can you use dual monitors simultaneous or only one?

Depends on the video card you choose, we purchased ours with a three monitor video card and it works great.

Questions & Answers: Refurbished: DELL Desktop Computer OptiPlex 7020 Small Form Factor Intel Core i7 4th Gen 4790 (3.6 GHz) 8GB Memory 500 GB Hard Drive Windows 7 Professional 64bit

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DELL Desktop Computer OptiPlex 7020 Small Form Factor Intel Core i7 4th Gen 4790 (3.6 GHz) 8GB Memory 500 GB Hard Drive Windows 7 Professional 64bit

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