StarTech ST122LE 2-Port USB-Powered VGA Video Splitter

Overview

The StarTech ST122LE is a compact, USB-powered VGA splitter that mirrors a single video source to two independent displays — no external power brick required, no driver installation, no rack space consumed. If you're distributing a workstation signal to a secondary monitor, a local display plus a remote repeater, or a presentation source across two screens, the ST122LE handles it cleanly with a 300MHz video bandwidth ceiling that supports resolutions well above standard HD. At 3.5 oz and just under 16 inches long including cables, it installs in minutes and disappears behind the equipment it supports.

This is a point-of-deployment tool for AV integrators, IT architects managing multi-display workstations, and operations teams that need a no-fuss signal distribution solution without the overhead of a managed matrix switcher. For broader AV distribution equipment options or the full StarTech product catalog, those are worth browsing alongside this unit.

Key Features

• 300MHz Video Bandwidth: At 300MHz, the ST122LE supports resolutions up to 2048x1536 — well past 1080p and into QXGA territory. In practice, this means you're not sacrificing image fidelity even on high-density displays; the signal headroom is there for demanding content like CAD renders or security monitoring consoles.
• 2048x1536 Maximum Resolution: QXGA support means this splitter won't become the bottleneck in a high-resolution deployment. Both outputs can carry the full source resolution simultaneously — useful for dual-monitor review stations or command center builds where detail matters.
• USB Bus-Powered (5V DC / 0.5A): Power comes directly from a standard USB port — no wall adapter, no cable clutter. At 0.5A draw, it won't stress a USB hub or a host port on a workstation. This makes it genuinely portable and eliminates a failure point (a missing or failed power adapter) from the installation.
• Up to 200 ft Signal Reach: The ST122LE supports cable runs up to 200 feet, which covers most in-building distribution scenarios — from a server room to displays on the other end of a large floor, or across a warehouse operations area. Beyond 200 ft, you'd need an active amplifier or a different signal type entirely.
• 2-Port Output: Two VGA outputs allow simultaneous mirroring to two displays from one source. Both outputs are active at the same time — no switching required, no software configuration.
• Compact Form Factor (15.7 x 1.8 x 0.9 in): The inline form factor means it mounts behind a display, tucks into a cable tray, or sits flat on a desktop without occupying rack space. At under 4 oz, it's not adding meaningful load to cable management systems.
• 0°C to 70°C Operating Range: Standard commercial operating temperature range — handles typical climate-controlled office, server room, and light industrial environments without issue. Not rated for outdoor or uncontrolled temperature environments.
• 2-Year Manufacturer Warranty: StarTech's 2-year warranty coverage provides a reasonable service window for a passive distribution component deployed in a fixed installation.

Integration and Compatibility

The ST122LE works with any VGA-equipped source — workstations, laptops with VGA output, digital signage players, or legacy security DVRs with VGA monitor outputs. No drivers are required; the splitter is transparent to the host system. Both output ports carry an identical signal, so the source sees a single display regardless of what's connected downstream.

For installations where you're pairing a local monitor with a remote display, keep cable runs in mind: the 200 ft maximum applies to the total cable length from splitter to display. Use quality shielded VGA cable to preserve signal integrity at longer runs, especially at higher resolutions. If you're building out a broader video signal distribution infrastructure, consider whether a managed VGA switch or a higher-port-count distribution amplifier better matches the scope.

Power delivery is worth confirming at the host end: the ST122LE draws 5V DC at 0.5A via USB. Most modern USB 2.0 ports on workstations and hubs deliver this comfortably, but verify available current if you're powering from a port-limited embedded system or a USB hub already under load. For projects requiring PoE-based display distribution or HDMI/DisplayPort infrastructure, browse the full AV connectivity lineup for alternatives suited to those signal types.

Frequently Asked Questions

Q: What is the maximum resolution the ST122LE supports?

A: The ST122LE supports a maximum resolution of 2048x1536 (QXGA), backed by a 300MHz video bandwidth. Both output ports carry the full source resolution simultaneously.

Q: Does the ST122LE require an external power supply?

A: No. The ST122LE is USB bus-powered, drawing 5V DC at 0.5A from a standard USB port on the host computer or a USB hub. No wall adapter is needed.

Q: What is the maximum VGA cable length supported by the ST122LE?

A: StarTech rates the ST122LE for cable runs up to 200 feet. Signal quality at maximum length is best preserved with quality shielded VGA cable, particularly at higher resolutions.

Q: Can the ST122LE display different content on each output?

A: No. The ST122LE is a splitter, not a matrix switcher — it mirrors the identical source signal to both outputs simultaneously. Independent content on each output requires a different device.

Q: What is the warranty on the ST122LE?

A: The ST122LE carries a 2-year manufacturer warranty.

Q: What are the operating temperature limits for the ST122LE?

A: The ST122LE is rated for operation between 0°C and 70°C (32°F to 158°F), suitable for climate-controlled office, server room, and light commercial environments.

Jerry Tildsen

The spec that matters most here is the 300MHz video bandwidth on the ST122LE — that's not a marketing number, it's what lets you push 2048x1536 to both outputs without the signal degradation you'd see on a cheaper passive splitter running the same resolution. I've seen budget splitters pull the source resolution down to 1024x768 under load; the ST122LE's bandwidth headroom prevents that.

Technical Highlights:

• 300MHz Bandwidth: Supports full 2048x1536 QXGA on both outputs simultaneously — no resolution compromise at the splitter itself, which is the failure point on lower-spec units.
• USB Bus Power (5V / 0.5A): Eliminates the power adapter failure point entirely. In fixed installations, that's one less thing to troubleshoot when a display goes dark at 2 AM.
• 200 ft Cable Support: Covers most in-building runs without an inline amplifier. Plan your cable routing before installation — 200 ft is a hard ceiling, and signal quality degrades noticeably if you're using unshielded cable near that limit.

Deployment Considerations:

• Verify the USB port at the host can reliably deliver 0.5A — this is rarely an issue on a modern workstation but can be a real constraint on thin clients, embedded controllers, or overloaded USB hubs.
• The 0°C lower operating limit means this is not a fit for unheated spaces in cold climates; if the equipment room drops below freezing, you need a unit with a wider thermal rating.

The ST122LE is the right call for a security operations center workstation feeding a local operator display and a remote supervisor monitor from a single DVR VGA output — clean signal, no driver overhead, and a form factor that disappears into the cable bundle.