This allows a user to take advantage of the wider range of modern MMCs available[9] to exceed the historic 2 GB limitations of older chip technology.

While Siemens exited the mobile phone business completely in 2006, the company continues to use MMC for some PLC storage leveraging MD-MMC advances.

Version 4.x cards are fully backward compatible with existing readers but require updated hardware and software to use their new capabilities.

MMCmicro cards have the high-speed and four-bit-bus features of the 4.x spec, but not the eight-bit bus, due to the absence of the extra pins.

The MiCard is a backward-compatible extension of the MMC standard with a theoretical maximum size of 2048 GB (2 terabytes) announced on 2 June 2007.

At the time of the announcement, twelve Taiwanese companies (including ADATA Technology, Asustek, BenQ, Carry Computer Eng.

It was expected to save the 12 Taiwanese companies who planned to manufacture the product and related hardware up to US$40 million in licensing fees, which presumably would otherwise be paid to owners of competing flash memory formats.

The currently implemented embedded MMC[13] (eMMC or e.MMC) architecture puts the MMC components (flash memory, buffer and controller) into a small ball grid array (BGA) IC package for use in circuit boards as an embedded non-volatile memory system.

This is noticeably different from other versions of MMC as this is not a user-removable card, but rather a permanent attachment to the printed circuit board (PCB).

The eMMC controller hardware and firmware lifts the burden on the host system by performing error correction and data management.

[17] Modern computers, both laptops and desktops, often have SD slots, which can additionally read MMCs if the operating system drivers can.

While few companies build MMC slots into devices as of 2018[update], due to SD cards dominating the memory card market, the embedded MMC (e.MMC) is still widely used in consumer electronics as a primary means of integrated storage and boot loader in portable devices.

In 2004, a group of companies—including Seagate and Hitachi—introduced an interface called CE-ATA for small form factor hard disk drives.

[22] The game card format used on the PlayStation Vita was found to be based on the MMC standard, but with a different pinout and support for custom initialization commands as well as copy protection.