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Raspberry Pi Ltd

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SD card quality is a critical factor in determining the overall user experience for a Raspberry Pi single-board computer. Recent cards support higher bus spe...

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SD card quality is a critical factor in determining the overall user experience for a Raspberry Pi single-board computer. Recent cards support higher bus speeds, and the command queuing extension, which permits a degree of pipelining of random read operations; together these close some of the gap between SD card and NVMe SSD performance. This 64GB MicroSD card from Raspberry Pi is the preferred choice for those looking to run and boot an OS off of a MicroSD card with the Pi. It has been thoroughly tested, vetted, and selected by the Raspberry Pi foundation for use with the Raspberry Pi and Raspbian operating systems. Features: A2 class micro-SD cards with support for DDR50 and SDR104 bus speeds and command queueing (CQ) extension 64GB Capacity Random 4KB read performance 3,200 IOPS (Raspberry Pi 4, DDR50) 5,000 IOPS (Raspberry Pi 5, SDR104) Random 4K write performance 1,200 IOPS (Raspberry Pi 4, DDR50) 2,000 IOPS (Raspberry Pi 5, SDR104)

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Plain-language definitions for the technical terms used above.

microSD card
A microSD card is a small removable flash memory card used to store data such as audio, images, logs or program files. Its capacity and formatting (often FAT32 or exFAT) affect how much can be stored and whether the card needs preparing before use.
NVMe
A high-speed storage standard commonly used by modern SSDs. NVMe support matters if you want faster storage for large AI models, video files or operating system images than a typical microSD card can provide.
single-board computer
A complete computer built onto one circuit board, usually including the processor, memory, ports, and connectors. This matters because accessories like heatsinks must match the board’s layout and mounting holes to fit properly.

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