Pros: Works well with one or two processors. I tried both configurations.

Cons: Will not mount in a desktop case - the hole pattern seems to be for specific supermicro cases.

Pros: None.

Cons: Totally discharged and can not be charged.

Overall Review: I bought three as spares. All three have different labeling. So, I just checked and they were dead. I checked them in a Samsung charger that I got with my phone. All three were indicated as defective by the charger.

Pros: Has hot swap-able fans and drive bays. A redundant power suppl can be added. Air duct for the processors allows efficient cooling with passive heatsinks.

Cons: The front panel connections have 1 connection for the power LED that is in a 3 position housing. It cannot be connected to a supermicro motherboard that I had used. This prevents the panel indicators from working.

Pros: Low power and efficient. Reasonable price.

Cons: None that I can think of.

Overall Review: I have 2 of these running in a server board. This upgraded an old i7-920. The performance for running simulations is much greater than the 4x core count increase.

Pros: This processor does more with less power than my old I7-920. I expected twice the performance of the old processor, but it seems to be doing about 13 times the work with simulations as the old old one with half the power consumption.

Cons: I can't think of any cons.

Overall Review: I am using 2 of these in a server board. They run cool under full utilization. They each draw about 67 W according to a hardware manager program.

Pros: Keeps my CPU package at 54C with an ambient of 26C under a full load of 65.5W of dissipation.

Cons: Should not be used without fans and air shroud.

Overall Review: This heat sink is design to work on a CPU that is installed on a motherboard in a Supermicro server case. The case is furnished with an air shroud that concentrated the flow through this sink. This takes air from the front of the case, focuses it at the sink and exhausts the air at the back of the case.