Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Will this run on usb 2.0 ?
Document: Before deciding it was defective I tried it in a usb 2.0 port and it mounted fine. Then I updated my usb 3.0 controller (in Device Manager), making it work fine in the usb 3.0 port.
This was a plug and play installation. It is usb 3.0 but is also 2.0 comparable. I have it connected to one of the 2.0 usb's of my windows 7. The response is just like the internal hard drive. So far no issues whatsoever. The only thing to remember, is to unplug the red and black wires in the enclosure so you can open the enclosure fully. That way you will be able to put your hard drive inside.
It encloses the drive and connects it via usb 3.0, so I guess it performs as advertised. One blue LED which actually blinks when something is happening, which is better than can be said for a lot of these cheep enclosures I've bought.Recommendable for backup and occasional access, but buy something more robust if you'll be using it frequently.
I had this together in less than 10 minutes. My internal (from old win pc) 1tb Barracuda 7200 rpm slipped in easily. Now have a usb 3.0 1tb backup for my Mac Mini 1tb via Time Machine.Slick resolve to what would have been a several hundred dollar replacement. Easy install, great functionality and sturdy build. If I need it I will get another and suggest you get this too.
Most important thing to know is that it works well on windoze 8 64 bit quad core gateway machine. No directions included but not that hard to figure out. My Barracuda 2 TB is quite at home in this enclosure. Claims of 3 gigabite transfer speeds with usb 3 is pure BS IMHO. Actual sustained transfer rate is around 85 megs per second, which ain't all that bad since my usb 2 runs at sustained 20-30 megs per second. Don't be afraid to buy this!
I don't know if it's SATA 3.0, but honestly unless you're transferring files from one SATA 3.0 SSD to another SATA 3.0 SSD over USB 3.0, you'll run into other bottlenecks far before SATA throughput speeds would slow you down.This drive housing has just one activity light, a blue LED strip on the back.
I needed a cheap HDD enclosure, and this had the features I need for the price I was willing to spend. Works fine on both USB 2.0 and 3.0 as expected. I only gave it 4 stars because it didn't WOW me, nor did I expect it to, be a simple enclosure.
I bought this case to get USB 3.0 speed for my new Toshiba 3TB HDD. Works great. Nice case, virually identical to my Vantec NexStar 3 USB 2.0/eSATA cases I had been buying for about 60% the cost.
It also tends to drop the speed a lot when in use, at least at first. After a few minutes, it settles down and moves the data at a respectable speed, almost double that of my older Sabrent USB 2.0 enclosure. I would spend a few extra bucks and skip over this one, there are better for just a few dollars more.
I ordered three of these to replace my USB 2.0 enclosures. They work great. Nice boost in transfer speeds. No serious problems at all.Now for the "but" part:Two of the three had the same defect. The small connector for the front LED actually fell off the circuit board! I'm serious. No nudging at all. They just came right off.
Answer: Yes, just a little slower than 3.0.