There are a number of alternatives to the Raspberry Pi out there, but the  Khadas VIM4 sets itself apart in a crowded field  with its considerable muscle.

The VIM4 packs an Amlogic A311D2 octa-core processor, 8GB of LPDDR4X RAM, its Wi-Fi 6 connectivity, the 4K/60 HDMI input and output, plus independent USB 3.0 and PCIe (via M.2 socket) interfaces. This successor to the Khadas VIM3 will launch in 2022 on May 10 , and has just started to go around the review circuit. Sadly we will have to wait for launch day for pricing.

Key Features:

• Amlogic A311D2 - 2.2GHz Quad core ARM Cortex-A73 and 2.0GHz Quad core Cortex-A53
• ARM Mali-G52 MP8(8EE) GPU up to 800MHz
• AP6275S Wi-Fi 6 Module (802.11a/b/g/n/ac/ax, 2T2R MIMO with RSDB)
• Bluetooth 5.1
• USB 3.0 Available
• Gigabit Ethernet with WOL support
• 8GB 64bit LPDDR4X frequency up to 2016MHz
• USB-C PD for heavy applications
• M.2 Connector (for NVMe SSD, 5G etc)

OOWOW Embedded System:

• Install / reinstall OS
• Download online OS images
• Remote access control via HTTP/SSH
• Backup and restore system
• Display full device information
• Configure device
• Online script collection
• Rescue shell
• Developer and advanced features

Maker Friendly:

• Stackable Design
• Programmable 32bit MCU
• 2 Programmable LEDs (Red and White)
• XPWR for external Power button
• Onboard SPI Flash
• Khadas TST
• Khadas KBI
• 3D CAD Files

Business Applications:

• Triple independent displays with GSensor
• Touch panel support (TP)
• Dual MIPI-CSI inputs, for dual camera support
• HDMI input, for HDMI passthrough and recording
• V-by-One interface for machine vision applications
• H.264 / H.265 Encoding
• Supports multi-video decoding up to 4Kx2K@60fps+1x1080P@60fps
• 9-20V VIN Power Input

Rich IO:

• 40 Pin GPIO Header (USB, I2C, I2S, UART, ADC etc)
• 8-ch I2S for Microphone Array application (over M.2 Connector)
• MIPI-DSI
• MIPI-CSI
• eDP
• VBO

Compatibility:

• New VIM Heatsink
• Passive Heatsink
• 3705 Cooling Fan
• 4G LTE Module
• 5G LTE Module (coming soon)
• M2X WWAN Extension Board (coming soon)
• TS050 Touchscreen 
• Khadas Tone Board
• DIY Case 2  (coming soon)
• USB-C 30W Adapter (White)
• USB-C 24W Adapter (White)
• USB-C Cable (White, Male to male)
• HDMI Cable (19-Pin)

Note: current TS050 Touchscreen Kit includes an additional FPC cable for VIM4. The original FPC cable is not compatible with VIM4; current DIY Case is not compatible with VIM4 due to the HDMI IN interface. We are working on DIY Case 2 for VIM4.

Incompatible Accessories: 

• DIY Case (HDMI IN won't work with this case)
• IR Remote (VIM4 doesn't have IR Receiver)
• M2X Extension (PoE can only supply power. No Ethernet Data Transfer on VIM4)

Specifications:

• SoC: Amlogic A311D2 octa-core processor with 4x Arm Cortex-A73 cores @ up to 2.2 GHz and 4x Cortex A53 cores @ up to 2.0 GHz, Arm Mali-G52 MP(8EE) GPU, NPU shown as TBD possibly due to license requirements
• System Memory: 8GB LPDDR4X @ 2112 MHz
• Storage: 32GB eMMC flash, 32MB SPI flash, microSD card slot
• MCU: STMicro STM32G031 Cortex-M0+ microcontroller @ 64 MHz for power management, customizations, and boot media configuration
• Video Outputs:
• HDMI 2.1 up to 4Kp60
• 30-pin 0.5mm Pitch FPC Connector for 4-lane MIPI-DSI interface up to 1920 x 1080
• eDP interface
• LVDS and V-by-One interfaces
• Video Input:
• 1x Micro HDMI port up to 4Kp60
• Video:
• Decoding:
• 8Kp24 AV1, H.265, VP9
• Supports multi-video decoding up to 4Kx2K@60fps + 1x1080P@60fps
• Dolby Vision and HDR10, HDR10+, HLG, and PRIME HDR video processing
• Encoding:
• 4Kp50 H.265 / H.264 60fps decoder
• Audio:
• 8-ch I2S for microphone array applications over M2. connector
• Camera:
• FPC connector for 2x 4-lane MIPI CSI with dual camera support; 16MP ISP
• Connectivity:
• Gigabit Ethernet with WoL support
• Dual-band 802.11a/b/g/n/ac/ax WiFI 6, 2X2 MIMO and Bluetooth 5.2 via Ampak 6275S module
• USB:
• 1x USB 3.0 Type-A port, 1x USB 2.0 type-A port, 1x USB 2.0 OTG type-C port
• Sensor:
• KXTJ3-1057 3-axis digital accelerometer
• Expansion:
• M.2 Socket with single-lane PCIe 2.0, USB 2.0, I2S, I2C, ADC, 100M Ethernet PHY interface, GPIO, MCU_PA2
• 40-pins 2.54mm pitch header exposing:
• CPU signals: USB, I2C, I2S, SPDIF, UART, PWM, ADC
• MCU signals: SWIM, NRST, PA1
• Misc:
• 2x IR receivers; RTC & battery header; 4-pin cooling fan header with PWM speed control; 3x user LEDs; power, func and reset buttons; XPWR pads for an external power button
• Power Supply:
• 5V to 20V via USB-C port or pogo pads
• Dimensions:
• 82.0 x 58.0 x 13 mm (4x M2 mounting holes)

Package Includes:

• 1 x VIM4
• 2 x Antenna 
• 1 x New VIM Heatsink (Bareboard version excluded)
• 1 x 3705 Cooling Fan (Bareboard version excluded)
• 1 x User Manual
• 1 x Quickstart Guide

Note :  USB-C adapter and cable sold separately.