Castle
Private AI Hub
Local AI processing hub that powers the entire Guardian ecosystem. All intelligence happens in your home—zero cloud dependency. Modular architecture scales from single user to enterprise. Your data, your control, your AI.
Your Digital Guardian Angel. Health. Data. Environment. Finances. Travel. Life.
The brain of the Guardian ecosystem
Personal, Family, Business—panel-mount architecture with modular GPU scaling
1 User | 400×300mm Panel
BOM: $3,063 | Margin: 40%
2-5 Users | 500×400mm Panel
BOM: $5,899 | Margin: 40%
5-15 Users | 700×450mm Panel
BOM: $11,872 | Margin: 40%
Electrical panel design—mounts like a breaker box. Modular slots for GPU, CPU, storage, PSU. RJ45 connectivity top and bottom for LAN in, devices out. Hot-swap components without downtime.
The intelligence core for privacy-first AI
Devices are lightweight mirrors—sensors and displays. Castle is the mind. When AI improves, you upgrade Castle. All mirrors instantly benefit. Interfaces last years. Intelligence evolves monthly.
Monitor Cast turns any display into a workstation
Walk up to any monitor in your home. Voice command: "Voyager, activate workstation." Monitor Cast connects wirelessly. Keyboard/mouse pair via Bluetooth. Full desktop computing—no PC needed.
Eliminates $800-2,000 desktop PC purchase. Multiple workstations throughout home without multiple computers. One Castle = bedroom office + kitchen display + living room entertainment.
Castle runs 24/7. No boot time. Instant workstation activation at any display. Same files, apps, settings everywhere. Walk between rooms without closing work.
Upgrade one Castle instead of multiple PCs. Single point of backup and security. Software updates propagate to all displays. Lower total cost of ownership.
Productivity:
• Web browsing (full desktop browsers)
• Office suite (docs, sheets, presentations)
• Email and communications
• File management and cloud sync
Creative Work:
• Photo/video editing
• Graphic design
• Software development
• Media consumption (streaming, music)
The software layer that makes Castle intelligent
Three-layer context system that remembers everything, orchestrates automations, and connects apps—all locally on Castle.
L1
Working Memory
Real-time sensor streams, speech, context—last 8 hours
L2
Episodic Memory
Compressed daily summaries, relationships, patterns—months
L3
Knowledge Graph
Facts, preferences, entities—permanent semantic memory
WHEN → AND → THEN
Homey-compatible automation engine. Connect triggers (speech, location, vitals, time) to actions (apps, notifications, home control).
"When I get home AND it's after 6pm, turn on relax mode"
Communication (email, calendar, contacts, phone)
Home (lights, thermostat, locks, cameras)
Health (vitals, sleep, activity, medications)
Finance (banking, bitcoin, expenses, tax prep, capital gains)
Work (tasks, projects, meetings, CRM)
All apps follow open → execute → close lifecycle
"Castle, check my calendar"
"Castle, when did I last talk to Sarah?"
"Castle, disable sleep flow"
Apps, flows, and memory all accessible by voice through Core earpiece.
Upgrade components without replacing entire Castle
Plug-in processor upgrades without replacing motherboard. Ryzen 7 → Ryzen 9 → future generations. Investment protection as computing needs grow.
Add dedicated graphics for AI acceleration, video editing, gaming. RTX 4070 → 4090 → next-gen. Hot-swappable without full rebuild.
Hot-swappable drive bays. Add capacity as photo/video library grows. 2.5" and 3.5" drives supported. RAID configurations for redundancy.
Standard DIMM slots, expandable to 128GB. Start with 32GB, add more as workflows demand. No proprietary RAM required.
Optional 10GbE, Wi-Fi 6E, additional Ethernet ports. Scale connectivity as smart home grows. Plug-in network upgrades.
Specialized NPU/TPU modules for AI workload optimization. Google Coral, Hailo-8, future accelerators. Stay current with AI hardware evolution.
Start with Home Tier ($899). Add GPU module when you need video editing. Expand storage as family grows. Upgrade CPU when AI models demand more power. Modular investment > replacing entire systems.
From single user to enterprise deployment
Production-ready hardware with complete BOM
Retail: $899 | BOM: $600-700 | Gross Margin: 22-33% | AI Capacity: 1-13B parameter LLMs | Bitcoin Node: 10GB lightweight
TPM 2.0: FIDO2 biometric keys + Bitcoin private keys | Self-Encrypting SSD: TCG Opal | Tamper-Resistant: IP54 aluminum enclosure | Compliance: HIPAA/SOC2-ready
Why Castle wins vs cloud AI, NAS, home servers
All AI processing local. No cloud transmission. Your conversations, photos, health data never leave your home. Hardware kill switches for physical control. Zero telemetry to manufacturer.
