Get Ready: Affordable $12 M.2 Hardware Adapter Now Available for Your Raspberry Pi 5

Raspberry Pi hastoday released the $12 M.2 HAT+ for theRaspberry Pi 5 (yes, one is on the way for our review) with up to 500 MB/s data transfer, much faster than eventhe best micro SD cards can manage.

(Image credit: Raspberry Pi)

Designed to fit on top of theRaspberry Pi (unlike other third-party NVMe boards), the M.2 HAT+ is secured to the Raspberry Pi 5 using M2.5 standoffs and screws. The boards is connected to the PCIe connector for data and power, and the GPIO pins are accessible thanks to a 16mm stacking header. The standoffs also provide the necessary height to enable the Raspberry Pi Active Cooler andArgon’s THRML 30 cooler to be used at the same time.

The M.2 HAT+ uses the new HAT+ standard, developed for the Raspberry Pi 5. This is the first update of the HAT standard since it was introduced with the Raspberry Pi B+ back in 2014. TheHAT+ standard brings better power management options, a simpler EEPROM, and interestingly the possibility of stacking HAT+ boards on top of each other.

No software installation is required for M.2 HAT+, or any other M.2 NVMe drives. Raspberry Pi OS has baked-in support for these drives, but it would be prudent to update the firmware to ensure that you receive all of the latest features and updated drive compatibility.

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Raspberry Pi M.2 HAT+ Specifications

The Raspberry Pi 5 was launched back in September 2023 and went on sale in late October 2023. The Pi 5 introduced a dedicated PCIe interface to the traditional Raspberry Pi form factor — the Compute Module 4 carrier board had a PCIe slot long before the Pi 5. The PCie connection on the Pi 5 is where the display (DSI) connector used to be on previous models. The PCIe port uses an FFC (flexible flat cable) for a single-lane PCIe 2.0 bus. This16-pin FFC provides the data and power connection for drives connected to the M.2 HAT+. Two pins are spare, and provide a “power enable” for device power and board detect used to wake any attached drives.

We’ve tested other M.2 NVMe drive boards. The first on the scene was Pineboard’s (formerly Pineberry Pi)Hat Drive , next wasPimoroni’s NVMe Base . Both of these boards supported PCIe 2.0, and could be pushed to support PCIe 3.0 speeds — something we will test once our review unit arrives. The problem that we faced with these boards concerns compatibility. NVMe drive support on the Raspberry Pi 5 was patchy. Some drives worked, others did not. The extra time afforded to Raspberry Pi for its M.2 HAT+ release means that many of the issues have been addressed, again we will be testing this.

The official Raspberry Pi M.2 HAT+ goes on sale today for $12 via approved resellers.

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