Raspberry Pi has another surprise announcement just a week after releasing the Raspberry Pi AI Camera Kit but this time we get two new products at onc

Raspberry Pi release faster, branded class A2 micro SD cards and 'bumper' case for Raspberry Pi 5

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2024-10-07 12:00:07

Raspberry Pi has another surprise announcement just a week after releasing the Raspberry Pi AI Camera Kit but this time we get two new products at once! Raspberry Pi has announced its "own range of high-quality, low-cost Raspberry Pi SD Cards" and a Raspberry Pi Bumper, a silicone bumper base for the Raspberry Pi 5.

The Raspberry Pi branded cards are made by Longsys, and were tested by running over 100,000 "surprise power cycles" while under a heavy I/O load. These faster cards offer exceptional random read and write throughput when compared to other third-party cards. Putting the Raspberry Pi brand on a range of Class A2 cards provides customers with assurances as to their quality and suitability. When used with the Raspberry Pi 5, these 32GB ($10), 64GB ($15), and 128GB ($20?) micro SD cards use SDR104 bus speeds to offer the best performance, but they will also work with older models of Raspberry Pi. The cards can come pre-loaded with the latest Raspberry Pi OS, or blank ready for flashing. Expect to pay a little extra for cards with a pre-loaded OS.

The Raspberry Pi 5 introduced support for Class A2 micro SD cards and Command Queueing (CQHCI Command Queueing Host Controller Interface). Previously, SDHCI (SD Host Controller Interface) provided a standardized interface specification for communication with SD cards. The SDHCI resides inside the Broadcom application processor. CQHCI takes over from the SDHCI when a suitable card is detected, such as the new Raspberry Pi branded cards. The new interface has new commands, which the controller will queue, order, and run. This means that some of the responses can be buffered, before being written to flash. What does this all mean? Raspberry Pi says "By allowing it to effectively “see into the future”, command queueing lets the flash controller hide more of the latency associated with accessing disparate NAND flash pages. This results — at least in theory — in better throughput for random I/O workloads of the sort generated by Raspberry Pi OS."

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