# Khadas VIM4 > Amlogic A311D2 SBC with 8GB LPDDR4X, WiFi 6, HDMI 2.1 output + input, 3.2 TOPS NPU, and a 40-pin GPIO header — Khadas's flagship single-board computer for AI, media, and smart home applications. ## Quick Facts - **Brand:** Khadas - **Price:** ~$219.9 - **CPU:** ARM Cortex-A73 ×4 @ 2.2GHz + Cortex-A53 ×4 @ 2.0GHz - **CPU Architecture:** ARM big.LITTLE (Cortex-A73 + A53) - **CPU Cores:** 8 - **RAM:** 8GB LPDDR4X @ 2016MHz - **Flash:** 32GB eMMC 5.1 + 32MB SPI Flash - **USB:** 1× USB 3.0 Type-A, 1× USB 2.0 Type-A, 1× USB 2.0 OTG Type-C - **Power:** 5–20V via USB-C - **Operating Voltage:** 3.3V GPIO - **Operating Temp:** 0°C to 70°C - **Dimensions:** 82 × 58 × 11.5mm - **Weight:** 31g - **Antenna:** Built-in PCB antenna (WiFi 6 + BT 5.1) - **SD Card:** microSD ## Connectivity - **Ethernet:** Gigabit Ethernet (10/100/1000M) - **Wifi:** 802.11 a/b/g/n/ac/ax (WiFi 6), 2×2 MIMO (AP6275S) - **Bluetooth:** Bluetooth 5.1 (AP6275S) ## Use Cases - edge-ai - media-player - home-server - voice-assistant - smart-home - arm-sbc-development - iot-gateway - computer-vision ## Components - **Amlogic-A311D2** (soc): Amlogic A311D2: 4× Cortex-A73 @ 2.2GHz + 4× Cortex-A53 @ 2.0GHz, Mali-G52 MP8 GPU, 3.2 TOPS NPU, 4K H.265/H.264 decode/encode. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.amlogic.com%2F%23Products%2F393%2Findex.html&ref=openhardware.directory&product=khadas-vim4&source=md-export) - **AP6275S** (module): AMPAK AP6275S dual-band WiFi 6 (802.11ax) + Bluetooth 5.1 module with 2×2 MIMO and built-in PCB antenna. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.ampak.com.tw%2Fupload%2FAP6275S_DS_Rev.1.0_20210903.pdf&ref=openhardware.directory&product=khadas-vim4&source=md-export) - **Mali-G52 MP8** (gpu): ARM Mali-G52 MP8 (8EE) GPU up to 800MHz, supporting OpenGL ES 3.2, Vulkan 1.1, and OpenCL 2.0. — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdeveloper.arm.com%2FProcessors%2FMali-G52&ref=openhardware.directory&product=khadas-vim4&source=md-export) ## GPIO Map | Pin | Name | Type | Functions | |-----|------|------|-----------| | Pin 3 | I2C_SDA | I2C | digital-input, digital-output, i2c | | Pin 5 | I2C_SCL | I2C | digital-input, digital-output, i2c | | Pin 7 | GPIO | GPIO | digital-input, digital-output | | Pin 8 | UART_TX | UART | digital-output, uart | | Pin 10 | UART_RX | UART | digital-input, uart | | Pin 11 | GPIO | GPIO | digital-input, digital-output | | Pin 12 | I2S_CLK | I2S | digital-output, i2s | | Pin 13 | GPIO | GPIO | digital-input, digital-output | | Pin 15 | GPIO | GPIO | digital-input, digital-output | | Pin 16 | GPIO | GPIO | digital-input, digital-output | | Pin 18 | GPIO | GPIO | digital-input, digital-output | | Pin 19 | SPI_MOSI | SPI | digital-output, spi | | Pin 21 | SPI_MISO | SPI | digital-input, spi | | Pin 22 | GPIO | GPIO | digital-input, digital-output | | Pin 23 | SPI_CLK | SPI | digital-output, spi | | Pin 24 | SPI_CSn | SPI | digital-output, spi | | Pin 27 | I2C_SDA (alt) | I2C | digital-input, digital-output, i2c | | Pin 28 | I2C_SCL (alt) | I2C | digital-input, digital-output, i2c | | Pin 29 | GPIO | GPIO | digital-input, digital-output | | Pin 31 | GPIO | GPIO | digital-input, digital-output | | Pin 32 | PWM | PWM | digital-output, pwm | | Pin 33 | PWM | PWM | digital-output, pwm | | Pin 35 | I2S_SDI | I2S | digital-input, i2s | | Pin 36 | GPIO | GPIO | digital-input, digital-output | | Pin 37 | GPIO | GPIO | digital-input, digital-output | | Pin 38 | I2S_SDO | I2S | digital-output, i2s | | Pin 40 | I2S_SYNC | I2S | digital-output, i2s | ## Description ## Overview The Khadas VIM4 is built around Amlogic's A311D2 SoC — an octa-core processor pairing four Cortex-A73 cores at 2.2GHz with four Cortex-A53 cores at 2.0GHz, backed by a Mali-G52 MP8 GPU and a built-in 3.2 TOPS NPU for on-device AI inference. Khadas ships it in a fixed 8GB LPDDR4X / 32GB eMMC configuration, keeping the BOM predictable. The board distinguishes itself from competing RK3588 designs with its Amlogic-based media processing heritage: hardware-accelerated video decode up to 4K, native HDMI 2.1 output for 4K@60Hz playback, and an HDMI input for video capture — a rare feature on compact SBCs at this price point. Both are active simultaneously. Wireless connectivity is robust: the AP6275S module provides WiFi 6 (802.11ax 2×2 MIMO) and Bluetooth 5.1 without any external antenna socket needed, using an onboard PCB antenna. A standard Gigabit Ethernet port rounds out wired networking. The 40-pin GPIO header exposes I2C, SPI, UART, I2S, and general GPIO lines, and the M.2 slot (PCIe 2.0) accepts NVMe SSDs. Armbian, Ubuntu, Debian, Android, and the Khadas vendor OS are all available with active image support, making the VIM4 a solid choice for media center builds, smart home hubs, voice assistant platforms, and edge AI prototyping. ## Where to Buy - [Khadas](https://openhardware.directory/r?to=https%3A%2F%2Fwww.khadas.com%2Fvim4&ref=openhardware.directory&product=khadas-vim4&source=md-export) — 219.90 ## Resources - [product](https://openhardware.directory/r?to=https%3A%2F%2Fwww.khadas.com%2Fvim4&ref=openhardware.directory&product=khadas-vim4&source=md-export) - [wiki](https://openhardware.directory/r?to=https%3A%2F%2Fdocs.khadas.com%2Fproducts%2Fsbc%2Fvim4%2Fstart&ref=openhardware.directory&product=khadas-vim4&source=md-export) - [datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fdl.khadas.com%2Fproducts%2Fvim4%2Fspecs%2Fvim4-specs.pdf&ref=openhardware.directory&product=khadas-vim4&source=md-export) - [github](https://openhardware.directory/r?to=https%3A%2F%2Fgithub.com%2Fkhadas&ref=openhardware.directory&product=khadas-vim4&source=md-export) ## Tags `amlogic`, `a311d2`, `linux`, `arm`, `sbc`, `wifi6`, `npu`, `khadas`, `media`, `ai` ## Images ![Khadas VIM4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/khadas-vim4/a7a27d6075bc.jpg) ![Khadas VIM4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/khadas-vim4/0835af94034a.jpg) ![Khadas VIM4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/khadas-vim4/984daf0b7502.webp) ![Khadas VIM4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/khadas-vim4/a74e9cfe7102.jpg) ![Khadas VIM4](https://nbg1.your-objectstorage.com/openhardware-directory/entities/khadas-vim4/c7dc79592982.jpg) --- [View full device page](https://openhardware.directory/devices/khadas-vim4)