I transferred my 665.17 GB Photos Library from my Samsung T7 Shield to the new USB 4 Samsung 990 Pro. It took 29'45" for the complete process, or 29'11" for the actual transfer (since it took 34" for the transfer to be prepared). So that means a transfer speed of 373 MB/s or 380 MB/s depending upon how you calculate it. However, the speeds and behaviour really ranged, probably because of the types of files transferred inside that library. Here are the various transfer speeds at different points in time during the transfer. The graph shows the variability in the transfer speed.
Temperature peaked at 51 C.
The second file transfer was a directory full of subfolders of various photos and stuff. It was for 477.4 GB and took about 15 minutes including preparation time, so probably around 530-550 MB/s transfer depending upon whether or not you include the preparation time. Then I did yet another file transfer of about 60 GB. At the end of all this it had peaked at 55 C. It was in a more cramped spot though so I've since moved it to a somewhat more open area to see if that affects the temperatures. Currently idling at 42 C.
BTW, now Photos loads instantaneously on the 990 Pro. With the old T7 Shield, sometimes at first launch there would be a delay of a few seconds. I'm not sure why, but I'm wondering it was asleep and takes a couple of seconds to wake up.
At 55 C the Qwiizlab enclosure was very warm, but not super hot. The T7 Shield also got warm, but significantly less warm than the Qwiizlab enclosure.
Temperature peaked at 51 C.
The second file transfer was a directory full of subfolders of various photos and stuff. It was for 477.4 GB and took about 15 minutes including preparation time, so probably around 530-550 MB/s transfer depending upon whether or not you include the preparation time. Then I did yet another file transfer of about 60 GB. At the end of all this it had peaked at 55 C. It was in a more cramped spot though so I've since moved it to a somewhat more open area to see if that affects the temperatures. Currently idling at 42 C.
BTW, now Photos loads instantaneously on the 990 Pro. With the old T7 Shield, sometimes at first launch there would be a delay of a few seconds. I'm not sure why, but I'm wondering it was asleep and takes a couple of seconds to wake up.
At 55 C the Qwiizlab enclosure was very warm, but not super hot. The T7 Shield also got warm, but significantly less warm than the Qwiizlab enclosure.
