Add docs for Raspberry Pi SD cards and bumper accessories release

Author: nathan-contino

documentation/asciidoc/accessories/bumper.adoc

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+include::bumper/about.adoc[]

documentation/asciidoc/accessories/bumper/about.adoc

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+== About
+
+.The Raspberry Pi Bumper for Raspberry Pi 5
+image::images/bumper.jpg[width="80%"]
+
+The Raspberry Pi Bumper for Raspberry Pi 5 is a snap-on silicone cover that protects
+the bottom and edges of the board. When attached, the mounting holes of the Raspberry Pi remain accessible through the bumper.
+
+The Bumper is only compatible with Raspberry Pi 5.
+
+== Assembly instructions
+
+.Assembling the bumper
+image::images/assembly.png[width="80%"]
+
+To attach the Raspberry Pi Bumper to your Raspberry Pi:
+
+. Turn off your Raspberry Pi and disconnect the power cable.
+. Remove the SD card from the SD card slot of your Raspberry Pi.
+. Align the bumper with the board.
+. Press the board gently but firmly into the bumper, taking care to avoid contact between the bumper and any of the board’s components.
+. Insert your SD card back into the SD card slot of your Raspberry Pi.
+. Reconnect your Raspberry Pi to power.
+
+To remove the Raspberry Pi Bumper from your Raspberry Pi:
+
+. Turn off your Raspberry Pi and disconnect the power cable.
+. Remove the SD card from the SD card slot of your Raspberry Pi.
+. Gently but firmly peel the bumper away from the board, taking care to avoid contact between the bumper and any of the board’s components.
+. Insert your SD card back into the SD card slot of your Raspberry Pi.
+. Reconnect your Raspberry Pi to power.

documentation/asciidoc/accessories/bumper/images/assembly.png

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+include::sd-cards/about.adoc[]

documentation/asciidoc/accessories/bumper/images/bumper.jpg

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+== About
+
+.A 64GB Raspberry Pi SD Card
+image::images/sd-cards.jpg[width="80%"]
+
+SD card quality is a critical factor in determining the overall user experience for a Raspberry Pi computer. Slow bus speeds and lack of command queueing can reduce the performance of even the most powerful Raspberry Pi models.
+
+Raspberry Pi's official microSD cards support DDR50 and SDR104 bus speeds. Additionally, Raspberry Pi SD cards support the command queueing (CQ) extension, which permits some pipelining of random read operations, ensuring optimal performance.
+
+You can even buy Raspberry Pi SD cards pre-programmed with the latest version of Raspberry Pi OS.
+
+Raspberry Pi SD cards are available in the following sizes:
+
+* 32GB
+* 64GB
+* 128GB
+
+== Specifications
+
+Raspberry Pi SD cards have the following specifications:
+
+Speed Class: C10, U3, V30, A2
+
+Random 4KB read performance:
+
+* 3,200 IOPS on Raspberry Pi 4 (DDR50)
+* 5,000 IOPS on Raspberry Pi 5 (SDR104)
+
+Random 4K write performance:
+
+* 1,200 IOPS on Raspberry Pi 4 (DDR50)
+* 2,000 IOPS on Raspberry Pi 5 (SDR104)
+
+Form factor/compatibility: microSDHC / microSDXC
+
+SD specification: SD6.1

documentation/asciidoc/accessories/sd-cards.adoc

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 We recommend using an SD card with at least 32GB of storage for Raspberry Pi OS installations. For Raspberry Pi OS Lite, we recommend at least 16GB. You can use any SD card with a capacity of less than 2TB. Capacities above 2TB are currently not supported due to limitations in the https://en.wikipedia.org/wiki/Master_boot_record[MBR]. As with any other boot media, you'll see improved performance on SD cards with faster read and write speeds.
 
+If you're unsure which SD card to buy, consider xref:../accessories/sd-cards.adoc[Raspberry Pi's official SD cards].
+
 Because of a hardware limitation, the following devices will only boot from a boot partition of 256GB or less:
 
 * Raspberry Pi Zero