Apple is back to their old ways: In 2012, when Apple launched the thin-edged iMac, our base-level iMac had empty solder pads where a Fusion Drive's SSD slot might live.

The following year, our teardown unit arrived with an empty slot, ripe for the upgrade.

The curved heatsink is a bit beefier than we saw earlier this week, and a return to the 2013 design; perhaps helping that new Broadwell CPU find cooler pastures.