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Four is the most I've seen (nVidia Quadro). &nbsp;For more monitors, multiple cards are required.
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Four is the most I've seen (nVidia Quadro).  For more monitors, multiple cards are required.

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Matrox also do the G450 MMS Quad card, which I've used on a number of pcs - only one in each! &nbsp;No reason why you can't add more though.
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Matrox also do the G450 MMS Quad card, which I've used on a number of pcs - only one in each!  No reason why you can't add more though.

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To the best of my knowledge, Callandor is correct - &nbsp;while Nvidia, Matrox, and ATI all offer quad-monitor cards, to setup more than 4 monitors on a single system, you would need at least two video cards, and a system with expansion slots for two video cards (either 1 AGP and 1 PCI, or 2 PCI-Express.)
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To the best of my knowledge, Callandor is correct -  while Nvidia, Matrox, and ATI all offer quad-monitor cards, to setup more than 4 monitors on a single system, you would need at least two video cards, and a system with expansion slots for two video cards (either 1 AGP and 1 PCI, or 2 PCI-Express.)

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So, I can put two of these cards in one machine and be able to hook up six monitors without any additional hardware or sepecial stuff? &nbsp;Does the machine need anything special to accept 2 cards?<br />
<br />
thx,<br />
al
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So, I can put two of these cards in one machine and be able to hook up six monitors without any additional hardware or sepecial stuff?  Does the machine need anything special to accept 2 cards?

thx,
al

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Does any one know of a video card that can support more than four monitors?<br />
<br />
Thanks, <br />
al
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Does any one know of a video card that can support more than four monitors?

Thanks, 
al

Multi monitor video card

A desktop computer is a personal computer designed for use at a single location due to its size and power requirements, usually by one person. The most common configuration has a case that houses the power supply, motherboard, disk storage (usually one or more hard disk drives and optical disc drives); a keyboard and mouse for input; and computer monitor and printer for output. The case may be oriented horizontally and placed atop a desk or vertically and placed underneath or beside a desk.