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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.
Same build as miniSD but greater capacity and transfer speed, 4 GB to 32 GB. 8 GB is largest in early-2011 (not compatible with older host devices). microSDHC: 2007 32 GB [4] Same build as microSD but greater capacity and transfer speed, 4 GB to 32 GB. [5] (not compatible with older host devices) SDXC: 2009 1 TB
A flash drive (also thumb drive, memory stick, and pen drive/pendrive) [1] [note 1] is a data storage device that includes flash memory with an integrated USB interface. A typical USB drive is removable, rewritable, and smaller than an optical disc , and usually weighs less than 30 g (1 oz).
CFexpress is a standard for removable media cards proposed by the CompactFlash Association (CFA). The standard uses the NVM Express protocol over a PCIe 3.0 interface with 1 to 4 lanes where 1 GB/s data can be provided per lane.
Flash storage always needs to move some old data around while writing, to ensure the flash's finite write life is consumed equally. Microdrives are better at handling power loss in the middle of writing: a bug in the wear levelling algorithm can cause data loss in flash storage were a card unplugged at the exact wrong time. Data on rotational ...
With the increasing popularity of Secure Digital around 2010, Sony started to include SD in their devices, marking a surrender by Sony of its format war in the memory-card business and the end to further serious development of the format. [3] Despite this, Sony continues to support Memory Stick on certain newer devices through the use of ...
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