I wanted to post this review 2 weeks ago when I first received my 3rd Generation Drobo, but sadly, the unit was DOA. After talking to Drobo via email ((a less than ideal experience as they made me register the unit first, then refused to answer questions I had asked several times like “do you send a new unit or refurb” and “what is the shipping process”)), I got the unit replaced via Adorama since they would send out a brand new unit. The ship back got there a week later, and for reasons unknown, Adorama waiting several days to ship a replacement. They did apologize for the delay, and upgraded the return shipping to overnight. I had the new unit the following day, and first thing I did was power it up with no drives in it to make sure it worked. It did power up, and went through it’s initial setup scheme. Being confident it would work, I powered it off, and dropped it in place of my 2nd Generation unit, and swapped the drives over. Power up didn’t take that long, but you could tell it was doing some migration of the data as they drives could be heard chunking away for a while afterward.
Initial testing showed the new unit getting about 36MB/sec over USB2 (sadly, my Mac Mini is only USB2), where the previous 2nd Generation Drobo only got about 16MB/sec over Firewire with the same drives.
Okay, last PSU “repair”, I promise (well, until I get another). The bottom of my pile had a Corsair CX600 on it that had shorted out, and nearly fused it’s CPU 12V connection to the motherboard it was attached to. I managed to get it off, but testing the power supply resulted in no output except the +5VSB line. I contacted Corsair, and they quickly set up an RMA for me. I provided them with pictures of the connector, cable, serial number, and picture of my Dr. Power II screen showing no output. I shipped the unit USPS on Saturday, it got there on Monday, they shipped out a replacement that same day, and I had the brand new unit in hand on Wednesday. This was obviously all West coast, but still. I’m pretty amazed by their turn around. Hats off to Corsair. 
Power supply repair number two, for me, is repairing a unit I’ve had for years, and “works”, but frequently, it will power up the the computer, then almost immediately power it back off, and require flipping the switch on the power supply off and on to get it back “working”. This behavior is indicative of either the Over or Under Voltage/Current latch kicking in (this could be semi-confirmed by unplugging fans, or hard drives from the power supply, and it would start up much more reliably). If the unit did successfully power up, it would run the computer with no problems for weeks/months at a time (I had the unit powering an IPTV box for 6 months previous to teardown for repair). Testing with my