Not enough power for 4 hard drives
594415
I really wanted to give the more stars, but the fact that it's a POWERED hub that cannot supply enough power to run 4 hard drives kills it.

I have four western digital 4tb 2.5" usb 3.0 external hard drives. When I connect three of them, everything works fine. When I plug in the fourth, one drive will start clicking as if it's not getting enough power. This is using the supplied power adapter plugged directly into AC power. I also tried a different USB power adapter just to rune that out. Still not enough power. Ugh.
2693003
Doesnt handle 2.5inch drives well (tried three). keeps stopping on data transfers
1888585
The only gotchas are that the SATA and IDE ports go through a USB hub.  By the same token, a USB hub is also the reason you get four USB ports instead of two.  I would have preferred either a molex or SATA connection for the external power connection, but it looks like the connector is a modified DIN, making it less proprietary but still weird.
517934
After I connected this hub and attached 4 external hard drives to it, I could only access one; kept getting I/O errors.  Then suddenly my computer would not boot after power off when I switched power back on.  I unplugged the hub and my computer booted normally on power on.  I discovered that if the power was off and I pushed the computer power button, THEN powered back on, the computer would boot up normally.  From all this I concluded that the USB hub was backpowering the computer, so I ordered a new Belkin hub.  I just got it and installed it, and the computer boots up normally after power on.

 Thus the hub was at fault.
3801143
Replace standard 1TB drive with this one, provided some improved response and shortened startup time by about 30 percent, this will vary by machine/system....uses less electrical power than full sized drives...installed this in a PC/system just took adapters for the smaller size
1454459
Have only gotten this to work with 2 hard drives.  Not sure if its the hard drives or this thing.
389625
Not enough power to run two monitors off my main computer....
3928448
So far I haven't been able to use this as described.  I get an error message that I am exceeding the power capacity when I plug in just one flash drive.  Have written to manufacturer for technical help as from my end, I have done all the recommended things and my PC is Windows 7 ......
4117994
Power cord would not sufficiently power hard drive. The data connection worked fine though. I had and extra power plug in old computer and ran data cord around front to usb. Ended up working only because i had a desktop computer with proper power plugs. Otherwise it would have been useless.
1644834
For some reason it is running hot. Around 50C during idle and over 65C when under the load. Another 4 drives (Crucial) in the same enclosure are running at 30C idle and 40C under the load. Something is not right for both ADATA drives I have. Will monitor a little more and probably will RMA it.
1004016
4 stars only because it will only charge 4 devices without a computer connected.
4711691
I can never have enough of these things. When upgrading some older machines or turning spare parts into a HTPC or NAS, the power supplies may only have one or two SATA connectors and I'll be digging through my parts bins for some of these adapters. I bought a couple packs of these and they're exactly as they should be.

I'm assuming the posts about fires are from GPU miners using SATA poweres risers. SATA has a 4.5 amp draw design limit (54 watts on the 12 volt, far shy of a PCIe connectors 75) and using a Molex > SATA > PCIe riser setup has so many connection points to go wrong...I don't know why anyone would try it. If you're using your machine to mine, spend a little extra on a proper setup or be absolutely certain your GPU doesn't try and pull more than 54 watts from the slot.
211631
Got 8 drives, according to the dates on the drive, five are two months old, three are four months old

Installed them all and thrashed them a bit.  Every drive was able to sustain ~140MB/s read and write (R/W /dev/zero)
1819961
Good read/write speeds, but does not put quite enough power through to power hard drives.  They will occasionally disconnect/reconnect.  Ethernet speeds are as expected
1208914
DOA.  Called La Cie tech support and explained the problem. Rep thought it was a power supply issue. I returned the drive to Amazon.
1748157
Doesnt work with SAS hard drives as mentioned, it fits in with no ptoblem, but the problem is it doesnt power the disk up
4245864
Be careful with the 200GB Seagate Barracuda drives.  I got a bad one.
It works, but is very slow and makes lots of clunking sounds.