Does anyone know if the 990 is capable of dual link, or is it just single link DVI in & out. You can't tell by the connection itself as they both connect in the same manner, but dual will have additional twisted pairs in the cable providing a lower bitrate, thus increasing the effective bandwidth of the interface. My display is capable of dual, but the 990 would need to be able to support dual as well in order for a dual cable to be of benefit to me. The manual doesn't speak to the DVI as being dual or single . I have a dual cable that will work either way, but will be of no benefit if the 990 does not support dual.