if your talking about the ps3 theres no need for external
http://ps3.qj.net/Like-the-manual-said-PS3...pg/49/aid/72455
Things needed for Replacement
Replacement HDD (2.5", SATA) LAPTOP DRIVES..
Phillips and slottet head drivers (+ and -)
1.Turn of the console, lay it on its sides, and open...