Many computer users want to be able to use a second monitor with their system to get more screen space. Some users also want to be able to connect additional sources to their existing screens as well. Atlona has announced a new converter that changes a dual link DVI to a mini DisplayPort.

The device is model AT-DP400 and while it is compatible with Mac and PCs, the device is specifically designed for the 27" iMac. When used with the iMac the converter supports resolutions up to 2560 x 1440. On PC systems, it supports up to 2560 x 1600.

The device will allow 1080p full HD resolution and gets all the power it needs from a USB port. The converter is HDCP compatible for Blu-ray playback and can be used to connect a PS3 or Xbox to the 27" iMac at 720p resolution. The converter will ship in March for $199 and can be pre-ordered now.