Basically, if you were able to adapt a USB stick to the SATA connector, and the stick doesn't fall under the max bandwidth of the internal SATA connector, the USB stick would have identical benefits to the SSD. I think its wasteful, and I think even on base PS4 SSD is debatable. Only the internal flash memory of PS3 Super Slim is significantly
Not all PS3 Slim models are identical. There are some minor and major (depending on your use case) differences between the different Slim modes. HDD Size. Not all models have the same Hard Drive size from the factory. As they are standard 2.5' SATA drives, you can change this size at any time so is not that important. Almost certain all slim/super slim only have 2 USB ports. I think only some of the big old units had more than 2. My 60GB had 4, I think from the 40GB and 80GB onwards they knocked it down to 2. . 39 458 415 27 261 391 453 101