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2. CompactFlash - Wikipedia

   en.wikipedia.org/wiki/CompactFlash

   CompactFlash IDE (ATA) emulation speed is usually specified in "x" ratings, e.g. 8x, 20x, 133x. This is the same system used for CD-ROMs and indicates the maximum transfer rate in the form of a multiplier based on the original audio CD data transfer rate, which is 150 kB/s.

3. Comparison of memory cards - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_memory_cards

   Card family Standards organizations Varieties Entry date Maximum commercially available capacity Picture [1] Main features CompactFlash: SanDisk: I 1994 512 GB (CF5 128*2 50 bytes) Thinner (3.3 mm), flash only, now up to 512 GB, although standard goes up to 128 PB since CF 5.0 [2] II Thicker (5.0 mm), older flash, but usually Microdrives, up to ...

4. MultiMediaCard - Wikipedia

   en.wikipedia.org/wiki/MultiMediaCard

   While few companies build MMC slots into devices as of 2018, 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. eMMC provides a low-cost [20] flash-memory system with a built-in controller that can ...

5. SD card - Wikipedia

   en.wikipedia.org/wiki/SD_card

   SanDisk again announced pre-loaded cards in 2008, under the slotMusic name, this time not using any of the DRM capabilities of the SD card. [145] In 2011, SanDisk offered various collections of 1000 songs on a single slotMusic card for about $40, [ 146 ] now restricted to compatible devices and without the ability to copy the files.

6. Memory Stick - Wikipedia

   en.wikipedia.org/wiki/Memory_Stick

   In a joint venture with SanDisk, Sony released a new Memory Stick format on February 6, 2006. The Memory Stick Micro (M2) measures 15 × 12.5 × 1.2 mm (roughly one-quarter the size of the Duo) with 64 MB, 128 MB, 256 MB, 512 MB, 1 GB, 2 GB, 4 GB, 8 GB, and 16 GB capacities available. The format has a theoretical limit of 32 GB and maximum ...

7. Memory card - Wikipedia

   en.wikipedia.org/wiki/Memory_card

   Nano Memory (NM) card; MU-Flash (Mu-Card) (Mu-Card Alliance of OMIA) C-Flash; SIM card (Subscriber Identity Module) Smart card (ISO/IEC 7810, ISO/IEC 7816 card standards, etc.) UFC (USB FlashCard) (uses USB) FISH Universal Transportable Memory Card Standard (uses USB) Intelligent Stick (iStick, a USB-based flash memory card with MMS)