Were you referring to this http://www.vicorpower.com/ac-dc/converters/isolated-ac-dc-converter-pfc ?
Or perhaps this http://www.vicorpower.com/products?productType=cfg&productKey=V24A28C500BL ?
That would be nice to put in a chassis especially if you want it to be compact.
The exact part number is PFM4914VB6M24D0C00, with an AIM 11714 series rectifier at the input. It is thin (111 x 36 x 9.4 mm) and can drive more than 1 HDPLEX . However, there are a few problems:
1. Cooling: although manufacturer suggests mounting to to the chassis would suffice, I highly doubt it.
2. Expensive: $197 at Digi-Key
3. 24V output: at the upper end of suggested HDPLEX input. This may cause over voltage shutdown. A series diode may solve this issue.
I'm tempted to create a custom PCB with it + switching regulators. But I'm too busy atm with a silicon project.
(Sorry for the post being irrelevant to the thread)