HP 256MB PC2100 DDR-266MHz non-ECC Unbuffered CL2 200-Pin SoDimm Memory Module for Color LaserJet 4650/4700/5550 Series Printers (Q2631-60002 Q2631AX). This is a seller refurbished part in great working condition. May show signs of cosmetic wear ut this should not interfere with the effectiveness of the product. Taken from a working environment.