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Datavideo

Datavideo VP-634 3G/HD/SD-SDI Repeater Extender 328ft

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3G/HD/SD-SDI repeater that re-clocks signal with embedded audio across a 328-foot run for live multicam and field-deployed cable extensions

$355.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Datavideo VP-634 fills a specific slot in a live-production cable plant: an SDI signal repeater designed to keep 3G, HD, or SD-SDI video and embedded audio intact over a 328-foot run that would otherwise risk attenuation, jitter, or sync drop-out. It is positioned for multicam shoots, broadcast remotes, houses of worship, and corporate AV installs where camera positions sit far from the switcher, and where running a powered amplifier on the camera end is impractical. By re-clocking rather than passively buffering, the VP-634 cleans up the timing of the SDI signal instead of forwarding accumulated cable noise, which matters once cable lengths begin to chain together inside a real venue.

Build-wise, the VP-634 is the non-powered complement to the DC-powered VP-633: it draws its operating power from its sibling at the other end of the run rather than carrying its own supply, which simplifies field deployment but does require pairing with the VP-633 for a complete two-end solution. Format support tops out at 1080p/60 NTSC and 1080p/50 PAL, sizing it to HD multicam pipelines rather than 4K or 12G-SDI cinema workflows. For productions already standardized on SDI infrastructure with embedded audio, the VP-634 is a quietly utilitarian piece that earns its place by keeping cable runs reliable when distance becomes the primary failure mode on the set.

Key Features

Extends SDI video signal with embedded audio 328 ft

Supports resolutions up to 1080p/60 NTSC or 1080p/50 PAL

Non-powered complement to optional DC-powered VP-633; gets power from VP-633

Maintains quality by re-clocking

Specifications

Brand
Datavideo
Manufacturer
Datavideo
Model
VP-634
Function
SDI Signal Repeater
Signal Support
3G/HD/SD-SDI
Maximum Cable Distance
328 ft
Embedded Audio
Supported
Maximum Resolution (NTSC)
1080p/60
Maximum Resolution (PAL)
1080p/50
Signal Conditioning
Re-clocking
Power
Non-powered, drawn from VP-633
Companion Unit
VP-633 (DC powered, sold separately)

Pros & Cons

👍 Pros

  • Extends 3G, HD, or SD SDI video plus embedded audio out to 328 feet, opening up longer cable runs on set
  • Re-clocks the signal rather than passively passing it, preserving cleanliness over the extended cable distance
  • Supports resolutions up to 1080p/60 NTSC or 1080p/50 PAL, covering common HD multicam and broadcast workflows
  • Operates without its own power supply when paired with the optional VP-633 upstream unit on the other end

👎 Cons

  • Caps at 1080p/60 — does not handle 4K UHD-SDI or 12G workflows now common on cinema and high-end OB productions
  • Non-powered design depends on a paired VP-633 to receive operating power, adding a second unit to plan for
  • Strict SDI in and out — no HDMI conversion or NDI bridging for hybrid camera and IP-based production environments
  • Single-channel signal repeater rather than a distribution amplifier, so multi-output runs require additional gear

Frequently Asked Questions

It supports 3G-SDI, HD-SDI, and SD-SDI signals with embedded audio, covering standard broadcast and HD multicam pipelines but not 6G or 12G-SDI 4K workflows.
It is rated to extend SDI video with embedded audio up to 328 feet, providing re-clocking along the path rather than acting as a passive cable extender.
No — it is the non-powered complement to the VP-633, drawing its operating power from a paired VP-633 unit at the other end of the cable run.
No — its specified maximum resolution tops out at 1080p/60 NTSC or 1080p/50 PAL, so 4K UHD-SDI productions need a 6G or 12G-rated repeater instead.
No — it is purely an SDI repeater with embedded audio, designed for SDI-to-SDI extension within an existing serial digital infrastructure rather than HDMI or IP video.

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