# Hardware overview
The Qualcomm RB3 Gen 2 Development Kit is available as a Core kit and a Vision kit. Both kits feature a system-on-module (SoM) that integrates a Qualcomm system-on-chip (SoC).
The SoM is mounted to an interposer that is connected to the mainboard using a 500-pin connector.
The mainboard includes multiple connectors to support a variety of different peripheral interfaces and stackable mezzanine cards.
The Vision kit includes everything in the Core kit plus the Qualcomm Vision mezzanine board, a high-resolution main camera, and a low-resolution tracking camera.
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> **RB3 Gen 2 Development Kit — 360° walkthrough**
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> **RB3 Gen 2 Development Kit unboxing and setup**
Kit components
| Core kit | Vision kit |
| --- | --- |
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Qualcomm RB3 Gen 2 mainboard
Interposer with SoM
Power supply (12 V)
USB-A to USB-C cable
Two speakers
Pick tool to help access DIP switches
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Qualcomm RB3 Gen 2 Core kit
Qualcomm Vision mezzanine board
IMX577 camera
OV9282 tracking camera
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Note
The RB3 Gen 2 Vision kit includes cameras with protective lens covers. Remove these covers before using the kit.
**Mainboard and interposer block diagram**
The following block diagram shows the RB3 Gen 2 mainboard and interposer. Connectors are shown in dark blue. Some connectors are on the interposer board and some on the mainboard.
Knowing the placement of these connectors is useful in configuring and debugging them easily and effectively.
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> **Figure: Mainboard and interposer block diagram**
Hardware features in RB3 Gen 2 Dev Kit
| Feature | Component name | Interface | Details |
| --- | --- | --- | --- |
| DSI to HDMI bridge | Lontium LT9611UCX | HDMI Type-A connector | 4K at 30-Hz HDMI support with I2S audio |
| USB hub | Genesys GL3590 | 2x USB Type-A connectors | USB 3.1 Gen2 10 Gb 4-port hub controller |
| USB to LAN | ASIX AX88179 | RJ45 connector | USB 3.0 Gb to 1 Gb Ethernet controller |
| Audio amplifiers (2) | Qualcomm WSA8835 | Header pins (2) on interposer | Class-D SoundWire audio amplifier |
| CAN bus controller | Microchip MCP2518FD | Pins on LS1 connector | External CAN-FD controller with SPI |
| Sensor | TDK ICM-42688-P | Sensor on mainboard | 3-axis gyroscope and 3-axis accelerometer |
| On-board digital microphone | TDK T5818 | Microphone on mainboard | PDM digital MEMS microphone |
| USB host/Device port | USB Type-C | Type C connector | USB Type-C with display port (direct connect to processor) |
| Input power | DC power input | Barrel jack connector | +12-V from wall supply |
| microSD storage | microSD card | microSD card tray | microSD card tray |
| WLAN/Bluetooth antenna | Antenna0 | Printed antenna on mainboard | 2.4 GHz/5 GHz printed antenna |
| WLAN/Bluetooth antenna | Antenna1 | Printed antenna on mainboard | 2.4 GHz/5 GHz printed antenna |
| Debug UART | FTDI UART to USB converter | microUSB connector | Connector with FTDI USB to UART converter |
| DP display | DP display output | Micro DisplayPort connector (on interposer) | Display only, not including touch or backlight control |
| GNSS | SDR735G chipset | RF connector for external antenna on interposer | GNSS/GPS support |
| USB 2.0 | USB1 port from SoC | Micro USB connector on interposer | Additional USB port for host/ device mode |
| Second Ethernet port | From QPS615 PCIe expander | IX Ethernet connector on interposer | 2.5 GbE from PCIe |
| Third Ethernet port | From QPS615 PCIe expander | IX Ethernet connector on interposer | 10 GbE from PCIe (not installed by default, special order) |
| Camera port 1 | From chipset | 30-pin flex connector | Support for C/D-PHY camera |
| Camera port 2 | From chipset | 30-pin flex connector | Support for C/D-PHY camera |
Last Published: Feb 07, 2025
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