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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 Same build as SD/SDHC, but greater capacity and transfer speed, 32 GB and higher. Standard goes up to 2 TB (not compatible with older host devices). microSDXC: 2009 2 TB [6]
xD-Picture Card, 1000 MB, type M xD-Picture Card, 512 MB, type H A size comparison of an xD-Picture card with a MicroSD card. The original xD cards (Type S) were available in 16 MB to 512 MB capacities. The Type M card, released in February 2005, [13] uses multi-level cell (MLC) architecture to achieve a theoretical storage capacity of up to 8 GB.
First SanDisk logo (1995–2007) Second SanDisk logo (2007–2024) SanDisk (originally Sundisk) was founded in 1988 by Eli Harari, Sanjay Mehrotra, and Jack Yuan. [5] In 1995, just before its initial public offering, SunDisk changed its name to SanDisk, to avoid confusion with Sun Microsystems, a prominent computer manufacturer at the time. [6]
The Secure Digital Ultra Capacity (SDUC) format supports cards up to 128 TB [b] and offers speeds up to 985 MB/s. In April 2024, Western Digital (SanDisk) revealed the world's first 4 TB SD card at NAB 2024, which will make use of the SDUC format. It is set to release in 2025. [53]
All three concepts became obsolete once flash memory prices became lower and their capacities became higher by 2006. [ 20 ] New products of Sony (previously only using Memory Stick) and Olympus (previously only using XD-Card) have been offered with an additional SD-Card slot beginning in 2010. [ 23 ]
The SanDisk iXpand product family, including the iXpand Flash Drive and iXpand Base, is made specifically for use with the Apple iPhone and iPad. [84] [85] [86] The 400 GB SanDisk Ultra microSDXC UHS-I card was designed primarily for use in Android smartphones that include an expansion slot. [87] [88]
SanDisk and Sony develop “Memory Stick Micro” (M2) format – SanDisk/Sony press release, September 30, 2005. SanDisk and Sony announce "Memory Stick Pro-HG" (HG) format – December 1, 2006. Complete Memory Stick® Media Compatibility Information for Sony® Digital Cameras Sony eSupport July 2011.
As of August 2017, microSD cards with a capacity up to 400 GB (400 billion bytes) are available. [ 65 ] [ 66 ] The same year, Samsung combined 3D IC chip stacking with its 3D V-NAND and TLC technologies to manufacture its 512 GB KLUFG8R1EM flash memory package with eight stacked 64-layer V-NAND chips. [ 8 ]
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