DFI QRB551 Octa-Core Qualcomm QRB5165 3.5″ Single Board Computer with 8GB LPDDR5 Memory and 128GB UFS

Robots and automated inspection cells need to see, decide and act on one board, close to the cameras and actuators. The QRB551 is DFI’s 3.5″ single board computer for that work, built around the Qualcomm QRB5165 robotics SoC and rated from 0 to 60 °C for indoor automation. It measures 146 x 102 mm, the standard 3.5″ footprint.

The QRB5165 has eight Kryo 585 cores at up to 2.84 GHz and an AI engine rated at 15 TOPS, so detection and tracking models can run on the board rather than on a separate accelerator. Memory is 8 GB of LPDDR5 in a package-on-package layout, storage is 128 GB of UFS 3.1 with a microSD 3.0 slot, and the Adreno 650 GPU drives one HDMI 1.4 output at 1080p under Linux. Ubuntu 20.04 is the supported operating system.

Two four-lane MIPI CSI-2 connectors take cameras directly, with DFI reference designs for OV9282 and IMX577 sensors. For control, a CAN 2.0B port connects motor drives and battery systems, an RS-232/422/485 port sits on a DB9 connector, and 8-bit DIO is on a rear terminal block. Networking is one GbE port on an ASIX AX88179A controller, with an M.2 B-key 3052/2242 socket and nano SIM slot for 4G or 5G and an M.2 E-key 2230 socket for Wi-Fi and Bluetooth. Two USB 3.1 Gen 1 Type-A ports connect peripherals or USB cameras.

The QRB551 runs from 12 V DC on a DC jack and has a 12 V PWM fan header for an active cooler where the enclosure needs one. It operates from 0 to 60 °C and carries CE, FCC, UKCA and RoHS compliance, which suits indoor robots, inspection cells and climate-controlled cabinets.