They’re the exact same laptop, except that System76 neutered theirs to strip it of UEFI. Which is lame… especially since they left UEFI references in the BIOS settings menu. I’ve asked them to fix that, they told me they have no plans to. Even more lame.
It also happens to be one of the only PC laptops with an Intel Iris Pro GPU. As such, we use it extensively for Android development at Console, Inc..
I recently stumbled on a service photo guide on some random Chinese site, and figured I’d mirror it here for those in need. It covers teardown to the RAM, SATA, and mSATA drives. Enjoy.