• Requires Mac Pro (Early 2009 with 1066MHz DDR3 memory) or Mac Pro (Early 2008 with 800MHz DDR2 FB-DIMM memory) with PCI Express 2.0 slot
• Mac OS X v10.5.6 or later

Product Description
For incredible graphics processing power, the ATI Radeon HD 4870 with 512MB of GDDR5 memory is the ultimate choice for visual creative, scientific, and technical applications.

ATI Radeon HD 4870 includes two video ports: one Mini DisplayPort and one dual-link DVI port. This allows you to connect both the 24-inch Apple LED Cinema Display or another Mini DisplayPort-based display, and a DVI-based display such as the 30-inch Apple Cinema HD Display…. More >>
ATI Radeon HD 4870 Graphics Upgrade Kit – Graphics adapter – Radeon HD 4870 – PCI Express 2.0 – 512 MB GDDR5 – DVI, DisplayPort

Product Description
The Lenovo USB-to-DVI Monitor Adapter just made adding multiple high-resolution (HD) resolution monitors as easy as plugging into a USB port. The Lenovo USB-to-DVI Monitor Adapter helps to increase productivity by doubling or tripling your visual 2D-business graphics workspace. Set-up is simple…. More >>
Lenovo USB-to-DVI Monitor Adapter – Graphics adapter – Hi-Speed USB – DVI

• Universally extends your computer to an extra display, speakers, ethernet, and 4 USB 2.0 ports
• Works with any PC brand. Drivers for Windows, Mac, and Linux. Version details and limitations below
• DVI/VGA connector and DisplayLink USB virtual graphics adapter supporting up to 1680×1050 32bpp
• 10/100 Ethernet RJ-45 connector, 3.5 mm plugs for stereo speaker and microphone, security slot
• Simple and small with no moving parts, no fans, no internal state, all standard USB 2.0

Product Description
TYPICAL USES: Get around the limitations of your laptop or netbook with a single, simple USB 2.0 connection to a full-sized display, keyboard, mouse, speakers, and other USB 2.0 devices which can stay on your desk; Share this common set of devices among several users with a swap of the USB cable; use the flexibility of the virtual USB graphics card to extend your Windows or Mac desktop across both displays; use the docking station as a terminal allowing additional logins to the same PC [with additional software, not included]. PERFORMANCE LIMITATIONS: USB virtual graphics provides full performance for office applications and web browsing, but videos and 3D games should be played on the computer’s main screen. OS VERSION COMPATIBILITY: Windows – Windows XP 32-bit, Vista and Win7 32/64-bit with latest service packs. No support for Windows Server versions. Intel Mac 10.4.11 and Mac OS X 10.5.5 or later. GPL driver source on Linux and other platforms. X Window… More >>
Plugable Universal USB 2.0 Docking Station with 4-port USB Hub and DisplayLink DVI/VGA, Audio, and Ethernet Ports – Designed for Netbooks, Laptops, and Terminals