Description
The quality of the SD card is a critical factor in the user experience of a Raspberry Pi single board computer. Newer cards support higher bus speeds and the command queuing feature, which enables a form of random read pipelining mechanism, closing the performance gap between SD cards and NVMe SSDs.
- Support for A2 SD cards
- Better performance due to higher bus speeds
- Random reads improved through command queues
The newer A2 standard SD cards offer significant performance improvements that are particularly beneficial for applications with high random read and write requirements. The official support and availability of these cards ensures that users achieve consistently high performance that meets the technological requirements of the Raspberry Pi.
Technical specifications- A2-class micro SD cards with support for DDR50 and SDR104 bus speeds and command queue (CQ) expansion
- 32 GB, 64 GB and 128 GB capacities
- random 4 KB read performance
- 3,200 IOPS (Raspberry Pi 4, DDR50)
- 5,000 IOPS (Raspberry Pi 5, SDR104)
- random 4 KB write performance
- 1,200 IOPS (Raspberry Pi 4, DDR50)
- 2,000 IOPS (Raspberry Pi 5, SDR104)
- Speed class: C10, U3, V30, A2
- SD specification: SD6.1
- Operating voltage: 2.7 - 3.6 V
- Operating temperature: -25 to +85 °C
- Storage temperature: -40 to +85 °C
- Dimensions (LxWxH): 15 × 11 × 1 mm
Conclusion: Switching to officially branded A2 SD cards ensures that Raspberry Pi users experience optimal and standardized performance.
