The ST122DVIA DVI splitter lets you share one DVI video and audio source on two displays and acts as a signal amplifier that allows you to locate your DVI monitors up to 33ft (10 m) away from your computer or DVI signal source.
StarTech.com 2 Port ExpressCard 1394b FireWire Laptop Adapter Card - 2 x 9-pin Female IEEE 1394b FireWire
This 2 Port ExpressCard FireWire Adapter Card adds two 1394b FireWire ports to a laptop computer, providing a cost-effective way to add IEEE 1394A and IEEE 1394B FireWire devices even if the laptop doesn't have a built-in FireWire 400 or FireWire 800...
StarTech.com 2 Port ExpressCard Laptop USB 2.0 Adapter Card - 2 x 4-pin Type A Female USB 2.0 USB
StarTech.com 2 Port ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP Support
The ECUSB3S22 2-Port ExpressCard USB 3.0 Card adds 2 SuperSpeed USB 3.0 ports to an ExpressCard-enabled computer system, using a 34mm form factor that will fit in both 34mm and 54mm slots, along with ports mounted side-by-side to provide room for easy...
StarTech.com 2 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention - 1 x Type A Male USB
StarTech.com 2-Port HDMI Automatic Video Switch - 4K 2x1 HDMI Switch with Fast Switching
StarTech.com 2-Port HDMI automatic video switch w/ aluminum housing and MHL support
StarTech.com 2 Port HDMI KVM Switch, 4K 60Hz, Compact Dual Port UHD/Ultra HD USB Desktop KVM Switch with Integrated 4ft Cables & Audio, Bus Powered & Remote Switching, MacBook ThinkPad - 4K KVM Switch w/ Audio (SV211HDUA4K) - KVM / audio switch - 2 ports