Enterprise Security Edition Personal Portable Edition One Hardware · Two Perspectives
AI-U SHIELD · SECOND BRAIN · Portable AI Workspace

Your Portable
“Second Brain”

Your AI should remember you,
not remember in the cloud.

AI-U Shield · Your Portable Private AI Workspace.
Plug it in and go — AI memory and data stay in your own device.

Local StoragePrivate MemoryData AutonomyPlug and Play

“Second Brain” is a figurative description of a product function: it refers to an AI service whose data and long-term memory are stored locally and can be carried with the device. It does not constitute a medical or health commitment, and specific functions are subject to the official website announcement and product instructions.

Ordinary AI: You use it. AI-U Shield: It gradually gets to know you — and that “knowing” belongs to you.
WHY · Why You Need It

Don't make AI have to get to know you all over again

You talk to AI every day, yet you have to introduce yourself again every time — that is not an assistant, that is a support agent. Let AI carry everything about you with you, for the long term.

Work

Let AI truly understand your work

Documents, projects, work habits, and frequently used materials accumulate over time, so AI understands your business context instead of starting from zero every time.

  • Frequently used documents and project materials keep accumulating
  • Background information repeated over and over is greatly reduced
  • Key points from past exchanges can be recalled at any time, no longer lost

Study

Let AI remember your learning process

Knowledge, notes, materials, wrong answers, and study habits keep accumulating, so your progress stays continuous and you can review and ask questions whenever you like.

  • Materials and notes are saved as you study and searchable as you save them
  • Learning progress and key points stay coherent over the long term
  • AI gradually becomes familiar with how you learn

Creation

Let AI shape your own dedicated workflow

Assets, preferences, past projects, and creative habits are saved with the device, keeping your style consistent and getting smoother with use, forming a workflow that is yours.

  • Past assets and style preferences travel with you
  • Creative context is not interrupted when you switch devices
  • Your dedicated workflow gradually takes shape and solidifies

It is not “AI remembers everything” — rather: You decide what AI remembers.

COMPARE · Product Form Comparison

The same AI, different form, different ownership

Cloud assistants and local software each have their strengths. AI-U Shield represents another form: putting AI, your data, and your memory into a device you can carry with you.

Comparison Dimension Cloud AI Assistant Local AI Software AI-U Shield
How You Use ItLog in to an accountInstall softwarePlug and Play
Where AI RunsCloudCurrent computerPrivate device
Data StorageCloudCurrent computerInside the AI-U Shield device
Long-Term MemoryDepends on the platform serviceDepends on the current deviceCarried with the device
Switching ComputersLog in / sync againReconfigurePlug in and continue
Data AutonomyManaged by the platformManaged by the user (this machine only)Controlled by the user

Note: This table is only intended to present the differences between three forms — “cloud / local machine / portable private device” — and does not make any absolute judgment about the capability boundaries of any specific product; the capabilities of each product will continue to evolve with version iterations.

HOW IT WORKS · How It Works

Your AI environment goes where you go

No complex deployment or configuration is needed. AI processing, your data, and your memory all live in the device — what you carry away is not a USB drive, but your entire AI environment.

01

Plug in AI-U Shield

Plug and play — no software installation and no reconfiguration. The device recognizes your AI environment and goes straight to work.

02

AI enters your working environment

AI runs inside the private device that belongs to you. It starts working with your data and context already in hand, rather than being temporarily called from the cloud.

03

Memory Keeps Accumulating

Every conversation and every document keeps accumulating into your long-term memory. The more you use it, the better it understands you, and that understanding is saved with the device.

DeviceAI-U Shield
Private AILocal Storage
Private KnowledgeYour Data
Private MemoryLong-Term Accumulation
Your WorkflowUnderstands You Better

It is not an ordinary USB drive, nor a “USB drive with AI installed,” but a portable Personal AI Device — hardware, local AI, private data, and long-term memory form one whole.

SECURITY & PRIVACY · Security & Privacy

AI can understand you better and better, the data still belongs to you

The same underlying capabilities: enterprise users see compliance and security, while individual users see privacy and control. We do not split the two apart — this is exactly the hardware-level DNA that AI-U Shield has always had.

Local Storage

Conversations, outputs, and memory are saved in your device, and your data is not permanently stored in the cloud; when a model is called, the content you reference is sent with the request to the upstream model service to complete inference.

Data Isolation

Your data and conversation records are hosted independently by a private environment and are not mixed into public cloud data flows.

Hardware Encryption

With built-in encryption, data is protected at the hardware layer, building the line of defense from the device itself.

Private Deployment

Individuals can start right away; for enterprises, deployment plans can be discussed based on specific scenarios, subject to business confirmation.

Access Control

You decide who has access and what can be accessed. The boundaries for using your memory and data are clear and controllable.

Plug and Play

Not tied to one computer: the license belongs to your account and can be used across multiple devices. Plug in wherever you go.

The other side of data autonomy: cloud memory depends on the platform's service policies and capacity strategy; AI-U Shield hands the choice of “where memory lives and who manages it” back to you.

SPEC & TRUST · Specs & Trust

Capabilities as One Whole, Trust from the Product

AI-U Shield · Specifications at a Glance

  • Product FormPortable Hardware · Plug and Play
  • InterfaceUSB-A / USB-C
  • Data StorageLocal storage within the device
  • Model CallsCalls upstream models via a relay service
  • Memory StorageEncrypted partition built into the device
  • EncryptionHardware-Level Encryption

This page illustrates the product direction: the product is in the pre-launch stage, and reservations and requirement registration are now open; detailed specifications and support scope are subject to the official announcement of the launched product, and product details can be obtained through official channels.

WHY TRUST · Why You Can Trust It
  • Produced by Shenzhen Royin Interactive Technology Co., Ltd.Integrated in-house design of hardware and software, produced by the registered entity; launch timing and pricing are subject to official announcement.
  • Carrying On the Enterprise-Grade Security DNAThe personal edition and the enterprise edition share the same hardware security capabilities; enterprise deployment plans can be discussed separately.
  • Frontline Practice in the AI IndustryCo-organized the “Zhihui Yidao · Empowering All Industries” AI-themed exchange meeting, exploring implementation on the same stage as partners in clinical research, AI applications, supply chain, and other fields.
  • Dual-Channel ServiceDedicated staff are available both for individual users asking about the product and for enterprises / channels discussing cooperation.

Website filing number: Yue ICP Filing No. 2026102971 | Public Security filing number: Yue Public Security Network Filing No. 44030002016522

The question of “who owns the memory” —
leave it for you to answer yourself.

AI should remember you — and that memory should be kept by you.
Whether it is personal use or enterprise / channel cooperation, it all starts here.

400-989-7768 | contact@royin.net | Room 410, Tower A, Phase 1, ICC-Park, Longhua District, Shenzhen, Guangdong, China

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