V3 has a substantially different internal structure from the subsequent revisions, featuring several interconnected printed circuit boards.
The PlayStation 2 holds the record of fastest selling video game console ever, 100 million PlayStation 2 units were shipped in only five years and nine months, shattering the previous record of nine years and six months by the PlayStation.
Currently, most people just use V12 for both models, or V12 for the old model and V13 for the newer one.
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.
There is also now a V14 model (SCPH-75001) which contains an integrated EE and GS (disputed - see talk page) , and different ASICs compared to previous revisions, some chips having a copyright date of 2005 compared to 2000,2001 for earlier models.
The ability to play DVD movies allowed consumers to more easily justify the PS2's relatively high price tag (in October 2000, the MSRP was $300) as it removed the need to buy an external DVD player (indeed, it could be said that the success of the DVD format was partly due to the PS2's ability to play DVDs, as the format seemed to appeal more to consumers after the console's launch).
A product named HD Connect can be soldered into the unit giving hard drive support though.
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