There are also some disputes on the numbering for this PS2 version, since there are actually two sub-versions of the SCPH-70000.
As of V4 everything was unified into one board, except the power supply.
The two versions of the PS2 with an Eye Toy camera.
The device was poorly received, with some major features absent from the first revisions of the hardware, and has thus far experienced very weak sales in Japan, in spite of major price drops [5].
V5 introduces minor internal changes and the only difference between V6 (sometimes called V5.1) and V5 is the orientation of the Power/Reset switch board connector, which was reversed to prevent the use of no-solder modchips.
In September 2004 Sony unveiled the third major hardware revision (V12, model number SCPH-70000).
These included a PCMCIA slot instead of the Expansion Bay (DEV9) port of newer models.
Developers also complained that it was difficult to develop for the system, with little in the way of reference material from Sony for its exotic architecture.
However the New Slim Silver Models have more issues with playing PlayStation games than the first PS2 revisions.
In preparation for the launch of a new, slimmer PlayStation 2 model (SCPH-70000), Sony had stopped making the older PS2 model (SCPH-5000x) sometime during the summer of 2004 to let the distribution channel empty out stock of the units.
This allowed the PS2 to tap the large install base established by the PlayStation.
