TKLPU4 vMix Replay Server
An Affordable 8-Channel Instant Replay and Slow-Motion System
Multi-channel instant replay systems in sports are typically limited to professional and collegiate organizations due to their high costs. However, with the advanced capabilities of vMix Replay integrated into vMix Pro software, this financial barrier is effectively removed.

Nonetheless, operating a multi-camera replay system efficiently necessitates appropriate hardware. Our Systems leverages extensive experience in designing broadcast-ready production systems, and with the TKLPU4 vMix Replay Server, concerns regarding compatibility and reliability are largely alleviated. The TKLPU4 empowers sports broadcasters at all levels, from youth leagues to high schools, colleges, and beyond, to deliver eye-catching replays.

More About the TKLPU4
The TKLPU4 is a compact, rackmount video switcher and replay system based on vMix Pro live production software. The TKLPU4 packs all the essential features and I/O for running multi-camera replays from any location.

Today’s live events rely increasingly on a combination of traditional physical inputs like SDI and IP sources, including NDI and SRT. The LPU4 handles both with equal ease, packing eight (8) 3G-SDI inputs, two (2) 3G-SDI outputs, and vMix’s native support for NDI, NDI|HX, SRT, RTMP, and RTSP network video sources.

Key Features
Live switching of SDI and network video inputs
Includes perpetual license of vMix Pro software with 1 year of free version updates
8-channel replay and slow-motion playback with vMix Replay (standalone app or inside vMix)
NDI input and output
Up to 4096 x 2160 resolution (applies only to IP video inputs)
8 x 3G-SDI dedicated inputs
2 x 3G-SDI dedicated outputs
4 x external display outputs for user interface, multiview, and more
4 x overlay channels for graphics, text, images, and more
2 x media recorders
ISO recording on all SDI inputs
Simultaneous streaming to 3 destinations
Integrates with Zoom for capturing individual participants
GT Designer Standard and Advanced titling software included
8 x Remote callers with vMix Call feature
PTZ camera control
Technical Specifications
Form-factor: 4U rackmount/desktop
Video Inputs: 8 x Full-sized BNC 3G-SDI inputs, up to 1080p60
Video Outputs: 2 x Full-sized BNC 3G-SDI outputs, up to 1080p60
Display Outputs: 3 x DisplayPort 1.4a, 1 x HDMI 2.1a
Analog Audio Inputs: 1 x 3.5mm (1/8″) line level stereo input, 1 x 3.5mm (1/8″) microphone level input
Analog Audio Output: 1 x 3.5mm (1/8″) line level stereo output
Digital Audio Inputs: 8 x SDI stereo embedded digital audio inputs
Digital Audio Outputs: 16x SDI embedded digital audio outputs
Processing: 12-core Intel Core i9-14900KF processor
Graphics: NVIDIA GeForce RTX 5070 Ti with 16GB GDDR7 VRAM
Memory: 32GB DDR5
Storage:
OS/Apps: 1TB NVMe SSD
Recording/Replay: 2TB NVMe SSD
Removable: 4 x 2.5″ SATA hot-swap drive bays
Network: 2 x 2.5Gb/s Ethernet RJ-45 ports
Operating System: Windows 11 Pro
Dimensions: 17.00″ W x 16.89″ D x 6.96″ H / 432mm x 429mm x 176.78mm
Weight: 25 lbs / 11.34 kg