Sewell dvDeck USB to DVI, VGA, External Video Card, High Resolution, 1600 x 1200

"Fast shipping, product as described. Will buy again..."



Update: New Mac Drivers Released for Snow Leopard:Mac OSX driver download (note: Mac driver supports only Intel-based Macs). See the tech blog for a review of the original Mac driver which was tested in house here.

usb to dvi connection diagram

Also: The USB to DVI supports up to six simultaneous displays when using six adapters, including widescreen displays, extending your desktop. See the article here.

Adding a quality DVI or VGA display through your USB port used to be science fiction. It is now science fact with the USB to DVI-I adapter. With onboard memory and video processor, it is an external video card you attach to your computer with a USB cable.

It used to be that you could add a display via a USB port, but the refresh rate and video quality was lacking. With this USB to DVI display adapter, complete with VGA adapter, you can add either a DVI or VGA display that behaves just like a monitor connected to a standard video card. It operates at a high resolution of 1600 x 1200.

The secret is video compression algorithm inside this little external video card. It carries the top-of-the-line DisplayLink chip that guarantees smooth performance on your secondary displays. Memory this large allows the adapter to perform like a standard video card. The USB pipeline (maxing out at around 480 mbps) is more than enough bandwidth to provide top-notch video connectivity.

Tested In-House

As excited as we were for the release of this model, we tested it right when they came in. Using two simultaneously, the unit performed with flying colors.

We tested it on an unimpressive Dell Latitude D520 Centrino Duo with 512 RAM and it easily handled five USB to DVI adapters driving 19- to 21-inch flat screens (including widescreens). We also used the auxiliary display port on the laptop's docking station for a total of six simultaneous beautful displays, including the laptop's built-in display.

Your Multiple Monitor Options dvDeck Minideck Minideck 3.0

Stop by our multiple monitors DIY page to see all your options.


Mfg. Part Number



  • Sewell


  • Add an extra DVI LCD monitor or projector using a single USB 2.0 port.
  • Supports widescreen formats
  • Plug & Play
  • Hot-plug; add or remove monitor without system reboot
  • Windows Vista Compatible (along with others, see System Requirements)
  • Resumes from hibernation and suspend modes.

Minimum System Requirements

  • CPU with 1.2 GHz or higher processor (Intel Pentium / Celeron family, AMD K6 / Athlon / Duron family, or compatible processor.
  • 256 MB RAM
  • One available USB 2.0 port
  • 30 Mb of available disk space
  • XP SP2 32-bit, Vista (32 and 64-bit), Windows 7 (32 and 64-bit), Windows Server 2003 (32 bit only), Windows Server 2008 (32 and 64 bit), Windows Server 2008R2 (64 bit)
  • Super VGA (800 x 600) or higher resolution monitor

DVD playing

  • To use this adapter to view video like from a DVD: Dual Core CPU at 2.0 GHz processor clock needed - The screen's resolution must be set to 800 x 600 with 16-bit color

Package Contents

  • USB Display Adapter
  • Driver CD
  • USB Cable
  • Quick Install Guide
  • DVI to VGA adapter (High Res.)

Tech Specs

  • Host Interface: USB 2.0
  • Connectors: Video output: DVI-I 24-pin + 5-pin Female Connector
  • Host upstream link: USB Mini-B Type Female Connector
  • Supported Standard Resolutions: 640 x 480, 800 x 600, 1024 x 768, 1280 x 960, 1280 x 1024, 1600 x 1200
  • Supported Widescreen Resolutions: 720x400, 832x624, 1152x870, 1360x768, 1366x768, 1440x900, 1680x1050
  • Widescreen Displays Supported
  • Housing: Plastic
  • Dimensions: 84.3 (L) x 54 (W) x17.8 (H) mm
  • Power Mode: Bus-powered
  • Operating System Support: XP SP2 32-bit, Vista (32 and 64-bit), Windows 7 (32 and 64-bit), Windows Server 2003 (32 bit only), Windows Server 2008 (32 and 64 bit), Windows Server 2008R2 (64 bit)
  • Mac (Intel Based) OS X Tiger 10.4.11, Leopard 10.5.2+
  • (Only works with Intel based Macs)
  • Supported Modes: Mirrored Desktop, Extended Desktop, Primary Display
  • Supported colors: 16 Bits and 32 Bits
  • Regulatory Compliances: FCC, CE



105 Total Reviews -

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(76) 72.38 %
(26) 24.76 %
(1) 0.95 %
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(2) 1.90 %

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Have experience with this product?

