Pros: I like how it is made of very strong metal that isn't going to bend or break, the card slots read actually rather quickly to my surprise.

The fan nobs are smooth to turn.

Cons: The smaller size of the item makes it a little difficult to fit in a 5.25" bay, but it still fits; however, to my demise, it's not a perfect fit.

It would be nice to have the option of running the ports at USB 2.0 speed, but, there is no option for it, and the card reader will use one USB 2.0 slot as expected.

the molex power connector is nice, setup where you can daisy-chain other hardware from it, rather than using a full molex connector just for the fan controller, this is really nice if you have some molex fans you can connect into it, but you won't be able to control them.

Other Thoughts: All in all, this is one of the best fan controllers I have seen;however, personally, I think I should have gotten a touchscreen one, but hey, this will last much longer.

Manufacturer Response:

Dear Valued Customer,
Thanks very much for your purchase of ROCK MASTER V3.0, and we are really sorry for all the inconvenience it had caused to you.
Would you please directly contact support@deepcool.com for further Tech&RMA support, thanks!
DEEPCOOL strive to offer the most reliable product and best service, your kindly support is appreciated!
DEEPCOOL Support Team

Pros: Worked and fit wonderfully in my case. Took only a few minutes to install and worked perfectly. The knobs feel high quality and not cheap, and the extra features it has like 2 USB 3.0 is a bonus. It looks cool too, I really like the blue lights.

Cons: None so far.

Other Thoughts: I'd recommend this product to anyone who likes to quickly control fan speeds with a touch of a knob.

Pros: I wanted a normal mechanical fan control and it works great. USB 3.0 and card reader is just a plus.

Cons: None

Other Thoughts: Lights are bright. The strobe effect is easy to ignore as tower is on the floor. Install was easier in my Rosewill Challenger case because I put 1 of the included screws in it. Then put on the tool less fastener. I can't see how people can't figure out how to install a simple component like this. Good product.

Pros: It does what it says it will.

Cons: -hard to fit in the 5.25 bay.

Other Thoughts: it isn't out of this world build quality, but if you want to control your air flow and would like the sd card reader on your rig, this will do the job. SD card slot works fine.

Pros: Made of metal, feels solid

Cons: My SD cards don't fit on the slots. It was really tight putting into my Antec 5.25" bay.

Manufacturer Response:

Dear Valued Customer,:
Thanks very much for your purchase of ROCK MASTER, We sincerely apologize for the inconvenience. The product comes with a warranty and can be replaced or returned. Please allow our technicians troubleshoot the problem and we will make sure the issue is carefully taken care of . Please contact us directly via email to support@deepcool.com for further Tech&RMA, your kindly support is appreciated!

DEEPCOOL Support Team

Pros: - It works
- Fan controllers are nice to have as an all in one with the SD card reader.
- Easy to set up

Cons: - The panel did not fit into my 5.25" external drive bays
- The SD card did not fit all the way in to its slot
- The bay is not long enough(does not reach the back screw slots

Other Thoughts: I might return this item because it does not fully fit in the drive bay

Manufacturer Response:

Dear Valued custumer,
Thanks for your purchase of Rock Master V3.0,and we are really sorry for all the inconvenience it had caused to you.
Would you please derectly contact support@deepcool.com for further Tech&RMA support, thanks!
DEEPCOOL.strive to offer the most reliable and best service ,your kindly support is appreciated!
DEEPCOOL Support Team

Pros: Simple, metallic design
Physical knobs
Still using it
Works great (mostly)

Cons: The solder on the Fan2 knob is loose and needs re-soldering.
The left USB 3.0 port does not work.

Although it came with these defects, I suspect that these are simply unusual defects.

Manufacturer Response:

Dear Valued Customer,
Thanks for your purchase of DEEPCOOL ROCK MASTER V3.0. We are really sorry for all the inconvenience it had caused to you. DEEPCOOL always stand behind the product to assure all your problems are carefully taken care of. Please directly contact support@deepcool.com for further help, thanks!
DEEPCOOL Support Team

Pros: Does exactly as advertised.

Cons: none yet

Pros: None

Cons: Not sure if I am the only one to experience this but I installed this in my sons new computer. Have noticed a high pitched noise that I can only describe as some sort of feedback occurring. Very strongly suspect it has something to do with this device most likely from the fan control. Plan to remove it in the near future and will post an update. Seems like a good idea for a product but in practice not so much. Did notice when I took it out of the box the construction seemed rather cheap looking. Not sure what I was thinking buying this as fan speed control really isn't necessary. Cannot even remotely recommend this product. Please do yourself a favor and look elsewhere.

Manufacturer Response:

Dear Valued Customer,

We sincerely apologize for the trouble you are having with this unit. DEEPCOOL will always stand behind the products and we will make sure your case is taken care of. The product comes with a warranty that it can be replaced or returned. Please allow our technicians to address the problem and contact us directly via e-mail: support@deepcool.com for any further assistance.

DEEPCOOL Customer Support

Pros: lots of features

Cons: ...unfortunately they don't work all that well

Other Thoughts: the fan controllers worked but half the LEDs didn't. only half the USB3 ports worked and 1 of 3 (don't own any microSD to test) media worked (CF didn't, SD was fine). needless to say this was returned

Manufacturer Response:

Dear Valued Customer,

We sincerely apologize for the inconvenience. The product comes with a warranty and can be replaced or returned. Please allow our technicians troubleshoot the problem and we will make sure the issue is taken care of. Please contact us directly via email to support@deepcool.com and we will be more than happy to arrange a replacement to you.

DEEPCOOL Customer Support