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StarTech DMSVGAVGA1 DMS-59 to Dual VGA Y-Cable Splitter
Overview
The StarTech DMSVGAVGA1 converts a single DMS-59 (59-pin) graphics port into two independent VGA outputs, letting a workstation, thin client, or video wall controller drive two analog monitors from one card connector. At 8.0 in [203.2 mm] overall length, it's built as a short breakout cable rather than a desk-spanning run — designed to sit right at the graphics card or DMS-59 output and hand off to standard VGA runs from there. For control rooms and monitoring walls still running VGA displays off DMS-59 dual-head graphics cards, DMSVGAVGA1 is the direct path to getting both heads active without replacing hardware.
Key Features
- DMS-59 (59-pin) input connector: matches the dual-head output found on many workstation and server graphics cards used in video wall controllers and multi-monitor operator stations — no adapter chain required between card and cable.
- Two VGA (15-pin High Density D-Sub) outputs: each leg terminates in a standard VGA connector, so both ports feed straight into common analog monitors, KVM extenders, or matrix switcher inputs already in the rack.
- Splits one DMS-59 port into two independent displays: recovers a second monitor output from hardware that would otherwise only expose one head, useful when a graphics card's second port was never broken out.
- 8.0 in [203.2 mm] cable length: short by design — it's meant to live at the card/chassis and hand off to standard VGA extension cable for the actual monitor run, keeping the connector cluster tidy inside a rack or PC case.
- Compact dimensions — 8.0 in L x 1.6 in W x 0.6 in H: the Y-splitter body stays low-profile enough to route inside a tight rack shelf or behind a monitor arm without fighting for clearance.
- 4.2 oz [119.0 g] weight: light enough that the cable won't stress the DMS-59 port or pull loose from vibration in a mobile rack or vehicle-mounted monitoring station.
- Lifetime warranty: covers the cable for the working life of the installation, which matters on a passive component that's expected to sit behind a rack panel for years without being touched again.
Integration & Compatibility
DMSVGAVGA1 is a passive splitter cable — it works with any graphics card, KVM extender, or video wall processor exposing a standard DMS-59 output, and hands off to any display or extender accepting standard VGA input. Because it doesn't require drivers or power, it fits equally into control-room video walls, industrial PCs, and legacy analog monitoring setups where DMS-59-equipped hardware is still in service. If your monitoring environment is transitioning off VGA entirely, pair this cable strategy with a broader look at IP cameras and digital display infrastructure rather than extending analog runs further. For sites still standardizing rack layouts, a PoE and cable planning guide covers how to keep mixed analog/digital runs organized. Consider a network video recorder lineup if the underlying goal is modernizing a VGA-fed monitoring wall to digital displays rather than continuing to split the analog signal.
What's in the Box
1x StarTech DMSVGAVGA1 DMS-59 to dual VGA Y-cable.
Frequently Asked Questions
Q: What does the DMSVGAVGA1 connect to?
A: It connects a single DMS-59 (59-pin) graphics card output to two separate VGA (15-pin HD D-Sub) monitors or displays.
Q: How long is the DMSVGAVGA1 cable?
A: The cable measures 8.0 in [203.2 mm] in length, designed to break out at the graphics card with standard VGA extension cable used for the remaining run to each monitor.
Q: What is the warranty on the DMSVGAVGA1?
A: It carries a lifetime warranty.
Q: How much does the DMSVGAVGA1 weigh?
A: 4.2 oz [119.0 g].
Q: Does the DMSVGAVGA1 require external power or drivers?
A: No — it is a passive splitter cable and requires no power or driver installation.

The DMSVGAVGA1 shows up on my bench whenever someone's got a DMS-59 dual-head graphics card and only one monitor lit up. It's a straightforward 59-pin-to-dual-VGA breakout, and at 8.0 in [203.2 mm] it's meant to hand off to real VGA cable right at the card, not run across a rack.
Technical Highlights:
- DMS-59 to dual VGA split: recovers the second head on cards where only one VGA port was ever broken out — no need to swap the graphics card just to light up a second display.
- 8.0 in [203.2 mm] length: short enough to tuck behind the chassis or rack shelf; plan on adding standard VGA extension cable for the actual monitor runs.
- 4.2 oz [119.0 g], 1.6 in x 0.6 in cross-section: low mass and low profile keep strain off the DMS-59 connector, which matters in mobile racks or anything that sees vibration.
Deployment Considerations:
- Confirm your graphics card or KVM extender actually exposes a DMS-59 port before ordering — this cable won't adapt DisplayPort or DVI-sourced dual-head outputs.
- Because it's only 8 in long, budget for separate VGA extension cable to reach monitors mounted any real distance from the source hardware.
Right fit for a control room still running a DMS-59 dual-head card into two analog monitors on a video wall — it's a direct, passive way to get both heads active without touching the graphics hardware.
Compare with similar
StarTech DMSVGAVGA1 - Connect TWO VGA Monitors TO Your DMS / LFH
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