RK3588-Based 3.5-inch SBC Offers 8K Video, PCIe 3.0, and Multi-Display Support
Apr 7, 2026 — by Giorgio Mendoza 1,734 views
The AIO-3588Q is an ARM-based motherboard built around the Rockchip RK3588 SoC, aimed at edge computing, industrial control, and multi-display systems. The platform integrates high-resolution video interfaces, networking, and expansion options within a compact form factor.
The RK3588 features an octa-core CPU running up to 2.4 GHz, paired with a Mali-G610 MP4 GPU and a neural processing unit rated at up to 6 TOPS. The NPU supports INT4, INT8, and INT16 operations and is compatible with frameworks including TensorFlow, PyTorch, MXNet, and Caffe.
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Memory configurations range from 4GB to 32GB LPDDR4/LPDDR5, with eMMC storage options up to 128GB. Additional storage is available through an M.2 SATA interface and a MicroSD card slot.

R3588 block diagram
Along the top edge of the board, the I/O layout includes DC power input, VGA output, HDMI output, and an HDMI input port. Also along this edge are dual Ethernet ports, USB 3.1 Gen1 ports, audio jacks, and a USB-C interface that supports DisplayPort output.
On the right side, an M.2 slot is provided for 5G or 4G expansion. The central area is occupied by the RK3588 module and surrounding memory components, while a PCIe 3.0 x4 interface is located toward the left side for expansion.

AIO-3588Q peripherals
The platform supports up to 8K video decoding at 60 fps for H.265 and VP9, along with 8K encoding at 30 fps. Display output options include HDMI 2.1, DisplayPort 1.4 over USB-C, VGA, eDP, and dual MIPI-DSI, enabling multi-display configurations with up to six independent outputs.
Video input is handled through HDMI input and multiple MIPI-CSI interfaces, supporting multi-camera configurations and video stitching.

AIO-3588Q bottom view
Connectivity includes dual Gigabit Ethernet, Wi-Fi 6, and Bluetooth 5.0, with optional cellular expansion through the onboard M.2 slot.
The board supports Android and Linux operating systems, with support for containerization and virtualization technologies such as Docker and KVM. Multi-OS configurations are supported, allowing different operating systems to run across multiple displays.

AIO-3588Q top view
Specifications listed for the AIO-3588Q include:
- Processor:
- Rockchip RK3588 (up to 2.4GHz)
- GPU:
- ARM Mali-G610 MP4
- NPU:
- Up to 6 TOPS (INT8)
- Memory:
- LPDDR4 / LPDDR4x / LPDDR5 (up to 32GB)
- Storage:
- eMMC (up to 128GB optional)
- 1x M.2 SATA 3.0 (2242)
- 1x MicroSD card slot
- Expansion:
- 1x PCIe 3.0 x4
- Display Output:
- 1x HDMI 2.1 (up to 8K@60fps or 4K@120fps)
- 1x DisplayPort 1.4 via USB-C (up to 8K@30fps)
- 1x VGA (1080p@60Hz)
- 1x eDP 1.3 (up to 2K@60Hz)
- 2x MIPI-DSI (up to 4K@60fps)
- Video Input:
- 1x HDMI input (4K@60fps, HDCP 2.3)
- 1x MIPI CSI (configurable lanes)
- 1x BTB connector (additional CSI/DSI expansion)
- Networking:
- 2x Gigabit Ethernet
- Wi-Fi 6 (dual-band 2.4GHz / 5GHz)
- Bluetooth 5.0
- Optional 5G / 4G via M.2
- I/O Interfaces:
- 2x RS232, 1x RS485
- 1x CAN
- 1x Debug interface
- 20-pin header (GPIO, ADC, SPI, I2C, LED, reset, power)
- USB:
- 4x USB 3.1 Gen1
- 3x USB 2.0 (headers)
- 1x USB-C (OTG + DisplayPort)
- Power:
- 12V DC input (±5%)
- Mechanical:
- 146 × 102 × 37.5 mm
- Operating Temperature:
- -20°C to 60°C
Further Information
The AIO-3588Q starts at $429.00 for the 4GB RAM + 32GB storage configuration, with higher variants including 8GB RAM + 64GB storage at $469.00 and up to 32GB RAM + 256GB storage priced at $899.00, according to listings on the Firefly store.
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