Pros: No bios or driver complications, so basic functionality worked right away. Love the plethora of additional utility tools. After a month of use, I haven't noticed any problems with it at all for my set up.

Cons: Several minor problems: 1. Sata connectors face not orthogonal to the plane of the board, but outward continuing in one of the directions of the plane. This may still be technically ATX compliant, but it cuts things close at least for the standard ATX chassis I used, which worked just fine for my previous motherboard. 2. The drivers listed in the installation disk are not adequately descriptive. It makes no sense to not identify what types of devices the drivers are for, instead opting for the vague marketing brand names that rarely have any connection to the actual names of the device. 3. Few documentation problems particularly with pin connectors. The board itself is fine in this regard, but details for users weren't quite sufficient. Took a fair amount of google searches to conclude there is no chassis case open connector for instance. Little things like that made setup rather slow. Most these problems are solvable so I'd still give this board 4.5 rating vs what it advertises

Overall Review: Board looks pretty. The ugly upright heatsinks and delicate bulky capacitors of my last board make this one look like a work of art in comparison.

Pros: Does what it was sold as with the following exception.

Cons: The QVL for PRIME-B450M-A with a 2nd gen Ryzen states that 4*8GB CMD32GX4M4C3000C15 will run at a speed of 3000. However, the BIOS and Windows 10 read a speed of 2133.

Pros: Does the job it says it does, with one notable exception.

Cons: The QVL for a 2nd gen Ryzen states that 4*8GB CMD32GX4M4C3000C15 will run at a speed of 3000. However, the BIOS(using latest update) and Windows 10 read a speed of 2133.

Overall Review: Its been a while since I built a new PC but I don't remember having to fuss with documentation for pins as much as I did with this motherboard. Not a deal breaker.

Pros: This drive performs as intended with one significant exception that will be listed in the cons.

Cons: This drive BSODs frequently. The corsair forums have a decent number of threads on the issue but in short, when the problem occurs, a BSOD stop error appears and it cannot write out the error to disk. On restart, the drive is not detected. Full power off is required for the drive to be detected. The latest firmware 1.3.3 has supposedly fixed the problem but I haven't found that to be the case. Corsair employees simultaneously deny widespread problems while releasing several firmware updates over the past few months. Ultimately, the deciding factor for purchase should be chance of getting this problem and the cost of reinstalling everything on a new drive after RMAing the old one. Even if the firmware fix itself corrects the problem, a secure erase is recommended by corsair employees. So, if you are the sort of person who likes to spend weeks tweaking things to be just right, this problem could cost you a lot of wasted time.

Overall Review: Corsair avoids making it too clear how significant the problem is and ways of verifying that it is in fact a problem with the SSD, but they do seem to be working hard to fix the problem.

Pros: It performs just as advertised and benchmarked by various 3rd party investigation.

Cons: My chassis is standard ATX, but I still had to come up with some creative solutions to fit the power connectors to this card. It was perhaps a half centimeter too long and came too close to some of the HDD bays. I still give this 5 stars because a solution was possible and it may be the chassis that is not designed well.

Pros: Came with some thermal paste which was a nice surprise.

Cons: Nothing.