One Teacher Screen.
50 Desktops. Zero Cloud Lag.

TKR-Cast broadcasts your desktop in real-time to every computer in your classroom, training institute, or office. Powered by efficient UDP multicast that streams 60 FPS video without choking your Wi-Fi router.

Standard Unicast Cloud Sharing
50x CPU & Bandwidth

When streaming to 50 students, traditional unicast software sends 50 duplicate video streams over the internet. Your presenter laptop stutters, network crashes, and students experience 3 to 10 seconds of delay.

TKR-Cast (UDP Multicast on LAN)
1x Stream • Sub-16ms

Your PC encodes the screen just once. The local network switch replicates the multicast frames to all 50 student monitors simultaneously. Presenter CPU stays cool and latency is imperceptible.

Built for Education & Collaboration

📡

Hardware UDP Multicast

Broadcast to unlimited PCs on the same LAN subnet with zero incremental CPU or bandwidth overhead. 1 viewer or 100 viewers use the exact same network load.

⚡

Instant Keyframe On-Demand

When a student PC launches midway through a lecture, TKR-Cast detects the new receiver and fires an immediate keyframe refresh so their display connects without any black screen delay.

🎮

Media Foundation Accelerated

Direct integration with Windows Media Foundation ensures high-framerate hardware encoding with smooth fallback to software JPEG on older classroom computers.

🎯

MTU-Bounded Slicing

High-resolution screen frames are sliced and reassembled across standard Ethernet MTU boundaries without router packet fragmentation or buffer drops.

🖥️

Per-Monitor Selection

Choose to broadcast your entire desktop, a secondary monitor, or a specific application window while keeping your personal notes hidden.

🔒

Zero Internet Requirement

Works entirely offline. Conduct exams, lectures, and live code walkthroughs securely inside an isolated, air-gapped lab.

Broadcast Architecture

Parameter Specification
Operating System Windows 10, Windows 11 (64-bit)
Streaming Protocol UDP Multicast (Standard IETF IGMP framing)
Framerate & Resolution Up to 60 FPS @ 1080p / 1440p / 4K
Host Encoding Overhead Constant O(1) CPU utilization regardless of viewer count
Security & Encryption LAN-scoped broadcast; no cloud tunneling or third-party telemetry
Binary Signature Authenticode SHA-256 (TKR Desk Software)
Verified Executable Hash 96BEF97A317AA31468749F6DFBE9DAEB796800073D725A68CEE9E88D9458FFB2

Start Broadcasting with TKR-Cast

Empower your classroom or lab with zero-lag screen sharing today.