AMD Phenom II X2 555 (HDZ555WFK2DGM) CPU 4000 MHz 3.2 GHz Socket AM3 100% Work 730143276061 | eBay
AMD Phenom II X2 B55 - HDXB55WFK2DGM
Unlocking the Phenom II X2 555: 3.2GHz Quad-Core for $99
SYSMark 2007, Photoshop CS4 & x264 Encoding Performance - AMD's New Year Refresh: Athlon II X4 635, Phenom II X2 555, Athlon II X2 255 & Athlon II X3 440