PiTray mini for Raspberry Pi Compute Module 4

The PiTray mini is a compact and efficient carrier board specifically designed for building clusters with the Raspberry Pi Compute Module 4 (CM4). It mirrors the shape and mounting points of the Raspberry Pi Model B, allowing seamless integration into existing setups. This design choice makes it an innovative solution for those who require more reliable and faster disk I/O, thanks to CM4's embedded eMMC storage options.

One of the key advantages of the CM4 models used with the PiTray mini is improved energy efficiency, important for large-scale or long-term projects. The CM4 variants without WiFi and Bluetooth reduce power consumption further by eliminating unnecessary hardware, optimizing computing resources in cluster environments.

The PiTray mini caters thoroughly to cluster builders by offering a minimalistic layout with robust module mounting, stable power supply, and Gigabit Ethernet connectivity. It serves prominently as an introductory kit for CM4, featuring an eMMC boot switch for straightforward OS image flashing in eMMC variants, removing the complexity of configuring pin connections.

For those using CM4 Lite versions, PiTray mini includes a microSD card socket, ensuring compatibility with these models. While it omits DSI, CSI sockets, audio jack, dual micro HDMI, and USB3.0 hub to maintain its compact size and focus on cluster building, it still accommodates basic connectivity needs through a single USB 2.0 and full-size HDMI port. These features provide a familiar experience resembling that of the Raspberry Pi Model B, meeting the functional demands of HTPC builders, RetroPie enthusiasts, and general Raspberry Pi users alike.