USBridge-KVM 2.0 (LOW Edition)

USBridge-KVM 2.0 LOW is a minimalist, bare-bone DIY kit designed for custom rack builds, embedded setups, and high-density deployments. It delivers the complete Layer-0 infrastructure management software stack on raw, unhoused hardware equipped with a pre-installed copper heatsink for passive cooling.

The core platform provides system administrators with absolute hardware control while completely bypassing the target OS to ensure strict physical isolation. Enjoy out-of-band server access with ultra-low-latency video streaming, automated script execution, and native AI agent integration at a minimal entry price.

⚠️ Setup Note: KVM OS is 100% free and included as a lifetime license (we send a direct download link to your email). You will need your own MicroSD card to flash and run the system.

Need ATX Power Control, Display, or Enclosure? ATX power boards, OLED screens, cases, and pre-flashed MicroSD cards can be added separately as add-ons or found in our Standard and Full editions.

What's In the Box

• Radxa Zero 3W (1 GB RAM, no eMMC)
• Pre-installed Copper Heatsink (for silent, passive thermal management)
• HDMI-to-USB 1080p Capture Dongle
• USB-C & USB Data Cables Set
• Full KVM OS License (Lifetime, 100% Free & Open Source)

BIOS-in-Terminal: Offline OCR & Hardware-Level AI Automation

The BIOS-in-Terminal engine intercepts the raw HDMI signal at the hardware level. Using an on-board processing chip and local text recognition (OCR) algorithms, the device converts the graphical BIOS and pre-boot environment into an interactive text stream delivered directly to your terminal via SSH—completely offline, with no cloud dependencies.

• Interactive Text BIOS over SSH: Transforms the graphical pre-boot screen into a real-time text stream. You can connect to the KVM via a standard SSH session and configure the BIOS directly within your native terminal. Because the output is pure text, you can easily highlight and copy error codes or serial numbers, even over high-latency or unstable network connections.
• AI Agent Integration via MCP Protocol: Converting the UI into structured text enables autonomous machine management via large language models. Through the Model Context Protocol (MCP), you can attach AI agents (such as Claude) directly to the KVM. The AI can read the terminal screen, navigate through BIOS menus, and perform autonomous hardware diagnostics.
• Pixel-Independent Automation Scripts: An automation engine is built directly into the client app, allowing you to write and run reliable Python (Starlark) scripts. Instead of relying on fragile pixel-matching algorithms, the system evaluates the recognized text stream—enabling scripts to wait for specific error strings or menu headers before sending keystrokes.

Low-Latency Streaming via Sunshine / Moonlight Integration

Forget about sluggish, "jelly-like" cursor movement, choppy frame rates, and input lag. USBridge-KVM 2.0 features native, embedded integration with the Moonlight streaming protocol.

The entire video capture and encoding pipeline is optimized at the hardware level to push latency down to an imperceptible minimum. You get an immediate, direct-connection feel with smooth mouse tracking and instant keystroke execution:

• 720p Resolution: Ultra-low latency of 25–50 ms.
• 1080p Resolution: Stable, low latency of 50–75 ms.
• Zero-Config Mesh VPN: These benchmarks are achieved even when routing traffic remotely over secure Tailscale networks.

Drive Emulation & Immutable Snapshots (Storage & Security)

Virtual Media: Complete Replacement for Bootable USB Drives

No more physically plugging USB drives into rack servers or setting up complex PXE boot infrastructure. Hardware-level drive emulation allows you to mount virtual disk images directly from your local computer—whether it is a clean installation ISO or a fully configured operating system image in VDI or VMDK formats.

The target server instantly recognizes the mounted image as a standard physical hard drive and boots from it without requiring file conversions or lengthy flashing processes. High-speed LPDDR4X caching offsets network delays during data transfer, while a dedicated Read-Write Overlay mode redirects all new session writes to a separate layer, keeping your master image completely untouched.

Hardware Ransomware Protection & Btrfs Snapshots

The core design of the immutable snapshot engine ensures that your user data and system states cannot be encrypted, overwritten, or deleted externally. When changes occur, the system never overwrites the original data files—it only records the delta (change differential) and instantly freezes the new data state as read-only.

Thanks to strict hardware isolation, even if malware or an attacker gains full root privileges on the remote target server, they physically cannot overwrite or delete the backups and snapshots stored on the KVM. Built on the open Btrfs filesystem, there is zero vendor lock-in.

Unified Ecosystem: USBridge-Remote

Infrastructure management shouldn’t feel like juggling a dozen disconnected utilities. To solve this, I created USBridge-Remote—a 100% Open Source, cross-platform application (Windows, macOS, Linux, Android, iOS) that unifies your entire network and KVM management under a single interface.

Technical Specifications & Features

Hardware Specifications

• Single Board Computer (SoC): Radxa Zero 3W (Rockchip RK3566, quad-core ARM Cortex-A55).
• System Memory (RAM): 1 GB LPDDR4X (dedicated allocation for high-speed virtual media caching).
• Thermal Management: Pre-installed copper heatsink for high-efficiency passive cooling.
• Form Factor: Bare-bone PCB layout ideal for custom 1U/2U server rack trays, custom 3D-printed mounts, or embedded clusters.

Interfaces & Connectivity

• Video Capture: Hardware UVC video capture supporting up to 1080p @ 60 FPS ultra-low latency streaming via a compact USB dongle natively integrated with the Moonlight protocol.
• Dual USB Type-C Ports:
  • Port 1 (OTG): Multi-function interface supporting keyboard/mouse emulation, virtual mass storage (ISO/disk image mounting), and main power input.
  • Port 2 (Host): Dedicated host port for connecting video capture devices, USB hubs, or external peripherals.
• Wireless Networking: Built-in Wi-Fi 6 & Bluetooth module.
• Storage & Snapshots: MicroSD slot dedicated to host OS storage and immutable Btrfs snapshot management.

Software & Management Ecosystem

• Native Clients: Cross-platform USBridge-Remote applications available for Windows, macOS, Linux, Android, and iOS.
• Network & Security: Embedded Tailscale integration for seamless, secure NAT traversal with minimal overhead.
• Automation & AI: On-board offline BIOS text recognition (OCR), built-in Starlark (Python-syntax) script engine, and native Model Context Protocol (MCP) integration for autonomous AI agents.
• Over-The-Air (OTA) Updates: Automated, seamless firmware update engine delivering continuous security patches and feature releases.

Comparison

Support, Documentation & Open Source

I believe in open hardware and accessible software. USBridge-Remote is fully open source.

Repositories & Resources

• Client Application (Open Source): USBridge-Remote GitHub Repository — Source code for cross-platform desktop and mobile clients.
• Hardware & Design Files: USBridge Hardware Repository — Schematic diagrams, PCB design files, and 3D-printable enclosure models.

Orders are shipped within 1–2 business days from Spain via tracked postal/courier service. Delivery times: Europe 3–7 days, Worldwide 7–14 days.