{"product_id":"mmc-hat-for-raspberry-pi-discontinued","title":"MMC HAT for Raspberry Pi [Discontinued]","description":"\u003cp align=\"left\"\u003eThe MMC HAT adds a second micro SD socket to your Raspberry Pi using the second SDIO interface.\u003c\/p\u003e\n\u003cp\u003eThe MMC HAT has many uses including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMicro SD card reader. Write new images, repair or modify existing Raspberry Pi installations with ease\u003c\/li\u003e\n\u003cli\u003eAdditional storage, mount as your home directory, for general storage or backups\u003c\/li\u003e\n\u003cli\u003eRAID1 on the root (\/) partition for added reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-mce-fragment=\"1\"\u003eConnector for\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eUSB Serial Adaptor (FTDI 3.3v)\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOS: Only compatible with Raspberry Pi OS.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCan be used on Raspberry Pi A+, B+, Zero (with headers), Zero W* (with headers) , 2B, 3B*, 3B+* and 4B**\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e* When used on a Raspberry Pi Zero W, 3B or 3B+ the \u003cstrong\u003eon-board WiFi is disabled\u003c\/strong\u003e as it is on the SDIO interface used by the MMC HAT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e**The\u003cspan\u003e \u003c\/span\u003eRaspberry Pi 4\u003cspan\u003e \u003c\/span\u003ehas three SD controllers so you can use onboard SD, WiFi and the MMC HAT (SD)\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eat the same time\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e**The SD clock speed will be slower on a Pi4 when compared to the Pi4's onboard SD controller. Earlier boards (3B+ and before) will benefit from faster speed from the MMC HAT.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen using a Raspberry Pi 4 please add the following three lines to the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTOP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof the config.txt file in the boot directory.\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003e[pi4]\u003c\/code\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003edtparam=mmchat_pi4\u003c\/code\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003e[all]\u003c\/code\u003e\u003c\/p\u003e\n\u003ch2\u003eSpeed\u003c\/h2\u003e\n\u003cp\u003eWith the standard SD clock speed a micro SD card in the MMC HAT (\/dev\/mmcblk2) performs at similar speeds to the onboard micro SD card (\/dev\/mmcblk0) on boards up to the 3B+.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe clock speed will be slower on a Pi4\u003c\/strong\u003e when compared to the Pi4's onboard SD controller, as the Pi4 moved to emmc2 which improves on the original sdhost and arasan interfaces. Still, the MMC HAT is great for the Pi4 as a card reader, spare storage and the other features of this board.\u003c\/p\u003e\n\u003ch2\u003e\n\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe standard MMC HAT package contains:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x MMC HAT PCB with pre-soldered header\u003c\/li\u003e\n\u003cli\u003e4x 12mm M2.5 standoff\u003c\/li\u003e\n\u003cli\u003e8x 6mm M2.5 screw\u003c\/li\u003e\n\u003cli\u003e4x stick on feet\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"8086","offers":[{"title":"Default Title","offer_id":51616986333490,"sku":"dbt1787257924786","price":9.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/0289\/8482\/files\/mmc-hat-for-raspberry-pi-discontinued_1.jpg?v=1787257929","url":"https:\/\/www.mapleborough.shop\/products\/mmc-hat-for-raspberry-pi-discontinued","provider":"My Store","version":"1.0","type":"link"}