Myself, it's not elegant but I use a 6" desk fan pointed at the drive in a USB 3 dock - works.
When you're transferring this much data continuously an external drive without active cooling can exceed the drive's highest safe temp, causing problems. data, refreshed at whatever interval you set. HWMonitor & similar can monitor the temps of an eSATA drive, while Hard Disk Sentinel can give you temp readings using S.M.A.R.T. If you opt to use an external drive, consider cooling. Launch it and follow the same steps to clone your external drive to the new internal drive. Windows 10 will load as if you hadn't replaced the drive, so Macrium Reflect is still installed. Choose to boot from the external USB drive.Note that if your PC employs Secure Boot, you will have to turn it off in the BIOS before you can boot from an external hard drive. Plug the external drive into the PC that has a new hard drive installed.Make sure your PC is turned off before going through these steps. If you instead cloned to an external hard drive, you'll have to go through a couple of extra steps to get Windows working again on the new drive once you have it installed. If you cloned your original drive to an internal drive using an enclosure, you can simply install the new drive in your PC and turn it on. How to restore your clone on a new hard drive You can now continue with steps seven to ten in the preceding section. A blue rectangle will appear when the disk is selected.
In this case, I'm choosing my C: drive because it is the drive I'm swapping out.
AOMEI Backupper: Like Macrium Reflect, there is a fully-functional, free version of AOMEI that lets you create system images, back up hard drives, and clone drives.