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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 ...
In August 2017, SanDisk launched a 400 GB microSDXC card. [49] In January 2018, Integral Memory unveiled its 512 GB microSDXC card. [50] In May 2018, PNY launched a 512 GB microSDXC card. In June 2018 Kingston announced its Canvas series of microSD cards which were capable of capacities up to 512 GB, [d] in three variations, Select, Go! and ...
These cards were faster than their flash counterparts. Some of the first PCMCIA cards had capacities of 1 to 5 MB and cost US$100 per MB. [18] Other early cards such as the Bee Card contained non-modifiable ROM, Write once read many EPROM or rewriteable EEPROM memory. [19]
The company was founded in 1988 as SunDisk Corporation and renamed in 1995 as SanDisk Corporation; [2] then renamed to SanDisk LLC in 2016 when it was acquired by Western Digital. [3] The company changed its name back to Sandisk Corporation (now with the lowercase "D"), as the result of the planned spin-off from Western Digital, that will occur ...
The card is composed of two detachable parts, much like a microSD card with an SD adapter. The small memory card fits directly in a USB port and has MMC-compatible electrical contacts. With an included electromechanical adapter, it can also fit in traditional MMC and SD card readers.
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.
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