Pros: Good value for what you get.

Cons: Although it states it will work in Macs, nothing is said about the late 2013 iMac 27", of which there are major issues. 1st issue is extremely slow booting. 2nd issue is the iMac no longer would wake from Sleeping by pressing a key or a button on the mouse. With this memory installed along with the original Mac memory, the only way to wake this sleeping iMac is to press the power button.

Overall Review: Normally if you by memory with the same specs as what the manufacturer specifies, you have a better than average chance of it working correctly. Jeers to Newegg for charging a restocking fee and you still have to pay the postage for the return shipment.