Runs LLMs locally (Llama, Mistral). Vision models for photo analysis. Voice recognition and synthesis. Not a thin client to cloud—actual AI inference in your home.
Coordinates all Guardian devices. Core, Band, Visor, Fold, Conduit, Gesture Pad all connect to Castle. Unified intelligence across ecosystem. One brain, many sensors.
Monitor Cast enables workstations without dedicated PCs. Multiple users can access simultaneously. Replaces $800-2,000 desktop purchase. Lower power consumption than multiple computers.
Plug-in CPU, GPU, storage, memory modules. Upgrade components without replacing entire Castle. Investment protection as technology evolves. Pay-as-you-grow economics.
Integrated automation platform. Control smart home devices. API management for third-party services. Automation flows and webhooks. Not just AI—complete home intelligence.
Year-round transaction tracking. Automated tax preparation — your return is ready January 1st. Capital gains computed locally. Bitcoin portfolio management with self-custody. No Intuit, no TurboTax, no uploading your financial life to the cloud. Your money, your data, your taxes.
How Castle powers every device
All devices → Encrypted transmission → Castle → Local AI processing → Results distributed back to devices. Zero cloud. Complete privacy. Sub-100ms latency.
$258B addressable market across PC, NAS, and AI infrastructure
Castle + Core + Med Band + LTE = Complete replacement for phones, watches, and subscriptions
Castle Personal: $4,288
1× Voyager Core: $249
1× Med Band: $549
LTE (Year 1): Included
1 user, complete system
Castle Family: $8,259
5× Voyager Core: $1,245
5× Med Band: $2,745
LTE (Year 1): Included
5 users, $2,450/person
Castle Business: $16,621
15× Voyager Core: $3,735
15× Med Band: $8,235
LTE (Year 1): Included
15 users, $1,906/person
| Item (Family of 5) | Traditional | Guardian |
|---|---|---|
| Phones (5 yr replacement) | $10,000 | $0 |
| Smartwatches | $4,000 | $0 |
| Phone plans (5 yrs) | $18,000 | Included |
| Cloud storage (5 yrs) | $600 | $0 |
| AI subscriptions (5 yrs) | $6,000 | $0 |
| Health wearable subs (Whoop/Oura) | $9,000 | $0 |
| TOTAL (5 years) | $47,600 | $12,249 |
$35,351
Family Saves
74%
Cost Reduction
Own
Everything Forever
Replaces phones, laptops, desktops, subscriptions—for families and small businesses
Replace 5 phones + watches with Core + Med Band. Kids get AI without screen addiction. Parents control data. No monthly bills. Health monitoring for whole family. Saves $35k over 5 years.
Local AI for customer service, inventory, scheduling. Employee health monitoring. No per-seat SaaS fees. Data never leaves premises. $1,906 per employee, one-time.
HIPAA-compliant by architecture. Patient vitals via Med Band. Voice symptom logging via Core. Local AI for clinical decision support. No cloud exposure.
Fall detection, medication reminders, emergency alerts. 24/7 health monitoring. Voice interface via Core—no screens needed. Family dashboard on Castle.
Reject Big Tech surveillance. Own your data. Local AI that never phones home. Bitcoin/Lightning integration. True data sovereignty. Automated tax prep and financial tracking — no uploading your financial life to Intuit or the IRS cloud.
Work from anywhere with Core LTE. Castle at home processes everything. No corporate VPN needed. Encrypted tunnel to your own infrastructure.
Market timing and competitive positioning
Llama 3.1, Mistral, Phi-3 run on consumer hardware. Performance approaching GPT-4 for many tasks. Quantization techniques enable efficient inference. Technology finally ready for private AI.
$20/mo ChatGPT + $10/mo cloud storage + $15/mo streaming = subscription exhaustion. Guardian's "own once" model resonates. ROI in 14-30 months.
EU AI Act, GDPR enforcement, CCPA in California. Corporations caught mining training data. Consumers demand data sovereignty. Local-first architecture is solution.
Ryzen 7 CPUs 40% cheaper since 2021. DDR4 RAM commoditized. NVMe SSDs <$0.10/GB. NPU acceleration available. Economics enable $899 entry point.
40% of workforce remote/hybrid. Home office infrastructure investment. Need for private collaboration tools. Castle enables professional home computing.
NAS: no AI. Cloud AI: no privacy. Mac Mini: walled garden, cloud-dependent. Custom PC: no ecosystem integration. No one offers local AI + desktop replacement + mirror orchestration. Blue ocean.