Ultra‑compact SAMA5 SBC
Conclusive Engineering launched the KSTR‑SAMA5D27, an ultra‑compact single‑board computer sized at about 70 × 50 mm built around Microchip’s SAMA5D57 SiP. (cnx-software.com). It’s aimed at low‑power embedded and edge projects that need smaller footprints than typical SBCs. (cnx-software.com)
A single-board computer is a full Linux-capable computer on one small circuit board, and Conclusive Engineering’s new KSTR-SAMA5D27 shrinks that idea to about 70 by 50 millimeters. (cnx-software.com) CNX Software reported the board on April 16, 2026, saying it uses Microchip’s SAMA5D27 system-in-package, which combines a 500 MHz Arm Cortex-A5 processor with 256 MB of LPDDR2 memory in one package. (cnx-software.com) That system-in-package approach matters because it folds the processor and RAM into one part, cutting the board area and routing work that usually make embedded Linux designs larger. Microchip uses the same idea in its SAMA5D27 SOM1 module, which pairs the SAMA5D27 with onboard memory and support chips for compact designs. (microchip.com, ww1.microchip.com) Microchip positions the SAMA5D2 family as a low-power embedded microprocessor line rather than a desktop-class chip. The parts run up to 500 MHz and support DDR, QSPI flash, eMMC, 10/100 Ethernet, USB, CAN bus, display output, and security features such as Arm TrustZone and secure boot. (ww1.microchip.com, microchip.com) That puts the KSTR-SAMA5D27 in a different category from hobbyist boards built around faster application processors. It fits projects such as gateways, industrial controllers, human-machine interfaces, and other edge devices where physical space, power draw, and long-term component availability often matter more than raw speed. (microchip.com, (cnx-software.com)) Conclusive Engineering has been marketing custom single-board computer development around exact I/O, form factor, and performance targets, and this board lines up with that pitch. A ready-made compact design can let device makers skip a full custom board spin while still staying inside a much smaller footprint than typical evaluation kits. (conclusive.tech, microchip.com) Microchip’s own SAMA5D27 evaluation kit is a prototyping platform with a soldered module and a larger baseboard, and Microchip lists that kit at $290.94. The new board is aimed less at lab evaluation and more at products that need Linux on a board small enough to disappear inside the enclosure. (microchip.com, cnx-software.com) The result is a board that trades headline performance for integration. In embedded hardware, that is often the whole point: put just enough processor, memory, and I/O into the smallest board that can run the job. (ww1.microchip.com, cnx-software.com)
