The converter will allow you to use an Apple Cinema Display as an HD-SDI monitor. It's a great device we have used for dozens of Broadcast quality HD-Cam SR onlines. List price is over 500.00 plus $40.00 for power supply.
We are selling it all for $370.00 including power supply. (We really want to sell, so make an offer...)
here's more info from the AJA site.
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www.aja.com]
email or Call JP 310.566.7870 or 310.210.1529