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SD v3.0 brought Extended Capacity (SDXC) [15] specifications offering memory cards with up to 2 TB of storage and Ultra High Speed – bus transfer speeds of up to 104 megabytes per second in 2009. [16] SD versions 4.0, v4.10 and v4.2 were introduced between 2011 and 2013.
Same build as SD/SDHC/SDXC, but greater capacity and transfer speed. Standard goes up to 128 TB (not compatible with older host devices). SmartMedia: Toshiba: 3.3/5 V 1995 128 MB Very slim (45.0 mm × 37.0 mm × 0.76 mm), no wear leveling controller, up to 128 MB. This particular example shows the write protect sticker (the silver disc).
Manufacturers may report best-case speeds and may report the card's fastest read speed, which is typically faster than the write speed. Some vendors, including Transcend and Kingston, report their cards' write speed. [114] When a card lists both a speed class and an "×" rating, the latter may be assumed a read speed only. [citation needed]
For Blu-ray discs, 1× speed is defined as 36 megabits per second (Mbit/s), which is equal to 4.5 megabytes per second (MB/s). [7] However, as the minimum required data transfer rate for Blu-ray movie discs is 54 Mbit/s, the minimum speed for a Blu-ray drive intended for commercial movie playback should be 2×. The fastest Blu-ray speed is 16×.
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]
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Standard SD UFS Card CFast XQD CFexpress; Version 3.0 4.0 6.0 7.0 [28]: 8.0 1.0 2.0 1.0 2.0 1.0 2.0 1.0 2.0 4.0 Launched 2010 Q2 2011 Q1 2017 Q1 2018 Q2 2020 Q1
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related to: sandisk ultra write speed tool freecdw.com has been visited by 1M+ users in the past month