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.
SDHC (Secure Digital High Capacity) Memory Cards: These are SD memory cards but with a higher capacity. Original SD cards only went up to 2GB, so SDHC was invented with a maximum capacity of 32GB. They are identical in shape and size, but they are different media types.