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Disk buffer - Wikipedia
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What is Hard Disk Buffer Size and Does it Matter?
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What is Hard Drive and SSD Cache, and What Does It Do?
What Is Hard Disk Cache and Why Is It Important - Dignited
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Toshiba 4tb S300 3.5" Internal Hard Disk Drive Surveillancei Internal Mechanical Hdd 5400rpm 128m Buffer Hdd For Video Recorder - Portable Hard Drives - AliExpress