IeGO makes an IEC receptacle that has a support. You can find it on the CryoParts list. I haven't listen to the the IeGO connectors, but they've been building a good reputation and they're base is either pure silver or Furukawa copper.
High quality "locking" IEC connectors?
Does anyone know of a high quality IEC connector (pure copper conductors w/plating) that actually locks into place? Something similar to the connection for a balanced interconnect? or maybe something like a twist lock connection? I'm sick of trying to prop up my power cords to ensure that they are connected securely. I've seen some lower quality connectors available but nothing with good quality copper conductors. This seems like such an obvious need in high end audio. Anybody have any ideas?