High Quality eSATA enclosure?

Does anyone make a high quality eSATA enclosure? I honestly don't even care if it's hot swap. I do not want a SATA to USB enclosure because I do not want an ASmedia or JMicron controller. I just want a backplane and an eSATA (or Mini SAS) connector. I am aware that Synology makes something like this, but I think their connector is proprietary. OWC makes some thunderbolt enclosures with in Intel chipset, but the design spec also includes a JMicron controller so I question the reliability.