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Green rectangular single-board computer with 40-pin GPIO header, HDMI port, USB-C connector, Gigabit Ethernet jack

Khadas

Khadas VIM3L Amlogic S905D3 development board

SKU CH-7GPN-04QAE

Single-board computer with Amlogic S905D3, 1.2 TOPS NPU, dual 4K display support, Gigabit Ethernet and Bluetooth 5.0

  • 2 TOPS NPU accelerates TensorFlow and Caffe models
  • 12 nm Amlogic S905D3 runs cool under heavy workloads
  • 4K 60 fps plus 1080p 60 fps dual video decode for media centres
  • 40-pin GPIO with I2C, I2S, UART and ADC for maker projects
  • Bluetooth 5.0 and 2T2R AC Wi-Fi give reliable wireless links

IoT Edge Board with Neural Accelerator

The Khadas VIM3L is a single-board computer built around the Amlogic S905D3 processor on a 12 nm process. It targets makers and developers who need on-device inference and 4K media playback in a compact form factor. The board includes 16 MB of SPI flash and a programmable MCU for low-level control tasks. It is not suited for buyers who need more storage or a second neural accelerator.

Limits of the Gigabit and USB 3.0 Interfaces

Gigabit Ethernet with wake-on-LAN and USB 3.0 provide wired throughput for typical edge workloads. The NPU reaches 1.2 TOPS at 800 MHz with 1536 MAC units for INT8 inference and supports TensorFlow and Caffe frameworks. Dual independent displays can decode 4K at 60 fps plus 1080p at 60 fps simultaneously. Builders who need faster networking or additional high-speed lanes cannot meet those needs with this board.

Stackable Design and Connector Layout

A 40-pin GPIO header exposes USB, I2C, I2S, UART and ADC lines alongside an M.2 connector carrying eight-channel I2S for microphone arrays. MIPI-DSI and MIPI-CSI interfaces support cameras and displays, while USB-C PD handles higher power draw. Three programmable LEDs and an external power-button header simplify status indication and enclosure integration. The stackable layout and available 3D CAD files aid custom case design.

Besonderheiten

  • 2 TOPS NPU accelerates TensorFlow and Caffe models
  • 12 nm Amlogic S905D3 runs cool under heavy workloads
  • 4K 60 fps plus 1080p 60 fps dual video decode for media centres
  • 40-pin GPIO with I2C, I2S, UART and ADC for maker projects
  • Bluetooth 5.0 and 2T2R AC Wi-Fi give reliable wireless links

Technische Daten

Brandkhadas
ModelKhadas VIM3L

Fragen zu diesem Artikel

Which configuration of the VIM3L should I pick for my project?

The board is offered as a single configuration with the Amlogic S905D3 processor, LPDDR4 memory, 16MB SPI flash, and the listed wireless and wired interfaces.

What does the 1.2 TOPS NPU rating mean when I run models on the board?

The neural accelerator reaches 800MHz and delivers up to 1536 MAC operations per cycle for INT8 inference, with 512KB L2 cache and 1MB workspace buffer for TensorFlow and Caffe workloads.

What does the USB 3.0 port actually cap at in practice?

The USB 3.0 interface provides SuperSpeed data transfer for peripherals and works alongside the USB-C PD input that supports up to 24W for heavier loads.

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