The 13.3" mid-2012 Apple MacBook Pro can still be bought new. MPG uses several of them for home servers and computers for the kids (rock solid!), but their utility goes far beyond that: a robust and relatively compact laptop for field use.
One of the key features of the non-Retina “unibody” MacBook Pro is a simple swap-out of the internal SATA drive (more on that below). In this case, MPG swapped in the OWC 2TB Mercury Electra 6G SSD, as shown below. Cloning the existing system made it hassle-free—no need to reinstall anything (the OWC Drive Dock was used for the cloning, but the Voyager would also work). See How to upgrade your system/boot drive.
Voilà! 1.92 terabytes* of storage inside the 13.3" MacBook Pro! Many older MacBook Pro models are suitable for such an upgrade; the newer Retina models do not use internal SATA, so the 2TB Electra Max 6G SSD is not an option. However, there are other SSD upgrades for certain Retina models.
* The OWC 2TB Mercury Electra 6G SSD has 2TB of flash memory, leaving 1.92TB usable space after the 7% over-provisioning.
It takes about 5-10 minutes with a screwdriver and torx screwdriver to swap out the internal SATA drive (or memory); OWC has DIY videos such as the one for installing in this 13.3" MacBook Pro. Also seen below are 16GB OWC memory for MacBook Pro, already installed.