Most helpful reviews

Works with virtual Windows PCs, too

Fuzzy-Wan - 3/3/2008 8:51:59 PM

13 found this review helpful

Pros: I'm using this to get around a limitation of VMware Fusion: lack of support for multiple monitors in Windows. I plugged it into my MacBook Pro, installed the *Windows* drivers in the virtual machine, et voilà. Instant second monitor.

Cons: The mouse gets squirrelly because it doesn't know what the @#$% is going on, but forcing Fusion to draw the mouse pointer in software pretty much fixes that.

Other: I wasn't sure it would work, but I was cautiously optimistic about the DisplayLink technology. Turned out to be a good bet.

Plug and Play Perfection

Anonymous - 7/15/2008 12:46:09 AM

7 found this review helpful

Pros: I looked high and low for an easy and affordable way to add multiple monitors to my MacBookPro. I finally stumbled across a forum post about the Sewell USB to DVI external video card which had just released Mac beta drivers. I took a chance and tried it.. it was exactly what I was looking for. I plugged it in, turned on my MBP and it worked instantly. I liked it so much I bought another one to use at work.



YES - Windows 7 Driver

Paul - 7/13/2009 1:01:15 PM

6 found this review helpful

Pros: This is a great product. It is so nice to work on dual monitors. Upgraded to Windows 7 Beta and lost the driver a few months ago. Thanks for getting the driver update out ahead of Windows 7 release. Very much appreciated!!



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Most recent reviews

Highly Recommend!

Matt - 11/19/2012 11:22:30 AM

This product works perfectly. The resolution of 1600x1200 is exactly what I use for my other monitors, so this was a perfect option for me. The taskbar options are very easy to use.

Anonymous - 9/20/2012 7:34:13 PM

Small, works, good price


Steve - 2/13/2012 1:28:58 PM

Let me add third monitor. Perfect picture. Fast, Can watch movies on it with no problem.

Anonymous - 11/15/2011 11:23:11 AM

Very, Very Nice

forg3 - 6/1/2011 11:42:21 AM

Does the job and runs great both on VGI and DVI for OS X 10.6 on MacBook Pro 2010


See all 93 questions


I have a laptop and two additional monitors. Do I need two USB to DVI addaptors or will one control the laptop, plus the two external monitors?


Typically your laptop will have an integrated monitor ouput for one external screen, then one USB to DVI would drive the second external monitor. If you need a third external montior (or if you don't have a video out from the laptop) then you would want two USB to DVI adapters.

37 out of 46 found this helpful.

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Does this product support 1680x1050, and will it support all resolutions (including that one) when the Mac driver is released?


Yes, it will support 1680x1050 resolution, also when the Mac driver is released.

30 out of 37 found this helpful.

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my new HP touchsmart runs on a windows 64bit system. do you have drivers in the works for this or is there a divice the I can buy that will give me video out from a usb port? Please Please help me.


Unfortunately, Windows 64-bit drivers are not available at this time. The chipset manufacturer is working on them, but they are not yet available. We do not have any USB video adapters like this that do support Windows 64. UPDATE: now with Vista and Windows 7 64-bit support! (Does NOT support XP 64-bit)

19 out of 23 found this helpful.

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Sewell dvDeck USB to DVI, VGA, External Video Card, High Resolution, 1600 x 1200


Driver Downloads

Mac OS X Driver - Release Version Mac Driver, compatible with 10.4 Panther - 10.7 Lion. Updated December 2011

Mac OS X 10.6-10.9 Driver - Mavericks 10.9, Mountain Lion 10.8, Lion 10.7, Snow Leopard 10.6. DisplayLink 2.1. Updated Nov 2013

Windows Driver - Windows 8.1* (32 & 64 bit), Windows 8* (32 & 64 bit), Windows 7* (32 & 64 bit), Windows Vista* (32 & 64 bit), Windows XP* (32bit). Updated June 2014

Documentation Downloads

OS X Manual -

Windows Manual -