDXC. SDHC have a capacity limit of 32GB. SDXC are the newest types of cards and these have a theoretical limit of 2TBs.