This OPC drum unit is compatible with CLP-310, CLP-320, CLP-321, CLP-326, 3180, and 3185 laser printers and serves as a replacement for the CLT-R407 drum.Designed for function, it supports consistent print quality throughout its.The drum features robust construction suitable for regular use and is engineered for straightforward installation.It comes in neutral packaging and is ready for easy integration into supported printer models.