Upgrading a iMac 2017 4K with 1To fusion drive

[Laurent78]

Hi.
In order to upgrade my slow iMac 2017 with fusion drive, I have ordered a Crucial MX500 500GB with an enclosure (Cable Matters Aluminium) to make a bootable external SSD.
I just saw some incredible price on Amazon for SSD NVMe drive (WD Black at 80USD). So the question is : should I reconsider my choice ? Actually I am concerned about the heat: i suppose that i would need a robust enclosure with heat sink to handle a this kind of SSD which would probably heat a lot. But does it really worth it in real life iMac usage (mainly office work, video games and sometimes video encoding) ?
Should I worry for temperature with the Crucial MX500 too ?
Thank you for your advices and feedback.

 

[Fishrrman]

A USB3 (3.0) enclosure that supports UASP (USB attached SCSI protocol) will give you read speeds around 420-430MBps.

You can put an nvme drive into a USB3.1 gen2 enclosure, and get faster speeds -- reads around 965MBps.

However, these things DO "run hotter" than the 2.5" SSDs when "under load".
At times, almost "too hot to hold" (but that's under extremely extended disk writes).
Normally, they seem to fall into the "pretty warm" category.
Some enclosures may help with this more than others.

I have one which I put together myself using a USB3.1 gen2 enclosure (there are numerous ones out there) and a Crucial nvme blade drive. I use it for backups, no problems.

 

[majaca]

A USB3 (3.0) enclosure that supports UASP (USB attached SCSI protocol) will give you read speeds around 420-430MBps.

You can put an nvme drive into a USB3.1 gen2 enclosure, and get faster speeds -- reads around 965MBps.

However, these things DO "run hotter" than the 2.5" SSDs when "under load".
At times, almost "too hot to hold" (but that's under extremely extended disk writes).
Normally, they seem to fall into the "pretty warm" category.
Some enclosures may help with this more than others.

I have one which I put together myself using a USB3.1 gen2 enclosure (there are numerous ones out there) and a Crucial nvme blade drive. I use it for backups, no problems.

I thought SSD's don't have any issues with getting "hot"?