My Antec MX1's fan got too noisey to tolerate after about two years service. Moved drive to Thermaltake Max 5 which is not recognized by the HR21-100. Moved drive back to MX1 and it works fine with HR21, but still noisey of course. Does the drive power in external boxes come through the eSATA connection or from the box power supply. It seems that the drive spins up when powering up the MX1, but stays dormant when the Max5 is powered up. Considering the Thermaltake Docking Station, but there are a lot ob bad reviews out on it and I am fearfull. Do you reccomend it for the HR21?
Haven't seen any complaints about the TT docking stations on this forum. I have a couple, tho. For one thing the on/off switch is very delicate and if used a lot will fail. Better to use the power plug to turn them off and on, I think. Another problem I see with them is that as they age, it gets more difficult to seat the HDD in the dock properly. I've got a couple like that. Takes me longer to seat the HDDs and reboot the HR and dock to see if it works than it does with new TT docks.
Aside from those two minor problems, I still use mine and will continue to do so. Just keep in mind, cheap is cheap and I've taken a dock apart and they're pretty simple devices.
To answer your question, If I had an HR21, I'd go with the TT dock. Should work fine, just make sure you have the HDD properly seated.
About the Amazon reviews, I do read some of them and I'm always surprised at the reviews of everything. Seems like most folks buy stuff and can't figure out how to get that stuff to work properly, so they blame it on the device, not their own ignorance.