xVision HDMI/SDI High Definition Distribution and Converter Kit
Featuring integrated power supplies, convenience outlets, magnetic stacking systems and clamp mountable chassis, Xvision's video converters are truly designed for the road for use in mission-critical applications. This kit includes a HDMI to SDI converter, a 1x4 SDI distribution amplifier and four SDI to HDMI converters in one convenient package.

Roland HDMI - 3G SDI Bi-Directional Converter with Delay
The VC-1-DL converter not only allows bidirectional conversion of SDI/HDMI but it also provides frame sync and delay adjustment of up to 9 fields (4.5 frames) for audio and video independently.