NUC or Xeon

[Marcin_gps]

I think that Xeon is a significant upgrade. You'd have to use a hdplex 400W or teradak ATX psu or some sort of DC-DC converter such as PIco PSU in combination with your Hynes LPS - if the Hynes LPS provides enough current for Xeon. 

 

The JCAT USB Card FEMTO really benefits from external PSU. It's a major upgrade, especially with a great LPS such as Hynes. 

That said, power supply for the motherboard/CPU is still very important, even the DC cables are. 

 

Best regards,
Marcin