Timetec32GB KIT(2x16GB) Compatible for Apple 2017 iMac (27-inch w/Retina 5K, 21.5-inch w/Retina 4K / Non-Retina 4K) DDR4 2400MHz PC4-19200 SODIMM MAC RAM Upgrade for iMac 18,1 / iMac 18,2 / iMac 18,3

X0015CARWEIt’s mentioned Timetec 16GB Compatible fo...,. 1 / iMac 18,2 / iMac 18,3New wandering should i open or return as it is

Arrived on time, took me 3mins to install. Perfectly working my iMac is now with 40GB

It needs to physically fit into the slot at the back of iMac (Retina 5k, 27 inch, late 2014). Why don't you check your products before guessing where they will fit. Just because it's Mac compatible doesn't mean it'll fit all Macbooks and iMac. I still want/need this RAM. What can you do to solve this. It needs to physically fit into the slot.

Since installing my computer can now take heavy loads. A major upgrade for my computer. If you do heavy lifting like video editing or music you’ll need to make sure your computer has enough ram to run your program and This is a Great Brand and also a Great Price..

works great, i bought this 32gB kit about a month ago

Funciona para mi iMac

Upgraded the memory in my iMac 2017. Just had to disconnect the power cable, push a release button to open the slot and install the memory. Booted up right away with no issues.

Update - 07/22/2020Timetec did respond via email to my email request for support. They offered to replace the RAM memory free of charge. It was 9 months old. They provided a free shipping label, and I shipped the product back. They shipped back replacement memory free of charge timely. They sent tracking information. I installed the new Timetec 2 - 16GB cards memory easily and did not need to switch slots as with the prior RAM memory shipped. My iMac recognized the new RAM memory with no problems. I now have 40 GB RAM memory installed, and system is working without crashes so far after 24 hours. I still think it is important for people to know that if your computer system crashes frequently after an upgrade to the RAM, check the RAM. I will update again if I notice my system crashing again in days to months.I am impressed with Timetec customer service. They emailed me that they are a small business, and do not list a phone number or answer a phone. They did everything correct to make this purchase right. I will purchase from them again without hesitation. I am posting to let people know my experience. I upgraded my overall rating to 5 star. I am not going to fault them for the initial bad memory since I realize this can happen with any product. Thank you Timetec :)======================Initial Review - 7/2020I received 2 sticks of 16GB RAM Timetec memory last year and was able to get 27 inch IMAC 2017 5 K display 3.8 Hz working after adjusting which slots to insert memory. I had to move the memory sticks along with the Apple installed memory and it seemed to work when placed in slots 2 and 3. My system had 40 GB of memory. But then my IMAC started crashing. I can't remember how long it took before the system started crashing. It may have been days to weeks. Black screens and reboots. Very irritating. I blamed the Apple product IMAC. I did not associate this with the Timetec RAM memory. We just used our windows computers and other laptops for important stuff in case the IMAC crashed. We have been dealing with the IMAC crashes daily for months. I bought cleanmymac program and this software program also crashed every time it tried to run the RAM check. I contacted cleanmymac and they could not figure it out. We had no viruses or malware. Finally, after additional months of having the IMAC crash, I was ready to junk my IMAC. I had contacted Apple suppliers regarding replacing boards and doing hardware servicing and they all recommended that it would be too expensive. As a last resort, I decided to finally remove the Timetec RAM and guess what?! The IMAC system works without crashing. I tried calling Timetec to discuss, but they don't have a phone number. I am awaiting their response via tech support and support email. I agree with the others here who have had problems with the 2017 IMAC system and can't believe how much time I wasted trying to fix my IMAC issue. I wish I had thought of removing this RAM many months ago. I decided to post this to help others just in case your Apple IMAC starts crashing or giving you problems. Think about removing the Timetec RAM and see what happens. It may save you from junking your IMAC computer. It did for me.